Oil mist purifying device for rolling mill

Abstract

The utility model relates to oil mist treatment equipment technical field, concretely relates to an oil mist purification device for rolling mill, including setting up in workshop several sets of rolling mill, each rolling mill top all is provided with fume exhaust hood, fume exhaust hood top is connected with oil mist collection pipeline, oil mist collection pipeline right side intercommunication is provided with oil dirt purification subassembly, the oil mist purification subassembly includes jar body, the jar body inside from left to right is provided with cooling assembly and filter assembly in proper order, is provided with the water inlet and water outlet of cooling assembly intercommunication on the jar body, and the exhaust main pipe is connected with the right side of jar body, exhaust main pipe far side from jar body is provided with exhaust component. The utility model can effectively reduce the oil mist that rolling mill working process produced is arranged to the workshop, reduces the physical health hazard to workshop staff, safe and reliable, and use effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of oil mist treatment equipment, specifically to an oil mist purification device for rolling mills. Background Technology

[0002] During rolling, deformation heat is generated due to the deformation of the workpiece. To remove this heat and ensure proper lubrication, rolling oil is used as a lubricating coolant, which helps improve the surface quality of the rolled workpiece. The rolling oil is continuously sprayed from nozzles onto the rolls and the rolled material. Due to the deformation heat, some of the rolling oil is atomized, commonly known as rolling oil mist. This mist is characterized by its large volume, low temperature, single pollutant, flammability, and high recyclability. Actual measurements show that the oil mist generated by the rolling mill has a temperature of 60–80℃ and a concentration of 150–250 mg / m³, indicating a large volume and high concentration. Existing oil mist treatment devices for rolling mills generally involve installing fans on top of the exhaust hood above the mill to directly discharge the oil mist generated during rolling outdoors. This not only causes environmental pollution but also harms the health of workshop workers. Summary of the Invention

[0003] To address the problem that existing oil mist treatment devices for rolling mills simply discharge oil mist directly outdoors via fans, causing environmental pollution and harming the health of workers, this utility model proposes an oil mist purification device for rolling mills. This device can effectively reduce the amount of oil mist generated during rolling mill operation that is discharged into the workshop, thereby reducing harm to the health of workshop workers. It is safe, reliable, and has good performance.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: An oil mist purification device for rolling mills includes several rolling mills installed in a workshop. Each rolling mill is equipped with a fume hood, and an oil mist collection pipeline is connected to the top of the fume hood. An oil mist purification component is connected to the right side of the oil mist collection pipeline. The oil mist purification component includes a tank, inside which a cooling component and a filtering component are arranged sequentially from left to right. The tank has an inlet and an outlet connected to the cooling component. An exhaust pipe is connected to the right side of the tank, and an exhaust component is installed on the side of the exhaust pipe away from the tank. The fume hood above each rolling mill collects the oil mist generated during the operation of the rolling mill. The oil mist enters the oil mist collection pipeline through the fume hood and is transported to the oil mist purification component. Inside the tank of the oil mist purification component, the cooling component first cools the oil mist, causing some of the oil in the oil mist to condense. The condensed oil is then collected and processed. Next, the filtering component further filters and purifies the cooled oil mist. Finally, the purified gas is discharged through the exhaust component in compliance with emission standards.

[0005] Furthermore, the cooling assembly includes a first water tank and a second water tank, respectively fixed to the inner wall of the tank body. The first water tank is connected to an inlet, and the second water tank is connected to an outlet. Two sets of heat exchange tubes are arranged between the first and second water tanks. Each set of heat exchange tubes includes multiple parallel water pipes spaced apart, and each water pipe has several spaced-apart fins. Cooling water enters the first water tank through the inlet and is then distributed to the two sets of heat exchange tubes between the first and second water tanks. The multiple water pipes and the fins on the water pipes in each set of heat exchange tubes increase the contact area with the oil mist. As the cooling water flows within the tubes, it absorbs heat from the oil mist, lowering the oil mist temperature and causing the oil to condense. The second water tank collects the cooled water after heat exchange and discharges it.

[0006] Furthermore, the oil mist collection pipeline includes a main oil mist collection pipe and oil mist collection branch pipes corresponding to and connected to each of the exhaust hoods. The oil mist collection branch pipes are all connected to the main oil mist collection pipe. The oil mist collection branch pipes are connected to each exhaust hood to collect the oil mist generated by each rolling mill, which is then collected and sent to the main oil mist collection pipe for unified delivery to the tank of the oil pollution purification component.

