Magnetic bar surface deoiling device of cold rolling emulsion system

Abstract

The utility model belongs to the technical field of cold rolling emulsion system equipment, and provides a magnetic bar surface deoiling device of a cold rolling emulsion system, which comprises an emulsion box body, a magnetic bar, a compressed air coil pipe, a pneumatic valve and an air compressor, a plurality of exhaust holes are uniformly formed in the compressed air coil pipe, and the air compressor is arranged outside the emulsion box body and is connected with the compressed air coil pipe through a compressed air pipeline; according to the utility model, air is blown to the magnetic bar from the interior of the emulsion, so that rolling oil adhered to the surface of the emulsion magnetic bar filter is effectively cleaned, the problem that the rolling oil is wasted while iron powder is removed by the emulsion magnetic bar filter is intelligently and efficiently solved, the increase of the consumption of the emulsion is avoided, and the quality of the emulsion and the plate surface is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cold-rolled emulsion system equipment technical field relates to cold-rolled emulsion system magnetism filter magnetism stick surface deoiling, and specifically relates to a kind of cold-rolled emulsion system magnetism stick surface deoiling device. BACKGROUND

[0002] The production process of cold-rolled strip is generally: hot-rolled strip-pickling-cold rolling-annealing-leveling-tension straightening-recoiling-packaging.Cold rolling mill rolling is the necessary process of cold-rolled strip production, and the main role is that strip is directly rolled in room temperature without heating, to ensure that one of the most important conditions of cold rolling is rolling oil, also known as emulsion.The main functions of emulsion are: reducing the friction coefficient and friction force on the contact arc of deformation zone, ensuring the stability of rolling process, improving the quality of strip steel;②It has lubricating and cooling effect on the workpiece and roller, removes the heat generated during rolling process, reduces the wear of roller and ensures the normal working condition of roller;③It improves production efficiency, saves energy and roll consumption;④It forms oil film on the surface of workpiece, which has certain rust-proof effect.According to relevant data: taking steel production as an example, after adopting rolling process lubrication, energy consumption per ton of steel can be reduced by 5%-10%, metal loss can be reduced by 5%-10%, and surface defect rate can be reduced by 30%-50%.

[0003] Because the pickling process cannot clean the surface of hot-rolled coil, iron powder will increase excessively during the rolling process of cold rolling mill.If the iron powder in emulsion is too high, it will increase the amount of iron powder on the surface of strip steel and reduce the cleanliness of plate surface.These iron powder remaining on the surface of strip steel will affect the cleanliness after annealing, and it is not easy to volatilize during annealing process, which will form carbon deposition on the surface of strip steel after annealing, and the carbon deposition once formed will be difficult to remove, affecting the quality of finished product.The iron powder in emulsion is controlled by magnetic rod filter in circulating tank.The magnetic rod filter uses high-performance permanent magnet as magnetic source to form a strong magnetic field around the magnetic rod, which adsorbs iron powder and other particles in the emulsion of cold rolling mill.The equipment is composed of several permanent magnetic rods, and the permanent magnetic rods are connected in series by chain in parallel, and the rotation of chain drives the rotation of magnetic rod.When the magnetic rod rotates through the emulsion circulating tank, the iron powder and oil stains in the emulsion are adsorbed under the action of magnetic field, and finally the iron powder and oil stains adsorbed on the magnetic rod are scraped off by scraping, and then the impurities are conveyed to the oil stain tank by screw transmission.The disadvantage of magnetic rod filter is that while adsorbing iron powder, it cannot avoid the absorption of rolling emulsion, which increases the consumption of rolling emulsion per ton of steel and increases the production cost. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of cold-rolled emulsion system magnetism stick surface deoiling device, to avoid the problem of emulsion absorption while removing iron powder by magnetic rod filter and increase the consumption of rolling emulsion.

[0005] The utility model discloses a technical scheme which is adopted to realize the above-mentioned purpose is: a kind of cold rolling emulsion system magnet rod surface oil removal device, including emulsion tank, magnet rod, compressed air coil pipe, pneumatic valve, air compressor, compressed air coil pipe is arranged in the emulsion tank under emulsion the periphery of magnet rod, compressed air coil pipe is evenly provided with several exhaust holes, air compressor is arranged outside emulsion tank, is connected with compressed air coil pipe by compressed air pipeline.

