Oil mist purification device for oiling machine

Abstract

The invention discloses an oil mist purification device for an oiling machine, which comprises an air suction cover A. One end of the air suction cover A is provided with a main air cover flange, the lower end of the main air cover flange is provided with a side suction pipeline flange, one side of the side suction pipeline flange is provided with a transition box, and the lower ends of two connecting plates are respectively provided with an operation side suction pipeline and a transmission side suction pipeline. A side suction port is formed in the upper end of the operation side suction pipeline; the pore plate I and the pore plate II are arranged in the air suction cover A; a hose is arranged at one end of the oil mist purification modified connector, a pipeline is arranged at the other end of the hose, and an air suction cover B is arranged on the other side of the pipeline. Compared with the prior art, the oil mist purification device has the advantage that oil mist generated by the oiling machine can be purified.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist purification, in particular to an oil mist purification device for an oil coating machine. Background Art

[0002] The DOS oil electrostatic oiling device of the cold rolling mill rewinding unit adopts a horizontal layout designed by GFG Peabody (i.e., No. 1 oiling machine). The electrostatic oiling system uses a turbine rotary sprayer and a high-voltage electrostatic generator to achieve accurate and uniform DOS oil coating on the surface of the steel strip, and the single-sided oiling amount is controlled at 10-30 mg / m2. At present, during the use of the DOS oiling machine, the oil mist in the oiling chamber overflows due to design defects: ① The oiling machine is arranged horizontally; ② The outlet roller system is open-loop; ③ The original external equipment has insufficient mist extraction capacity; ④ The original external filtration system has poor purification effect. As a result, the rewinding unit has heavy oil mist and a poor working environment.

[0003] Affected by aerodynamics during the compressed air atomization process, the strip moves at high speed (maximum speed can reach 550 meters / minute) and brings the oil mist out of the oiling chamber, causing the oil mist to diffuse in the oiling machine area. After the oil mist cools, it forms oil droplets on nearby steel structures, which accumulate and drip on the surface of the exit rollers and strips, easily causing batch quality defects of tin-plated (cold-rolled steel sheets) products. In addition, the semi-enclosed production line will be completely filled with oil mist in an instant, which will cause extreme discomfort and serious health effects to the workers on site. The oil mist environment will also affect the line of sight, causing serious and realistic safety hazards to the on-site operators.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide an oil mist purification device for an oil coating machine, which can purify the oil mist generated by the oil coating machine.

[0006] In order to solve the above problems, the technical solution of the present invention is: an oil mist purification device for an oil coating machine, comprising:

[0007] Suction hood A, one end of the suction hood A is provided with a main hood flange, the lower end of the main hood flange is provided with a side suction pipeline flange, one side of the side suction pipeline flange is provided with a transition box, the lower ends of the two connecting plates are respectively provided with an operating side suction pipeline and a transmission side suction pipeline, and the upper end of the operating side suction pipeline is provided with a side suction port;

[0008] Orifice plate 1 and orifice plate 2, wherein the orifice plate 1 and orifice plate 2 are arranged inside the air suction hood A;

[0009] Oil mist purification retrofit interface, one end of the oil mist purification retrofit interface is provided with a hose, the other end of the hose is provided with a pipeline, and the other side of the pipeline is provided with an air suction hood B.

[0010] Furthermore, both ends of the air suction hood A are provided with connecting plates, the lower end of the connecting plates is provided with a cross plate of the air suction hood A, both ends of the outside of the air suction hood A are provided with welding plates I, and one side of the welding plates I is provided with a welding plate bracket I.

[0011] Furthermore, one end of the side suction port is provided with a baffle I, one end of the side suction port is provided with a baffle II, and the lower end is provided with a baffle III.

[0012] Furthermore, the upper end of the orifice plate I is provided with an orifice plate bracket I, the upper end of the orifice plate II is provided with an orifice plate bracket II, and the lower ends of the orifice plate I and the orifice plate II are provided with a plate support I.

