A stainless steel cold-rolled oil mist absorption device

Abstract

This utility model discloses a stainless steel cold-rolled oil mist absorption device, including a fume hood and a guide hood. The top of the fume hood is connected to a wind box, and the guide hood is conical with a wind box connected to its top. The top of the wind box is connected to the wind box. The bottom of the fume hood is provided with an adjustment component, which includes a mounting frame and rectangular blades. The mounting frame is screwed to the bottom of the fume hood, and there are several sets of rectangular blades, all of which are rotatably connected to the mounting frame via a rotating shaft. The air volume and direction entering the fume hood can be flexibly adjusted by the adjustment component. By moving the connecting rod, the moving connecting rod causes the end of the rectangular blade connected to the mounting frame to rotate, thereby adjusting the air volume and direction entering the fume hood. This avoids excessive air volume causing energy waste or insufficient air volume or incorrect wind direction causing oil mist to escape, greatly improving the oil mist capture effect and adapting to complex and changing production conditions.

Description

Technical Field

[0001] This utility model belongs to the field of stainless steel cold rolling technology, specifically relating to a stainless steel cold rolling oil mist absorption device. Background Technology

[0002] As an important part of modern industry, the stainless steel cold rolling industry occupies a key position in the manufacturing sector. With the continuous growth in demand for stainless steel and the continuous expansion of cold rolling production scale, the problem of oil mist generated in the production process has become increasingly prominent. Oil mist not only causes serious pollution to the production environment and affects the health of workers, but also damages equipment, reduces product quality, and increases production costs. In order to prevent oil mist from spreading everywhere, a rectangular air hood with suction holes is usually installed above the rolling mill to capture the oil mist.

[0003] In existing stainless steel cold rolling processes, the amount and direction of oil mist generation are not fixed and vary significantly with factors such as rolling speed, rolling pressure, and sheet specifications. For example, when rolling thinner stainless steel sheets, the required rolling pressure is lower, resulting in less oil mist generation and a more concentrated diffusion range. However, when rolling thicker sheets, the rolling pressure is higher, leading to a larger amount of oil mist generation and a more dispersed diffusion direction. Because traditional fume hoods cannot flexibly adjust airflow and direction according to these dynamic changes, excessive airflow may lead to energy waste when oil mist generation is low. Conversely, a sudden increase in oil mist generation or a change in diffusion direction can cause a large amount of oil mist to escape due to insufficient airflow or incorrect airflow direction, making it impossible to effectively capture. This lack of adjustment capability significantly reduces the effectiveness of oil mist treatment and makes it difficult to adapt to complex and changing production conditions. Utility Model Content

[0004] The purpose of this invention is to provide a stainless steel cold-rolled oil mist absorption device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel cold-rolled oil mist absorption device, comprising: A smoke collection hood, with a bellows connected to its top; The air hood is conical in shape and has an air collection box connected to its top. The top of the air collection box is connected to the air box. The bottom of the smoke hood is equipped with an adjustment component for flexibly adjusting the air volume and direction. The adjustment component includes a mounting frame and rectangular blades. The mounting frame is screwed to the bottom of the smoke hood. Several sets of rectangular blades are provided, and each set of rectangular blades is rotatably connected to the mounting frame via a rotating shaft. The top of each rectangular blade is provided with a connecting rod, and one end of the top of the rectangular blade is rotatably connected to the connecting rod via a rotating shaft. By moving the connecting rod, the moving connecting rod causes the end of the rectangular blade connected to the mounting frame to rotate, thereby adjusting the air volume and direction entering the smoke hood.

[0006] Preferably, the bottom of the smoke collection hood is provided with a mounting groove, and the mounting bracket is installed into the mounting groove and then fixed by screws.

[0007] Preferably, a sliding rod is fixedly connected to the middle of the connecting rod, and the other end of the sliding rod slides through a groove provided on the surface of the smoke collection hood.

[0008] Preferably, the end of the sliding rod located outside the smoke hood is connected to a fixing plate, and the fixing plate has a threaded groove, in which a bolt is threadedly connected.

