Controllable rolling mill strip steel rolling emulsion purging device

Abstract

The utility model discloses a controllable rolling mill strip steel rolling emulsion purging device, which comprises a main purging mechanism, an auxiliary purging mechanism and an auxiliary purging mechanism, the main purging mechanism comprises a left purging branch pipe and a right purging branch pipe, and the left purging branch pipe and the right purging branch pipe are arranged at an obtuse angle; main nozzles and main protection supports are arranged on the main blowing mechanisms, the main protection supports protrude out of the main blowing mechanisms, main containing areas are formed between the main protection supports and the main blowing mechanisms, and the main nozzles are located in the main containing areas; a plurality of main air outlet holes are formed in the main protection support, and each main air outlet hole corresponds to one main nozzle. The main purging mechanism is innovatively designed into the left purging branch pipe and the right purging branch pipe which are arranged at the obtuse angle, and purging is conducted from the middle of the strip steel to the left side edge and the right side edge, so that residual emulsion on the strip steel is better purged, and the purging effect is improved; in addition, a main protection support is arranged outside the main nozzle, the main nozzle is protected through the main protection support, and the nozzle is prevented from being impacted or corroded by the outside.

Description

Technical Field

[0001] This utility model relates to the technical field of zinc-aluminum-magnesium plate surface detection, specifically to a controllable rolling mill strip steel emulsion purging device. Background Technology

[0002] In the production line of cold-rolled steel strip, there is still emulsion residue on the surface of cold-rolled steel sheet. According to the test data from the quality control department, the total iron content in the rolling mill emulsion is unstable. The shortcomings and deficiencies of the existing process and equipment cause the surface cleanliness of the steel sheet to fail to meet the standards, resulting in the blackening of the rolled steel sheet. The most direct reason for the blackening of the steel sheet surface is the excessive amount of residual oil and residual iron adhering to the steel sheet surface, as well as the residue of rolling liquid.

[0003] To address the aforementioned issues, an emulsion purging device is currently added to the rolling mill to remove impurities and residues generated during the rolling process, ensuring rolling quality. The emulsion purging device mainly consists of purging nozzles, conveying pipes, and a control system. However, existing purging devices are designed as single-row straight pipes, rather than purging towards the edge of the strip, resulting in poor purging effectiveness. Furthermore, the purging nozzles protrude directly from the conveying pipes without adequate protection, making them susceptible to damage from collisions with other components. Utility Model Content

[0004] In order to overcome the above-mentioned technical defects, the purpose of this utility model is to provide a controllable strip rolling emulsion purging device to solve the problems of poor strip surface emulsion purging effect and how to protect the nozzle in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a controllable strip rolling emulsion purging device, comprising:

[0007] The main purging mechanism is located downstream of the mill outlet. The main purging mechanism includes a left purging branch pipe and a right purging branch pipe. The left purging branch pipe and the right purging branch pipe are set at an obtuse angle. The left purging branch pipe is used to generate a left purging airflow from the middle of the strip to the left edge of the strip, and the right purging branch pipe is used to generate a right purging airflow from the middle of the strip to the right edge of the strip.

[0008] Each of the main purging mechanisms is equipped with a main nozzle and a main protective bracket. The main protective bracket protrudes from the main purging mechanism and forms a main receiving area with the main purging mechanism. The main nozzle is located in the main receiving area. The main protective bracket is equipped with multiple main air outlet holes, and each main air outlet hole corresponds to one main nozzle.

[0009] Compared with the prior art, the left blowing branch and the right blowing branch of the main blowing mechanism are designed to be arranged at an obtuse angle, the middle part of the strip steel is blown to the left and right side edges, the residual emulsion on the strip steel is better blown, and the blowing effect is improved; in addition, the main nozzle is externally provided with a main protection support, the main nozzle is protected by the main protection support, and the nozzle is prevented from being impacted or corroded from the outside.

[0010] In an embodiment, the left blowing branch and the right blowing branch are each provided with an air outlet hole, the air outlet hole is arranged in one-to-one correspondence with the nozzle, and the main nozzle is detachably connected with the air outlet hole.

[0011] In an embodiment, the main nozzle is threadedly connected with the air outlet hole.

[0012] In an embodiment, the upper side and the lower side of the main protection support are respectively provided with openings, and the openings are in communication with the main containing area.

[0013] In an embodiment, the main containing area is further provided with a plurality of reinforcing plates, one end of the reinforcing plate is connected with the main protection support, and the other end of the reinforcing plate is connected with the left blowing branch or the right blowing branch.