[0013] The advantages of the present invention compared with the existing technology are as follows:

[0014] (1) The present invention captures oil mist at three points, one point on each side and one point below as the main capture point. The three capture points converge in the right-side box body, and a manual valve oil drain port is arranged below the box body. After two weeks of on-machine testing, there is no oil stain on the transparent acrylic board, indicating that the oil mist has not spilled out at all. The function of the oil mist baffle is to block the oil mist flying forward in the side space, and it also plays a role in blocking and guiding the oil mist. The presence of the oil mist baffle enables the lower capture point to capture the oil mist more efficiently.

[0015] (2) Nylon orifice plates are arranged at the suction port positions, and the air suction hoods at two points are each equipped with an oil mist purifier, and the oil mist purifier is an electrostatic adsorption type. Drain ports are arranged directly below both of the two oil mist purifiers, and are introduced into the oil collection box directly below with hoses. An oil pump is additionally installed on the equipment support of the oil mist purifier, and a liquid level switch is installed in the oil collection box. When the liquid level reaches the set position, the oil pump is started, and the oil is pumped into the on-site waste oil barrel for unified treatment. There are no consumable parts in the later stage, and only the electrostatic field needs to be cleaned regularly.

[0016] (3) The oil mist purification device is an electrostatic adsorption type oil mist purifier, and the discharged oil mist after purification: ≤1mg / m 3 , far lower than the concentration limit requirements of unorganized emissions for existing and newly built enterprises stipulated in the "Emission Standard of Pollutants for Steel Rolling - Atmosphere" (GB28665 - 2012), and the limit of 5mg / m 3 for the steel coil finishing unit Description of the Drawings

[0017] Figure 1 is the first point oil suction structure diagram of an oil mist purification device for an oiling machine of the present invention.

[0018] Figure 2 is an oil mist purification device for an oiling machine of the present invention Figure 1Central side suction interface assembly diagram.

[0019] Figure 3 It is the Figure 1 top view of an oil mist purification device for an oiling machine of the present invention.

[0020] Figure 4 It is the second oil suction structure of an oil mist purification device for an oiling machine of the present invention Figure 1 .

[0021] Figure 5 It is the second oil suction structure of an oil mist purification device for an oiling machine of the present invention Figure 2 .

[0022] As shown in the figure: 1. Suction hood A; 2. Connecting plate; 3. Horizontal plate of suction hood A; 4. Orifice plate one; 5. Orifice plate two; 6. Orifice plate support one; 7. Orifice plate support two; 8. Welding plate one; 9. Welding plate support one; 10. Main hood flange; 11. Plate support one; 12. Side suction pipeline flange; 13. Transition box; 14. Operating side side suction pipeline; 15. Driving side side suction pipeline; 16. Side suction port; 17. Baffle one; 18. Baffle two; 19. Baffle three. Specific implementation manners

[0023] The following further illustrates the specific implementation manners of the present invention with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0024] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0025] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] Embodiment 1

[0027] As Figure 1 shown in FIG. - to FIG., an oil mist purification device for an oiling machine includes a suction hood A1. Connecting plates 2 are installed at both ends of the suction hood A1. A horizontal plate 3 of the suction hood A is installed at the lower end of the connecting plate 2. Welding plates one 8 are installed at both outer ends of the suction hood A1. A welding plate support one 9 is installed on one side of the welding plate one 8.

[0028] One end of the suction hood A1 is installed with the main hood flange 10. The lower end of the main hood flange 10 is installed with the side suction pipeline flange 12. One side of the side suction pipeline flange 12 is installed with the transition box 13. The lower ends of the two connecting plates 2 are respectively installed with the operating side side suction pipeline 14 and the driving side side suction pipeline 15. The upper end of the operating side side suction pipeline 14 is installed with the side suction port 16. One end of the side suction port 16 is installed with the baffle one 17, one end of the side suction port 16 is installed with the baffle two 18, and the lower end is installed with the baffle three 19.

[0029] The orifice plate one 4 and the orifice plate two 5 are arranged inside the suction hood A1. The upper end of the orifice plate one 4 is installed with the orifice plate support one 6, the upper end of the orifice plate two 5 is installed with the orifice plate support two 7, and the lower ends of the orifice plate one 4 and the orifice plate two 5 are installed with the plate brace one 11.

[0030] The oil mist purification modification interface 30, one end of the oil mist purification modification interface 30 is installed with a hose, the other end of the hose 30 is installed with a pipeline, and the other side of the pipeline is installed with the suction hood B.