[0007] Furthermore, the tank body is provided with an air inlet and an air outlet at both ends, respectively. The air inlet is connected to the oil mist collection main pipe, and the air outlet is connected to the exhaust main pipe. The oil mist collected by the fume hood and transported by the oil mist collection pipeline enters the tank body through the air inlet; the gas, after being cooled by the cooling component and filtered and purified by the filter component inside the tank, enters the exhaust main pipe through the air outlet, and is then discharged outside the device through the exhaust component.

[0008] Furthermore, the exhaust assembly includes a fan and a chimney. The fan is mounted on the main exhaust pipe, and the chimney is connected to the right side of the main exhaust pipe. Through the suction action of the fan, the purified gas inside the tank is discharged through the exhaust pipe and then through the chimney, ensuring the flow and discharge of gas within the device.

[0009] Furthermore, the tank body includes a large-diameter section and a small-diameter section. An oil drain trough is connected to the bottom of the large-diameter section, and an oil collection chamber is located at the bottom of the oil drain trough. The large-diameter section provides ample space for oil mist diffusion and cooling, while the small-diameter section facilitates the installation of the filter assembly and the centralized filtration of oil mist. The oil drain trough and oil collection chamber collect the oil condensed by the cooling assembly for subsequent processing.

[0010] Furthermore, the filter assembly is located within the narrow section of the tank and includes two parallel, spaced-apart filter plates, with activated carbon blocks filling the space between the two filter plates. When oil mist passes through the two filter plates, the filter plates can intercept larger particulate impurities in the oil mist, thus performing preliminary filtration. Subsequently, the oil mist enters the activated carbon block area, where the activated carbon blocks, with their strong adsorption capacity, can adsorb tiny particles in the oil mist, further purifying it.

[0011] The beneficial effects of this utility model through the above technical solution are as follows: The oil mist purification device for rolling mills provided by this utility model collects the oil mist generated during the operation of each rolling mill by installing a fume hood above the mill. The oil mist enters the oil mist collection pipeline through the fume hood and is then transported to the oil purification component. Inside the tank of the oil purification component, the oil mist is first cooled by a cooling component, causing some of the oil in the oil mist to condense. The condensed oil is then collected and processed. Next, a filtration component further filters and purifies the cooled oil mist. Finally, the purified gas is discharged through an exhaust component in compliance with standards. This device effectively reduces the amount of oil mist generated during rolling mill operation that enters the workshop, reducing the health hazards to workshop workers. It is safe, reliable, and has good performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an oil mist purification device for a rolling mill according to the present invention; Figure 2 This utility model relates to an oil mist purification device for rolling mills. Figure 1 Schematic diagram of the cross section at point AA; Figure 3 This is a perspective view of the cooling component in the oil mist purification device for rolling mills according to this utility model. Figure 4 This is a schematic diagram of the filter component in an oil mist purification device for rolling mills according to this utility model.

[0013] The numbers in the attached diagram are: 1. Fume hood; 2. Tank body; 3. Water inlet; 4. Water outlet; 5. Main exhaust pipe; 6. Water tank one; 7. Water tank two; 8. Water pipe; 9. Fins; 10. Main oil mist collection pipe; 11. Branch oil mist collection pipe; 12. Air inlet; 13. Air outlet; 14. Fan; 15. Chimney; 16. Oil drain trough; 17. Oil collection bin; 18. Filter plate; 19. Activated carbon block. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4 As shown, this embodiment provides an oil mist purification device for rolling mills. The oil mist purification device for rolling mills includes several rolling mills installed in a workshop. Each rolling mill is equipped with a fume hood 1 above it. An oil mist collection pipe is connected to the top of the fume hood 1. An oil mist purification component is connected to the right side of the oil mist collection pipe. The oil mist purification component includes a tank 2. A cooling component and a filter component are arranged sequentially from left to right inside the tank 2. The tank 2 is provided with an inlet 3 and an outlet 4 connected to the cooling component. An exhaust pipe 5 is connected to the right side of the tank 2. An exhaust component is arranged on the side of the exhaust pipe 5 away from the tank 2.

[0015] The oil mist purification device for rolling mills provided by this utility model collects the oil mist generated during the operation of each rolling mill by installing a fume hood 1 above the rolling mill. The oil mist enters the oil mist collection pipeline through the fume hood 1 and is transported to the oil pollution purification component. In the tank 2 of the oil pollution purification component, the oil mist is first cooled by the cooling component, causing some of the oil in the oil mist to condense. The condensed oil is then collected and processed. Next, the filtration component further filters and purifies the cooled oil mist. Finally, the purified gas is discharged through the exhaust component in compliance with standards.

