Oil mist recovery device for cold rolling machine

Abstract

The utility model provides a cold rolling machine oil mist recovery device which comprises a pipeline and a plurality of oil mist recovery partition plates fixed in the pipeline, oil mist enters and exits through the pipeline, and the oil mist recovery partition plates are used for absorbing and cooling the oil mist. The oil mist recovery partition plate comprises a hollow partition plate body and a liquid cooling pipe contained and fixed in the partition plate body, the partition plate body is fixed in the pipeline, and the two ends of the liquid cooling pipe penetrate through the pipeline to be connected with an external cooling water circulation system. Compared with the prior art, the cold rolling machine oil mist recovery device is low in operation cost and easy to maintain, the oil mist recovery capacity is greatly improved, the production cost is reduced, meanwhile, volatile matter in oil mist is effectively absorbed, and pollution is reduced.

Description

Technical Field

[0001] The utility model is applicable to the field of aluminum processing rolling, and particularly relates to an oil mist recovery device for a cold rolling mill. Background Art

[0002] The rolling oil used by a cold rolling mill during the rolling process has the functions of lubrication, cooling, and cleaning. However, a part of the rolling oil will be carried away with the surface of the rolled piece or lost due to high-temperature evaporation, resulting in an increase in the consumption of the rolling oil and the use cost. Since it is difficult to control the part of the rolling oil consumed with the rolled piece, the rolling oil lost due to high-temperature evaporation can be recycled. Therefore, the existing cold rolling mills often set up a frame, a top cover of the rolling mill, an oil extraction fan, and an oil mist pipeline in the main body of the cold rolling mill to form an oil mist recovery device, so as to suck the rolling oil volatilized during the rolling process into the oil mist pipeline through the fan for centralized treatment. The rolling oil mist is led to the oil mist pipeline through the fan. As the pipeline extends and the rolling oil cools in the pipeline, rolling oil beads are formed on the pipeline wall, and the rolling oil formed by the beads flows to the pipeline return groove to complete the recovery.

[0003] However, due to the influence of many conditions, most of the current oil mist recovery devices cannot completely form oil beads in the pipeline for the rolling oil mist to be recovered. Part of the rolling oil continues to be lost in the form of oil mist and discharged into the air, which is particularly obvious in high-temperature seasons. This not only results in a low recovery rate and an increase in operating costs, but also causes certain pollution to the air and affects the environment. At the same time, when the number of cold rolling mills is large enough, an oil mist recovery tower is often used to achieve secondary recovery of the oil mist. Although zero emission can be achieved, its recovery rate is low and the cost is high.

[0004] Therefore, there is an urgent need for a new oil mist recovery device for a cold rolling mill to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides an oil mist recovery device for a cold rolling mill, aiming to improve the recovery efficiency of the oil mist of the cold rolling mill and reduce the recovery cost of the oil mist of the cold rolling mill.

[0006] The utility model provides an oil mist recovery device for a cold rolling mill. The oil mist recovery device for a cold rolling mill includes a pipeline and a plurality of oil mist recovery partitions fixed in the pipeline and arranged at intervals along the length direction of the pipeline. The plurality of oil mist recovery partitions include a plurality of first partitions fixed on the top surface of the pipeline and extending towards the bottom surface of the pipeline, and a plurality of second partitions fixed on the bottom surface of the pipeline and extending towards the top surface of the pipeline. The first partitions are spaced from the bottom surface of the pipeline, the second partitions are spaced from the top surface of the pipeline, and the plurality of first partitions and the plurality of second partitions are arranged in an alternating manner; the oil mist recovery partitions are used for absorbing and cooling the oil mist entering the pipeline.

[0007] Each of the oil mist recovery partitions includes a partition body in a hollow shape and a liquid cooling pipe housed and fixed within the partition body. The partition body is fixed within the pipeline, and the liquid cooling pipe extends along the partition body, with both ends of the liquid cooling pipe penetrating through the pipeline for connection to an external cooling water circulation system.

[0008] Preferably, the liquid cooling pipes disposed within two adjacent partition bodies are connected end to end.

[0009] Preferably, the liquid cooling pipe disposed within the partition body has a non-linear structure.

[0010] Preferably, the liquid cooling pipe disposed within the partition body has a multi-segment S-shaped structure connected in sequence.

[0011] Preferably, the pipeline includes a pipeline body, a pipeline inlet and a pipeline outlet respectively extending axially outward from both ends of the pipeline body. The oil mist recovery partition is fixed within the pipeline body; wherein, the diameters of the pipeline inlet and the pipeline outlet are both smaller than the diameter of the pipeline body.

[0012] Preferably, the partition body is made of felt material.

[0013] Preferably, the liquid cooling pipe is of an integral structure.