[0009] Preferably, the bottom of the flow guide is provided with oil collection boxes at both ends and oil discharge pipes are provided on the oil collection boxes, and a T-shaped block is connected to the top of the oil collection box.

[0010] Preferably, the bottom of the flow guide is provided with T-shaped grooves at both ends, and the T-shaped block is slidably inserted into the T-shaped grooves.

[0011] Preferably, the top of the air collecting box has an opening that is connected to the air box.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) The air volume and direction entering the fume hood can be flexibly adjusted by adjusting the components. When rolling stainless steel plates of different specifications, the amount of oil mist generated and the diffusion direction change, the connecting rod is moved by driving the connecting rod to rotate the end of the rectangular blade connected to the mounting frame, thereby adjusting the air volume and direction entering the fume hood. This avoids excessive air volume causing energy waste, or oil mist escaping due to insufficient air volume or incorrect wind direction, greatly improving the oil mist capture effect and adapting to complex and ever-changing production conditions.

[0013] (2) The mounting bracket is screwed into the mounting groove at the bottom of the smoke hood. This connection method is simple and stable, and facilitates the disassembly, maintenance and replacement of the mounting bracket and rectangular blades, reducing maintenance costs and difficulties. The sliding rod in the middle of the connecting rod slides through the groove on the surface of the smoke hood, and the end of the sliding rod outside the smoke hood is fixed by a fixing plate and bolts, so that after adjusting the rectangular blades, their position can be stably fixed, ensuring the stability after adjusting the air volume and air direction, and avoiding the absorption effect due to accidental movement.

[0014] (3) The oil collection boxes at both ends of the bottom of the guide cover can effectively collect oil stains in the oil mist. The combination of the T-block and the T-groove makes the oil collection box easy to install and disassemble, and facilitates the treatment of the collected oil stains. The setting of the oil drain pipe makes it easy to discharge the oil stains in the oil collection box in time, maintain the good operating condition of the device, and reduce the damage of oil stains to the equipment.

[0015] (4) The baffle plate and the fume hood are integrated into one piece. The integrated fume hood has a shape with low wings and high middle. The high position has a collection box to guide the oil fumes to flow into the box, which is convenient for the external fan to draw them away. The baffle plate is made of 304 stainless steel and is pressed into a baffle shape, which can efficiently guide the direction of the oil fumes and make the oil fumes flow along the predetermined path to avoid disorderly diffusion in the fume hood. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the air guide cover and air collection box of this utility model; Figure 4 This is a schematic diagram of the oil collection box of this utility model; Figure 5 This is a schematic diagram of the structure of the present invention, showing the T-shaped block inserted into the T-shaped groove.

[0017] In the diagram: 1. Smoke hood; 2. Air box; 3. Draft shield; 4. Air collection box; 5. Mounting bracket; 6. Rectangular blade; 7. Connecting rod; 8. Mounting groove; 9. Screw; 10. Sliding rod; 11. Slide groove; 12. Fixing plate; 13. Bolt; 14. Oil collection box; 15. T-block; 16. T-slot; 17. Opening; 18. Oil drain pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] This utility model provides, for example Figure 1-5 The stainless steel cold-rolled oil mist absorption device shown includes: Smoke hood 1, with a bellows 2 connected to the top of the smoke hood 1; A flow guide hood 3 is cone-shaped and has an air collection box 4 connected to its top. The top of the air collection box 4 is connected to the air box 2. The bottom of the smoke hood 1 is provided with an adjustment component for flexibly adjusting the air volume and direction. The adjustment component includes a mounting frame 5 and rectangular blades 6. The mounting frame 5 is screwed to the bottom of the smoke hood 1. Several sets of rectangular blades 6 are provided, and each set of rectangular blades 6 is rotatably connected to the mounting frame 5 via a rotating shaft. A connecting rod 7 is provided at the top of the rectangular blades 6, and one end of the top of the rectangular blades 6 is rotatably connected to the connecting rod 7 via a rotating shaft. By moving the connecting rod 7, the moving connecting rod 7 causes the end of the rectangular blades 6 connected to the mounting frame 5 to rotate, thereby adjusting the air volume and direction entering the smoke hood 1.