[0016] Please refer to this again. Figure 3 The cooling assembly includes a first water tank 6 and a second water tank 7, respectively fixed to the inner wall of the tank body 2. The first water tank 6 is connected to the inlet 3, and the second water tank 7 is connected to the outlet 4. Two sets of heat exchange tubes are arranged between the first water tank 6 and the second water tank 7. Each set of heat exchange tubes includes multiple parallel water pipes 8 arranged at intervals, and several spaced fins 9 are provided on the water pipes 8. Cooling water enters the first water tank 6 from the inlet 3 and is then distributed to the two sets of heat exchange tubes between the first water tank 6 and the second water tank 7. The multiple water pipes 8 and the fins 9 on the water pipes 8 in each set of heat exchange tubes increase the contact area with the oil mist. During the flow of the cooling water in the tubes, the cooling water absorbs the heat of the oil mist, thereby lowering the temperature of the oil mist and causing the oil to condense. The second water tank 7 collects the cooled water after heat exchange and discharges it.

[0017] In this embodiment, the oil mist collection pipeline includes a main oil mist collection pipe 10 and oil mist collection branch pipes 11 corresponding to and connected to each of the exhaust hoods 1. Each oil mist collection branch pipe 11 is connected to the main oil mist collection pipe 10. The branch pipes 11, connected to each exhaust hood 1, collect the oil mist generated by each rolling mill, then collect it and send it to the main oil mist collection pipe 10, which then uniformly transports it to the tank 2 of the oil purification component, thus achieving centralized collection and transportation of the oil mist.

[0018] Specifically, the tank body 2 is provided with an air inlet 12 and an air outlet 13 at both ends. The air inlet 12 is connected to the oil mist collection main pipe 10, and the air outlet 13 is connected to the exhaust main pipe 5. The oil mist collected by the fume hood 1 and transported by the oil mist collection pipeline enters the interior of the tank body 2 through the air inlet 12. The gas, after being cooled by the cooling component and filtered and purified by the filter component inside the tank body 2, enters the exhaust main pipe 5 through the air outlet 13, and is then discharged outside the device through the exhaust component.

[0019] In this embodiment, the exhaust assembly includes a fan 14 and a chimney 15. The fan 14 is mounted on the exhaust main pipe 5, and the chimney 15 is connected to the right side of the exhaust main pipe 5. The fan 14, mounted on the exhaust main pipe 5, draws in the purified gas inside the tank 2 through the exhaust main pipe 5 and discharges it through the chimney 15, ensuring the flow and discharge of gas within the device.

[0020] In this embodiment, the tank 2 includes a large-diameter section and a small-diameter section. An oil drain trough 16 is connected to the bottom of the large-diameter section of the tank 2, and an oil collection chamber 17 is located at the bottom of the oil drain trough 16. The large-diameter section of the tank 2 provides ample space for the diffusion and cooling of oil mist, while the small-diameter section facilitates the installation of the filter assembly and the centralized filtration of oil mist. The oil drain trough 16 and the oil collection chamber 17 collect the oil condensed by the cooling assembly for subsequent processing.

[0021] Please refer to this again. Figure 4 The filter assembly is located within the narrow section of the tank body. The filter assembly includes two parallel, spaced-apart filter plates 18, with activated carbon blocks 19 filling the space between the two filter plates 18. The two filter plates 18 can intercept larger particulate impurities in the oil mist, while the activated carbon blocks 19 have an adsorption function, capable of adsorbing tiny particles, odors, and other harmful substances in the oil mist, further purifying the gas.

[0022] The working principle of this utility model is as follows: Inside the workshop, the rolling mill generates oil mist during operation. Each rolling mill is equipped with an exhaust hood 1, which collects the oil mist promptly. The oil mist collection pipeline consists of a main oil mist collection pipe 10 and corresponding branch oil mist collection pipes 11 connected to each exhaust hood 1. Each branch oil mist collection pipe 11 collects the oil mist from each rolling mill exhaust hood 1 and brings it to the main oil mist collection pipe 10, achieving centralized collection of the oil mist.