[0006] Further, compressed air pipeline is provided with pneumatic valve, and the pneumatic valve controls compressed air valve.

[0007] Further, compressed air coil pipe is arranged at the position 300mm below emulsion surface, and exhaust hole is towards the junction position of emulsion surface and magnet rod.

[0008] Further, the cylinder of pneumatic valve is fixed on emulsion tank, and the cylinder is connected with rolling mill programmable controller by electromagnetic valve and relay.

[0009] The utility model discloses the beneficial effect is: emulsion magnet rod surface adhered emulsion is effectively cleaned, solve the problem that emulsion magnet rod filter removes iron powder while wasting rolling emulsion, reduce emulsion consumption, improve emulsion and plate surface quality. DRAWINGS

[0010] Fig. 1 It is the front view structural schematic diagram of the utility model;

[0011] Fig. 2 It is the top view structural schematic diagram of the utility model;

[0012] Fig. 3 It is the side view structural schematic diagram of the utility model;

[0013] In the drawing, 1, emulsion tank;2, magnet rod;3, compressed air coil pipe;4, pneumatic valve;5, air compressor;6, emulsion surface;7, exhaust hole;8, compressed air pipeline. DETAILED DESCRIPTION

[0014] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0015] A kind of cold rolling emulsion system magnet rod surface oil removal device, as shown in Figs. 1 to 3As shown, including emulsion tank 1, magnetic bar 2, compressed air coil 3, pneumatic valve 4, air compressor 5, compressed air coil 3 is arranged in emulsion tank 1 below the emulsion surface 6 around the magnetic bar 2, compressed air coil 3 is evenly provided with several exhaust holes 7, air compressor 5 is arranged outside the emulsion tank 1, connected with compressed air coil 3 through compressed air pipeline 8, compressed air pipeline 8 is provided with pneumatic valve 4, pneumatic valve 4 controls the on-off of compressed air; compressed air coil 3 is arranged at the position near 300mm below the emulsion surface, the exhaust hole 7 is directed to the junction position of emulsion surface 6 and magnetic bar 2; the cylinder of pneumatic valve 4 is fixed on the emulsion tank 1, and the cylinder of pneumatic valve 4 is connected with the programmable controller of rolling mill through electromagnetic valve and relay.

[0016] By starting and stopping the emulsion system magnetic bar filter, the start and stop signal is fed back to the programmable controller of the rolling mill, the programmable controller gives the pneumatic signal of air compressor 5 through relay and electromagnetic valve, and gives the opening signal of pneumatic valve 4 at the same time, the pneumatic valve 4 is opened, the compressed air is blown from the inside of the emulsion to the junction of the magnetic bar 2 and the emulsion surface 6, so that the emulsion near the emulsion surface 6 of the magnetic bar 2 is stirred, the oil on the surface near the magnetic bar 2 is removed, and the magnetic bar 2 is prevented from being attached with emulsion (rolling oil). Through the structure of the utility model, the rolling oil adhered to the surface of the emulsion magnetic bar filter is effectively cleaned, the problem that the emulsion magnetic filter removes iron powder while wasting rolling oil is solved intelligently and efficiently, the consumption of emulsion is avoided to be increased, and the quality of emulsion and plate surface is improved.

[0017] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A kind of cold-rolled emulsion system magnetic rod surface oil removal device, including emulsion tank and magnetic rod, it is characterized by: Also include compressed air coil, pneumatic valve, air compressor, the compressed air coil is arranged in the emulsion tank under the emulsion of the magnetic bar around, compressed air coil is uniformly provided with several exhaust holes, air compressor is arranged outside the emulsion tank, is connected with compressed air coil through compressed air pipeline.

2. The magnetic bar surface oil removal device of a cold rolling emulsion system according to claim 1, characterized in that: The compressed air pipeline is provided with a pneumatic valve, and the pneumatic valve controls the on-off of compressed air.

3. The magnetic bar surface deoiling device of a cold rolling emulsion system according to claim 1, characterized in that: The compressed air coil is arranged below the emulsion surface by 300 mm, and the exhaust hole is directed to the junction position of the emulsion surface and the magnetic bar.

4. The magnetic bar surface deoiling device of a cold rolling emulsion system according to claim 1, characterized in that: The cylinder of the pneumatic valve is fixed on the emulsion tank, and the cylinder is connected with the rolling mill programmable controller through the electromagnetic valve and the relay.

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