[0014] In an embodiment, the main blowing mechanism further comprises two air inlet pipes, one of the air inlet pipes is connected with the left blowing branch, and the other air inlet pipe is connected with the right blowing branch.

[0015] In an embodiment, the controllable rolling mill strip steel rolling emulsion blowing device further comprises two rear blowing mechanisms arranged at the left and right ends of the main blowing mechanism respectively, the two rear blowing mechanisms are arranged to extend from the main blowing mechanism to the downstream direction of the strip steel, and the two rear blowing mechanisms are arranged to be inclined to the middle part of the strip steel.

[0016] The rear blowing mechanism comprises a rear blowing branch, a plurality of auxiliary nozzles are arranged on the rear blowing branch, and the auxiliary nozzles are arranged to blow air downward.

[0017] In an embodiment, the rear blowing branch is provided with a rear protection support, the rear protection support is arranged to protrude from the rear blowing branch and is located at the periphery of the auxiliary nozzle, a plurality of auxiliary air outlet holes are arranged on the rear protection support, and each auxiliary air outlet hole is arranged in correspondence with one auxiliary nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0018] The specific embodiments of the utility model will be further described in detail below with reference to the drawings, in which:

[0019] Fig. 1 It is a top view of the controllable rolling mill strip steel rolling emulsion blowing device of the utility model.

[0020] Fig. 2 Figure 1 is a schematic view of a main blowing mechanism of the controllable rolling mill strip rolling emulsion blowing device of the utility model;

[0021] Fig. 3 Figure 2 is a partial sectional view of the main blowing mechanism of the controllable rolling mill strip rolling emulsion blowing device of the utility model;

[0022] Fig. 4 Figure 3 is a partial sectional view of the rear blowing mechanism of the controllable rolling mill strip rolling emulsion blowing device of the utility model.

[0023] Explanation of reference signs:

[0024] 10 main blowing mechanism, 101 main nozzle, 102 main protection support, 103 main air outlet hole, 104 air outlet hole, 105 reinforcing plate, 106 air inlet pipe, 110 left blowing branch pipe, 120 right blowing branch pipe, 20 rear blowing mechanism, 210 auxiliary nozzle, 220 rear protection support, 30 strip steel. DETAILED DESCRIPTION

[0025] The preferred embodiments of the utility model will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not intended to limit the utility model.

[0026] In order to better illustrate the utility model, the utility model will be further described below with reference to the drawings.

[0027] It should be clear that the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the embodiments of the present application.

[0028] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0029] Further, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of "and / or" describes the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the front and rear associated objects.

[0030] In combination Figs. 1 to 4 As shown in the utility model discloses a controllable rolling mill strip 30 rolling emulsion purging device, comprising: main purging mechanism 10, it is located at the outlet downstream of the rolling mill place;The main purging mechanism 10 includes left purging branch pipe 110 and right purging branch pipe 120, the left purging branch pipe 110 with the right purging branch pipe 120 is obtuse angle setting, the left purging branch pipe 110 is used to produce from the middle part of strip 30 to the left edge direction of strip 30 left purging air flow, the right purging branch pipe 120 is used to produce from the middle part of strip 30 to the right edge direction of strip 30 right purging air flow;

[0031] The main purging mechanism 10 all is equipped with main nozzle 101 and main protection support 102, the main protection support 102 protrudes from the main purging mechanism 10 setting and forms main containing area between the main purging mechanism 10, the main nozzle 101 is located in the main containing area;The main protection support 102 is equipped with a plurality of main gas outlet holes 103, and each main gas outlet hole 103 is provided with a main nozzle 101.

[0032] Specifically, the rolling mill works when outputting the strip 30 containing emulsion, the main purging mechanism 10 works synchronously at this time, the air pump or gas supply system is supplied with air to the left purging branch pipe 110 and the right purging branch pipe 120, the main nozzle 101 is connected with the left purging branch pipe 110 and the right purging branch pipe 120, and the gas is sprayed to the outlet direction of the rolling mill, forming left purging air flow from the middle part of the strip 30 to the left edge of the strip 30 and right purging air flow from the middle part of the strip 30 to the right edge of the strip 30, and the emulsion in the middle part of the strip 30 is purged to the left and right edges, so as to reduce the emulsion residue on the strip. Further, the left purging branch pipe 110 and the right purging branch pipe 120 are obtusely arranged, and the connecting points of the two are aligned with the middle part of the strip 30, so that the left purging air flow blown by the left purging branch pipe 110 is inclined to the left relative to the central axis of the strip 30, and the right purging air flow blown by the right purging branch pipe 120 is inclined to the right relative to the central axis of the strip 30, so as to better blow the emulsion on the strip 30.