[0014] Preferably, the liquid cooling pipe is made of copper.

[0015] Compared with the prior art, the present utility model uses a pipeline and multiple oil mist recovery partitions fixed within the pipeline. The oil mist enters and exits through the pipeline, and the oil mist recovery partitions are used to absorb and cool the oil mist; the oil mist recovery partition includes a partition body in a hollow shape and a liquid cooling pipe housed and fixed within the partition body. The partition body is fixed within the pipeline, and both ends of the liquid cooling pipe penetrate through the pipeline to be connected to an external cooling water circulation system. In this way, the cold rolling mill oil mist recovery device provided by the present utility model has a low operating cost and simple maintenance, greatly improves the oil mist recovery ability, reduces the production cost, effectively absorbs the volatile substances in the oil mist, and reduces pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be described in detail below with reference to the drawings. Through the detailed description in combination with the following drawings, the above or other aspects of the present utility model will become clearer and easier to understand. In the drawings:

[0017] Figure 1 is a top view of the cold rolling mill oil mist recovery device provided by an embodiment of the present utility model;

[0018] Figure 2 is a front view of the cold rolling mill oil mist recovery device provided by an embodiment of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of an oil mist recovery partition provided by an embodiment of the present utility model.

[0020] In the figure, 100 is a cold rolling machine oil mist recovery device, 1 is a pipeline, 11 is a pipeline body, 12 is a pipeline inlet, 13 is a pipeline outlet, 2 is an oil mist recovery partition, 21 is a partition body, 22 is a liquid cooling pipe, 23 is a first partition, 24 is a second partition, 3 is a cooling water inlet, and 4 is a cooling water outlet. Specific embodiments

[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Please refer to Figures 1 - 3 , the present utility model provides a cold rolling machine oil mist recovery device 100. The cold rolling machine oil mist recovery device 100 includes a pipeline 1 and a plurality of oil mist recovery partitions 2 fixed in the pipeline 1 and arranged at intervals along the length direction of the pipeline 1. The plurality of oil mist recovery partitions 2 include a plurality of first partitions 23 fixed to the top surface of the pipeline 1 and extending towards the bottom surface of the pipeline 1, and a plurality of second partitions 24 fixed to the bottom surface of the pipeline 1 and extending towards the top surface of the pipeline 1. The first partition 23 is spaced from the bottom surface of the pipeline 1, the second partition 24 is spaced from the top surface of the pipeline 1, and the plurality of first partitions 23 and the plurality of second partitions 24 are arranged in an alternating manner; the oil mist recovery partition 2 is used to absorb and cool the oil mist entering the pipeline 1. Further, the first partition 23 and the second partition 24 are fixed to the top surface and the bottom surface of the pipeline 1 only to illustrate that the first partition 23 and the second partition 24 are oppositely arranged, and the interval between the first partition 23 and the pipeline 1 is also oppositely arranged with the interval between the second partition 24 and the pipeline 1; the first partition 23 and the second partition 24 can be oppositely arranged in any direction in the pipeline 1, and a meandering channel formed in this way can absorb the oil mist to the greatest extent.

[0023] Each oil mist recovery partition 2 includes a hollow partition body 21 and a liquid cooling pipe 22 received and fixed in the partition body 21. The partition body 21 is fixed in the pipeline 1, the liquid cooling pipe 22 extends along the partition body 21, and both ends of the liquid cooling pipe 22 penetrate the pipeline 1 for connection with an external cooling water circulation system.

[0024] Specifically, multiple oil mist recovery partitions 2 form a meandering baffle. When the oil mist passes through the pipeline 1, it will adhere to the oil mist recovery partition 2. At the same time, since the liquid cooling pipe 22 is connected to the external cooling water circulation system to control the temperature inside the pipeline 1, the temperature of the oil mist can be reduced. When the temperature of the oil mist drops, it will liquefy into oil beads and gradually drip into the return groove of the pipeline 1, realizing the recovery of the oil mist.

[0025] By installing multiple first partitions 23 and second partitions 24 at preset positions inside the pipeline 1 to form a meandering channel like a maze, when the oil mist passes through the pipeline 1, it is affected by the resistance from the oil mist recovery partition 2 at different angles, enabling the oil mist to better adhere to the oil mist recovery partition 2.

[0026] In this embodiment, the liquid cooling pipes 22 arranged inside two adjacent partition bodies 21 are connected end to end to form a cooling water flow channel, as Figure 1 and Figure 2 shown. The external cooling water flows through the cooling water inlets 3 and cooling water outlets 4 at both ends of the cooling water flow channel, effectively improving the circulation efficiency of the external cooling water circulation system in the liquid cooling pipe 22.