[0021] The bottom of the smoke collection hood 1 is provided with an installation groove 8, and the mounting bracket 5 is installed into the installation groove 8 and then fixed by screws 9. When the mounting bracket 5 or the rectangular blade 6 needs to be repaired, replaced or cleaned, the mounting bracket 5 can be taken out from the installation groove 8 simply by unscrewing the screws 9. The operation is simple and convenient, reducing the difficulty and cost of maintenance.

[0022] A sliding rod 10 is fixedly connected to the middle of the connecting rod 7, and the other end of the sliding rod 10 slides through the groove 11 provided on the surface of the smoke hood 1. The end of the sliding rod 10 located outside the smoke hood 1 is connected to a fixing plate 12, and the fixing plate 12 is provided with a threaded groove. A bolt 13 is threadedly connected in the threaded groove. After the angle of the rectangular blade 6 is adjusted, the bolt 13 can be tightened with a tool to make one end of the bolt 13 abut against the smoke hood 1 to fix the sliding rod 10, so as to prevent the adjusted sliding rod 10 from sliding in the groove 11 and ensure that the angle of the rectangular blade 6 is stable after adjustment.

[0023] The bottom of the flow guide shroud 3 is provided with oil collection boxes 14 at both ends and oil collection boxes 14 are provided with oil drain pipes 18. The top of the oil collection box 14 is connected to a T-shaped block 15. When the oil in the oil collection box 14 accumulates to a certain amount, the oil can also be recycled by flowing into an external recycling bin through the external pipe connected to the oil drain pipe 18 under the action of gravity.

[0024] The bottom of the flow guide shroud 3 is provided with T-shaped grooves 16 at both ends. The T-shaped block 15 is slidably inserted into the T-shaped groove 16. When it is necessary to replace or clean the oil collection box 14, the screws 9 used to fix the mounting bracket 5 in the mounting groove 8 can be removed first, and the rectangular blade 6 can be removed. Then, the side plate screwed on one side of the smoke collection shroud 1 can be opened, and the T-shaped block 15 on the top of the oil collection box 14 can be pulled out from the T-shaped groove 16 at the bottom of the flow guide shroud 3, so that the oil collection box 14 can be replaced or cleaned.