[0033] In addition, the main protection bracket 102 of the application receives the main nozzle 101 outside the main accommodating area, and the main nozzle 101 is protected by the main protection bracket 102 to prevent the main nozzle 101 from being impacted or corroded externally.

[0034] Compared with the prior art, the main blowing mechanism 10 of the application is designed to be the left blowing branch pipe 110 and the right blowing branch pipe 120 arranged at an obtuse angle, and the middle part of the strip steel 30 is blown to the left and right edges to better blow the residual emulsion on the strip steel 30, improve the blowing effect, greatly reduce the residual emulsion, and thus improve the surface cleanliness of the cold-rolled steel plate. In addition, the main nozzle 101 is externally provided with the main protection bracket 102, and the main nozzle 101 is protected by the main protection bracket 102 to prevent the nozzle from being impacted or corroded externally.

[0035] Preferably, the obtuse angle of the left blowing branch pipe 110 and the right blowing branch pipe 120 is 160°, that is, the left blowing air flow blown out by the left blowing branch pipe 110 is arranged to be inclined to the left by 100° relative to the central axis of the strip steel 30, and the right blowing air flow blown out by the right blowing branch pipe 120 is arranged to be inclined to the right by 100° relative to the central axis of the strip steel 30, so as to better blow away the emulsion on the strip steel 30.

[0036] In the embodiment, the left blowing branch pipe 110 and the right blowing branch pipe 120 are both provided with air outlet holes 104, and the air outlet holes 104 are arranged one-to-one with the nozzles; the main nozzles 101 are detachably connected with the air outlet holes 104, so as to replace the main nozzles 101 according to the maintenance state of the main nozzles 101, and prolong the overall service life of the controllable rolling mill strip steel 30 rolling emulsion blowing device of the application.

[0037] Preferably, the plane formed by the left blowing branch pipe 110 and the right blowing branch pipe 120 is parallel to the plane of the strip steel 30; a plurality of air outlet holes 104 are opened below the left blowing branch pipe 110 and the right blowing branch pipe 120; the number of the main nozzles 101 is 14, and the model of the main nozzles 101 is 2005 air nozzle. After the strip steel 30 is blown by the above-mentioned main nozzles 101, the residual emulsion on the surface of the strip steel 30 is substantially greatly reduced, and the normal production is ensured.

[0038] Further, the main nozzles 101 are threadedly connected with the air outlet holes 104 to facilitate the installation and dismounting of the main nozzles 101 and the air outlet holes 104.

[0039] Further, the upper and lower sides of the main protection bracket 102 are respectively provided with openings, which are communicated with the main accommodating area, so that the workers can put their hands into the main accommodating area through the openings to install or dismount the main nozzle 101.

[0040] Further, the main accommodating area is further provided with a plurality of reinforcing plates 105, one end of the reinforcing plate 105 is connected with the main protection bracket 102, and the other end of the reinforcing plate 105 is connected with the left blowing branch pipe 110 or the right blowing branch pipe 120, so as to strengthen the structure of the main protection bracket 102 and prevent deformation.

[0041] In the embodiment, the main blowing mechanism 10 further comprises two air inlet pipes 106, one of which is connected with the left blowing branch pipe 110, and the other of which is connected with the right blowing branch pipe 120. The air pump or the air supply system supplies air to the left blowing branch pipe 110 and the right blowing branch pipe 120 through the two air inlet pipes. Further, a filtering device can be added in the air supply system to ensure that the air supplied to the nozzle is clean and flows in the correct direction, so as to avoid affecting the cleaning effect and the surface quality of the strip 30 due to impurities or incorrect air flow direction.

[0042] In the embodiment, the controllable rolling mill strip 30 rolling emulsion blowing device further comprises two rear blowing mechanisms 20 which are respectively arranged at the left and right ends of the main blowing mechanism 10, and are arranged in the downstream direction of the main blowing mechanism 10 with respect to the strip 30. The two rear blowing mechanisms 20 are arranged obliquely to the middle part of the strip 30. The rear blowing mechanism 20 comprises a rear blowing branch pipe, and a plurality of auxiliary nozzles 210 are arranged on the rear blowing branch pipe and are arranged to blow air downward.

[0043] Since the emulsion has tension, even if the main blowing mechanism 10 blows, a small part of the emulsion will still remain on the left and right side edges of the strip 30. The auxiliary nozzles 210 are used to blow the emulsion on the left and right side edges of the strip 30 downward, so as to clean the residual emulsion and further improve the blowing effect. In addition, the two rear blowing mechanisms 20 are arranged obliquely to the middle part of the strip 30, so that the corresponding auxiliary nozzles 210 can be controlled by the control device according to the width of the strip 30 to blow the residual emulsion on the side edges. For example, when the strip with the smallest width is blown, the No. 1 auxiliary nozzle is used for blowing, and when the strip with the largest width is blown, the No. 7 auxiliary nozzle is used for blowing.