[0027] In this embodiment, the liquid cooling pipe 22 is fixed inside the partition body 21 in a non-linear structure, making the length of the liquid cooling pipe 22 inside the partition body 21 longer and effectively improving the cooling efficiency of the oil mist.

[0028] In this embodiment, the liquid cooling pipe 22 arranged inside the partition body 21 is in an S-shaped structure connected in multiple segments in sequence, making the length of the liquid cooling pipe 22 inside the partition body 21 longer and effectively improving the cooling efficiency of the oil mist.

[0029] In this embodiment, the pipeline 1 includes a pipeline body 11, a pipeline inlet 12 and a pipeline outlet 13 respectively extending axially outward from both ends of the pipeline body 11. The oil mist recovery partition 2 is fixed inside the pipeline body 11; wherein, the diameters of both the pipeline inlet 12 and the pipeline outlet 13 are smaller than the diameter of the pipeline body 11. This effectively limits the speed of the oil mist when entering and leaving the pipeline 1 and improves the absorption and cooling efficiency by the oil mist recovery partition 2 inside the pipeline 1.

[0030] In this embodiment, the partition body 21 is made of felt material, which can effectively absorb particulate matters such as aluminum powder in the oil mist, effectively preventing particulate matters of inorganic compound types such as aluminum powder from flowing into the atmosphere and causing pollution.

[0031] In this embodiment, the liquid cooling pipe 22 is of an integral structure.

[0032] In this embodiment, the liquid cooling pipe 22 is a copper pipe, which can better absorb the heat of the oil mist to quickly cool the oil mist.

[0033] Compared with the prior art, the utility model includes a pipeline and a plurality of oil mist recovery partitions fixed in the pipeline. The oil mist enters and exits through the pipeline, and the oil mist recovery partitions are used to absorb and cool the oil mist. The oil mist recovery partition includes a hollow partition body and a liquid cooling pipe housed and fixed in the partition body. The partition body is fixed in the pipeline, and both ends of the liquid cooling pipe penetrate the pipeline and are connected to an external cooling water circulation system. In this way, the cold rolling oil mist recovery device provided by the utility model has low operating cost and simple maintenance, greatly improves the oil mist recovery ability, reduces the production cost, effectively absorbs the volatile substances in the oil mist, and reduces the pollution.

[0034] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitations, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0035] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. What is disclosed is only the preferred embodiments of the present utility model. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can make many equivalent changes in form without departing from the purpose of the present utility model and the scope protected by the claims, and all of them belong to the protection scope of the present utility model.

Claims

1. A cold rolling mill oil mist recovery device, characterized in that: The cold rolling mill oil mist recovery device comprises a pipeline and a plurality of oil mist recovery baffles fixed in the pipeline and arranged at intervals along the length direction of the pipeline, the plurality of oil mist recovery baffles comprise a plurality of first baffles fixed on the top surface of the pipeline and extending toward the bottom surface of the pipeline, and a plurality of second baffles fixed on the bottom surface of the pipeline and extending toward the top surface of the pipeline, the first baffles are spaced from the bottom surface of the pipeline, the second baffles are spaced from the top surface of the pipeline, and the plurality of first baffles and the plurality of second baffles are arranged in a staggered manner; the oil mist recovery baffles are used to absorb and cool the oil mist entering the pipeline; Each of the oil mist recovery baffles includes a hollow baffle body and a liquid cooling pipe accommodated and fixed in the baffle body. The baffle body is fixed in the pipe. The liquid cooling pipe extends along the baffle body, and both ends of the liquid cooling pipe pass through the pipe for connection with an external cooling water circulation system.

2. The cold rolling mill oil mist recovery device according to claim 1, characterized in that: The liquid cooling tubes arranged in two adjacent partition bodies are connected end to end.

3. The oil mist recovery device for a cold rolling mill according to claim 1, characterized in that: The liquid cooling pipe arranged in the partition body has a non-linear structure.

4. The cold rolling mill oil mist recovery device according to claim 3, characterized in that: The liquid cooling pipe arranged in the partition body is in an S-shaped structure with multiple sections connected in sequence.

5. The cold rolling mill oil mist recovery device according to claim 1, characterized in that: The pipeline includes a pipeline body, a pipeline inlet and a pipeline outlet formed by two ends of the pipeline body extending outward along the axial direction of the pipeline body respectively, and the oil mist recovery baffle is fixed in the pipeline body; wherein the diameter of the pipeline inlet and the diameter of the pipeline outlet are both smaller than the diameter of the pipeline body.

6. The cold rolling mill oil mist recovery device according to claim 1, characterized in that: The partition body is made of felt.

7. The oil mist recovery device for a cold rolling mill according to claim 2, characterized in that: The liquid cooling tube is an integral structure.

8. The cold rolling mill oil mist recovery device according to claim 1, characterized in that: The liquid cooling tube is a copper tube.

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