[0025] The top of the air collecting box 4 is provided with an opening 17, and the opening 17 is connected to the air box 2. This stainless steel cold-rolling oil mist absorption device works by utilizing the high-speed contact and immense pressure between the rolls and the sheet metal during cold rolling. The rolling oil is atomized in the contact area due to the high temperature and intense friction, forming oil mist particles of varying sizes. This oil mist diffuses outwards. The fume hood 1 employs a semi-enclosed dome structure, with its bottom intake facing directly above the rolling area of ​​the mill. This creates a localized negative pressure zone using aerodynamic principles. When the induced draft fan in the air box 2 starts, the internal air pressure of the fume hood 1 becomes lower than the external ambient air pressure. Under this pressure difference, the diffused oil mist is absorbed. The air is forcibly drawn into the opening 17 of the smoke collection hood 1, thus achieving initial collection. The rectangular blade 6 is made of 304 stainless steel and has an oil-resistant coating. When the air direction needs to be adjusted, the bolts 13 on the fixing plate 12 are loosened, and the sliding rod 10 is pushed to move horizontally along the slide groove 11. The connecting rod 7 will then drive the rectangular blade 6 to rotate around the axis. The change in the blade angle will change the direction of the airflow. For example, when the oil mist diffuses to the right, the angle of the right blade can be increased and the angle of the left blade can be decreased to guide the airflow to the right, thereby enhancing the capture of the dispersed oil mist. The gap between the blades is positively correlated with the air volume. By adjusting the tilt angle of all blades simultaneously, the total area of ​​the gap can be changed. When a large amount of oil mist is generated during the rolling of thick plates, the blade angle can be adjusted to a suitable size to increase the total area of ​​the gap and increase the air volume per unit time. When the amount of oil mist is small during the rolling of thin plates, the blade angle can be reduced to decrease the gap and reduce the air volume, thereby achieving the on-demand distribution of air volume. After the adjustment is completed, the bolt 13 is tightened so that one end of the bolt 13 is pressed against the smoke hood 1 to fix the sliding rod 10 and ensure that the blade angle is stable. The oil mist collected by the fume hood 1 enters the air box 2 and is discharged into the external exhaust duct. Under the continuous suction of the induced draft fan, the oil mist is forced into the conical guide hood 3. Inside the guide hood 3, the oil mist will spiral upward along the conical surface. Larger oil mist particles will be thrown to the inner wall of the guide hood 3 due to the combined effects of gravity and centrifugal force, forming an oil film that flows down the wall. The oil collection boxes 14 at both ends of the bottom of the guide hood 3 are made of oil-resistant polypropylene. Their inlets are located at the lowest point of the inner wall of the guide hood 3, ensuring that the flowing oil film flows into the oil collection box 14. The T-shaped block 15 at the top of the oil collection box 14 and the T-shaped groove 16 at the bottom of the guide hood 3 are fitted with clearance, which not only ensures the stability of the installation but also makes it easy to manually insert and remove the oil collection box 14 for replacement.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel cold-rolled oil mist absorption device, characterized in that, include: Smoke hood (1), with a bellows (2) connected to the top of the smoke hood (1); The air guide (3) is cone-shaped and the top of the air guide (3) is connected to the air collection box (4). The top of the air collection box (4) is connected to the air box (2). The bottom of the smoke hood (1) is provided with an adjustment component for flexibly adjusting the air volume and air direction. The adjustment component includes a mounting frame (5) and rectangular blades (6). The mounting frame (5) is screwed to the bottom of the smoke hood (1). The rectangular blades (6) are provided in several groups and the rectangular blades (6) are rotatably connected to the mounting frame (5) through a rotating shaft. The top of the rectangular blades (6) is provided with a connecting rod (7) and one end of the top of the rectangular blades (6) is rotatably connected to the connecting rod (7) through a rotating shaft. By driving the connecting rod (7) to move, the moving connecting rod (7) drives the end of the rectangular blades (6) connected to the mounting frame (5) to rotate, thereby adjusting the air volume and air direction entering the smoke hood (1).

2. The stainless steel cold-rolled oil mist absorption device according to claim 1, characterized in that: The bottom of the smoke hood (1) is provided with an installation groove (8), and the mounting bracket (5) is installed into the installation groove (8) and then fixed by screws (9).

3. The stainless steel cold-rolled oil mist absorption device according to claim 1, characterized in that: The connecting rod (7) is fixedly connected to a sliding rod (10) in the middle, and the other end of the sliding rod (10) slides through the groove (11) provided on the surface of the smoke hood (1).

4. The stainless steel cold-rolled oil mist absorption device according to claim 3, characterized in that: The sliding rod (10) is connected to a fixing plate (12) at one end outside the smoke hood (1), and the fixing plate (12) is provided with a threaded groove, and a bolt (13) is threadedly connected in the threaded groove.

5. The stainless steel cold-rolled oil mist absorption device according to claim 1, characterized in that: The flow guide (3) has oil collection boxes (14) at both ends of the bottom and oil collection boxes (14) are provided with oil drain pipes (18). A T-shaped block (15) is connected to the top of the oil collection box (14).

6. The stainless steel cold-rolled oil mist absorption device according to claim 5, characterized in that: The bottom of the flow guide (3) is provided with T-shaped grooves (16) at both ends, and the T-shaped block (15) is slidably inserted into the T-shaped grooves (16).

7. The stainless steel cold-rolled oil mist absorption device according to claim 1, characterized in that: The top of the air collecting box (4) is provided with an opening (17) and the opening (17) is connected to the air box (2).

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