[0023] The collected oil mist enters the interior of tank 2 of the oil purification component through the air inlet 12. Cooling components are arranged sequentially from left to right inside tank 2. Water tank 6 in the cooling component is connected to water inlet 3. Cooling water enters water tank 6 through water inlet 3 and is distributed to two sets of heat exchange tubes between water tank 6 and water tank 7. Each set of heat exchange tubes contains multiple parallel water pipes 8 spaced apart, and each water pipe 8 has several spaced fins 9. The water pipes 8 and fins 9 increase the contact area with the oil mist. As the cooling water flows within the pipes, it continuously absorbs heat from the oil mist, causing the oil mist temperature to decrease and some of the oil to condense. Meanwhile, the oil that condenses during the cooling stage flows down the inner wall of the tank 2 into the oil drain trough 16, which is connected to the bottom of the large-diameter section of the tank body 2. The oil drain trough 16 has an oil collection chamber 17 at its bottom. This condensed oil is then collected in the oil collection chamber 17 for subsequent processing. Water tank 2 7 collects the cooling water after heat exchange and discharges it through the outlet 4, completing the oil mist cooling process.

[0024] The cooled oil mist continues to flow to the right within tank 2, entering the area where the filter assembly is located. The filter assembly, situated within the narrow section of tank 2, consists of two parallel, spaced-apart filter plates 18, with activated carbon blocks 19 filling the space between them. When the oil mist passes through the filter plates 18, the plates intercept larger particles, providing initial filtration. Subsequently, the oil mist enters the activated carbon block area. The activated carbon blocks 19, with their strong adsorption capacity, adsorb tiny particles from the oil mist, further purifying it.

[0025] After cooling and filtration, the gas enters the exhaust pipe 5 through the outlet 13 of the tank 2. The fan 14 in the exhaust assembly is installed on the exhaust pipe 5. Through the suction action of the fan 14, the purified gas in the tank 2 is discharged from the chimney 15 through the exhaust pipe 5 in compliance with standards.

[0026] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An oil mist purification device for rolling mills, comprising several rolling mills installed in a workshop, each of which is equipped with a fume hood (1), characterized in that, An oil mist collection pipe is connected above the exhaust hood (1), and an oil pollution purification component is connected to the right side of the oil mist collection pipe; the oil mist purification component includes a tank (2), and a cooling component and a filter component are arranged in sequence from left to right inside the tank (2). The tank (2) is provided with an inlet (3) and an outlet (4) connected to the cooling component. An exhaust pipe (5) is connected to the right side of the tank (2), and an exhaust component is arranged on the side of the exhaust pipe (5) away from the tank (2).

2. The oil mist purification device for rolling mills according to claim 1, characterized in that, The cooling assembly includes a water tank 1 (6) and a water tank 2 (7) fixed to the inner wall of the tank body (2). The water tank 1 (6) is connected to the water inlet (3), and the water tank 2 (7) is connected to the water outlet (4). Two sets of heat exchange tubes are provided between the water tank 1 (6) and the water tank 2 (7). Each set of heat exchange tubes includes multiple parallel water pipes (8) arranged at intervals. Several fins (9) are arranged at intervals on the water pipes (8).

3. The oil mist purification device for rolling mills according to claim 1, characterized in that, The oil mist collection pipeline includes an oil mist collection main pipe (10) and oil mist collection branch pipes (11) that are connected to each of the exhaust hoods (1). The oil mist collection branch pipes (11) are all connected to the oil mist collection main pipe (10).

4. The oil mist purification device for rolling mills according to claim 3, characterized in that, The tank (2) is provided with an air inlet (12) and an air outlet (13) at both ends. The air inlet (12) is connected to the oil mist collection main pipe (10), and the air outlet (13) is connected to the exhaust main pipe (5).

5. The oil mist purification device for rolling mills according to claim 1, characterized in that, The exhaust assembly includes a fan (14) and a chimney (15), the fan (14) being mounted on the exhaust pipe (5), and the chimney (15) being mounted on the right side of the exhaust pipe (5).

6. The oil mist purification device for rolling mills according to claim 1, characterized in that, The tank (2) includes a large diameter section and a small diameter section. The bottom of the large diameter section of the tank (2) is connected to an oil drain trough (16), and the bottom of the oil drain trough (16) is provided with an oil collection tank (17).

7. The oil mist purification device for rolling mills according to claim 6, characterized in that, The filter assembly is located in the small diameter section of the tank (2). The filter assembly includes two parallel filter plates (18) with activated carbon blocks (19) filling the space between the two filter plates (18).

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