[0031] As Figures 1-3 shown, the oil mist is captured by three points, one point on each side, and the lower point is the main capture point. To avoid the accumulation of oil mist and formation of dripping, no capture point is set above. The three capture points converge in the right box body, and a hand valve oil drain port is set below the box body. After two weeks of on-machine testing, there is no oil stain on the transparent acrylic plate, indicating that the oil mist has not spilled out at all. The function of the oil mist baffle is to block the oil mist flying forward in the side space, and it also plays a role in blocking and guiding the oil mist. The existence of the oil mist baffle enables the lower capture point to capture the oil mist more efficiently. A large amount of oil mist slides down on the oil mist baffle, which also directly shows the importance of this detail in this system.

[0032] A nylon orifice plate is set at the suction port position, and the flow area is calculated according to the wind force. (This is a suction adjustment point, and the other suction adjustment point is the motor frequency conversion control).

[0033] As Figures 4-5 shown, the suction port is only set directly below the strip steel. For the efficient use of suction, it is divided into two suction ports on the left and right. Each of the two-point suction hoods is separately equipped with an oil mist purifier. This oil mist purifier is an electrostatic adsorption type with a power of 3.0 kw and frequency conversion control. Drainage ports are provided directly below both oil mist purifiers and are introduced into the oil collection box directly below with hoses. An oil pump is additionally installed on the equipment support of the oil mist purifier, and the oil collection box is equipped with a liquid level switch. When the liquid level reaches the set position, the oil pump starts and pumps the oil to the on-site waste oil barrel for unified treatment. There are no consumable parts in the later stage, and only the electrostatic field needs to be cleaned regularly. The on-site maintenance is convenient.

[0034] All the electrical components appearing in this article are electrically connected to the external main controller and the 220V mains power supply. The main controller can be a conventional known device such as a computer for control. In the specific implementation manners of the present disclosure, the detailed descriptions of known functions and known components are omitted. To ensure the compatibility of the device, the operation means adopted are consistent with the parameters of market instruments.

[0035] The above description has been made on the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention creation, design structurally similar ways and embodiments to this technical solution without creativity, they shall fall within the protection scope of the present invention.

Claims

1. An oil mist purification device for an oil coating machine, characterized in that: include: A suction hood A (1), wherein one end of the suction hood A (1) is provided with a main hood flange (10), the lower end of the main hood flange (10) is provided with a side suction pipeline flange (12), one side of the side suction pipeline flange (12) is provided with a transition box (13), the lower ends of the two connecting plates (2) are respectively provided with an operating side suction pipeline (14) and a transmission side suction pipeline (15), and the upper end of the operating side suction pipeline (14) is provided with a side suction port (16); Orifice plate 1 (4) and orifice plate 2 (5), wherein the orifice plate 1 (4) and orifice plate 2 (5) are arranged inside the air suction hood A (1); An oil mist purification interface (30) is provided with a hose at one end of the oil mist purification interface (30), a pipeline is provided at the other end of the hose (30), and an air suction hood B is provided on the other side of the pipeline.

2. The oil mist purification device for an oil coating machine according to claim 1, characterized in that: The two ends of the air suction hood A (1) are provided with connecting plates (2), the lower end of the connecting plate (2) is provided with a transverse plate (3) of the air suction hood A, the two ends of the outer side of the air suction hood A (1) are provided with welding plates one (8), and one side of the welding plate one (8) is provided with a welding plate bracket one (9).

3. The oil mist purification device for an oil coating machine according to claim 1, characterized in that: A baffle plate 1 (17) is provided at one end of the side suction port (16), a baffle plate 2 (18) is provided at one end of the side suction port (16), and a baffle plate 3 (19) is provided at the lower end.

4. The oil mist purification device for an oil coating machine according to claim 1, characterized in that: The upper end of the orifice plate 1 (4) is provided with an orifice plate bracket 1 (6), the upper end of the orifice plate 2 (5) is provided with an orifice plate bracket 2 (7), and the lower ends of the orifice plate 1 (4) and the orifice plate 2 (5) are provided with a plate support 1 (11).

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