[0044] Further, the control device comprises a signal acquisition unit and a signal processing unit, the control device is a Mitsubishi Q series PLC controller, and accurate control of the blowing intensity and frequency is realized.

[0045] The controllable rolling mill strip steel 30 rolling emulsion blowing device has the characteristics of simple structure, high efficiency and energy saving; by adjusting the blowing intensity and angle, the emulsion and impurities on the surface of the strip steel 30 can be more effectively removed, the surface quality of the strip steel 30 is improved, and the need for subsequent processing is reduced. It is of great significance to improve the quality and efficiency of strip steel 30 production.

[0046] Further, the rear blowing branch pipe is provided with a rear protection support 220, the rear protection support 220 protrudes from the rear blowing branch pipe and is located outside the periphery of the auxiliary nozzle 210; a plurality of auxiliary air outlet holes are arranged on the rear protection support 220, and each auxiliary air outlet hole corresponds to one auxiliary nozzle 210, so as to protect the auxiliary nozzle 210 by using the rear protection support 220, and prevent the auxiliary nozzle 210 from being impacted or corroded externally.

[0047] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of explanation and do not constitute any limitation on the present application.

Claims

1. A controllable rolling mill strip rolling emulsion purging device, characterized by, The application relates to a controllable rolling mill strip rolling emulsion blowing device. The main blowing mechanism is arranged downstream of the outlet of the rolling mill; the main blowing mechanism comprises a left blowing branch pipe and a right blowing branch pipe, the left blowing branch pipe is arranged at an obtuse angle with the right blowing branch pipe, the left blowing branch pipe is used for generating a left blowing airflow from the middle of the strip to the left edge of the strip, and the right blowing branch pipe is used for generating a right blowing airflow from the middle of the strip to the right edge of the strip. The main blowing mechanism is provided with a main nozzle and a main protection support, the main protection support protrudes from the main blowing mechanism and forms a main containing area with the main blowing mechanism, and the main nozzle is arranged in the main containing area. The main protection support is provided with a plurality of main air outlet holes, and each main air outlet hole corresponds to a main nozzle.

2. The controllable rolling mill strip rolling emulsion blowing device according to claim 1, wherein the left blowing branch pipe and the right blowing branch pipe are provided with air outlet holes, the air outlet holes are arranged in one-to-one correspondence with the nozzles, and the main nozzles are detachably connected with the air outlet holes.

3. The controllable rolling mill strip rolling emulsion blowing device according to claim 2, wherein the main nozzles are threadedly connected with the air outlet holes.

4. The controllable rolling mill strip rolling emulsion blowing device according to claim 2, wherein the main protection support is provided with openings on the upper side and the lower side, and the openings are in communication with the main containing area.

5. The controllable rolling mill strip rolling emulsion blowing device according to claim 1, wherein the main containing area is further provided with a plurality of reinforcing plates, one end of the reinforcing plate is connected with the main protection support, and the other end of the reinforcing plate is connected with the left blowing branch pipe or the right blowing branch pipe.

6. The controllable rolling mill strip rolling emulsion blowing device according to claim 1, wherein the main blowing mechanism further comprises two air inlet pipes, one air inlet pipe is connected with the left blowing branch pipe, and the other air inlet pipe is connected with the right blowing branch pipe.

7. The controllable rolling mill strip rolling emulsion blowing device according to any one of claims 1-6, wherein the controllable rolling mill strip rolling emulsion blowing device further comprises two rear blowing mechanisms arranged at the left end and the right end of the main blowing mechanism respectively, the two rear blowing mechanisms are arranged in an extending manner from the main blowing mechanism to the downstream of the strip, and the two rear blowing mechanisms are arranged in an inclined manner to the middle of the strip. The rear blowing mechanism comprises a rear blowing branch pipe, the rear blowing branch pipe is provided with a plurality of auxiliary nozzles, and the auxiliary nozzles are arranged in a downward air outlet mode.

8. The controllable rolling mill strip rolling emulsion blowing device according to claim 7, wherein the rear blowing branch pipe is provided with a rear protection support, the rear protection support protrudes from the rear blowing branch pipe and is located at the periphery of the auxiliary nozzles, and the rear protection support is provided with a plurality of auxiliary air outlet holes, and each auxiliary air outlet hole corresponds to an auxiliary nozzle. ​ ​ ​ ​ ​ ​ ​

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