A method for installing a rolling mill device

Abstract

The present invention provides a method for installing a rolling mill equipment, which relates to the technical field of rolling lines and aims to solve the problem of low installation efficiency of rolling mill equipment. The method includes: burying permanent center marking plates and elevation reference points at the construction site; setting main motor span measurement control lines located within the main motor span, setting main rolling span measurement control lines located within the main rolling span, and setting roll grinding room measurement control lines located within the roll grinding room according to the permanent center marking plates and elevation reference points; first installing the main drive equipment of the rolling mill within the main motor span according to the main motor span measurement control lines, then installing the rolling mill body equipment within the main rolling span according to the main rolling span measurement control lines, and then installing the roll changing device within the roll grinding room according to the roll grinding room measurement control lines. The present invention is mainly used for the construction of new rolling mill projects and the transformation of rolling mill projects, improving the installation efficiency of rolling mill equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling lines, and in particular to a method for installing rolling mill equipment. Background Art

[0002] In existing new-built or reconstructed rolling mill projects, rolling mill equipment is installed in the following order: installation and alignment of the rolling mill base → hoisting and positioning of the rolling mill housing → alignment of the rolling mill housing → installation of the drive-side gear distribution box → installation of the roll-changing device → installation of the main speed reducer → installation of the main motor. Among them, the equipment installed later is aligned and installed backward with the equipment installed earlier as the reference.

[0003] However, the existing installation method has the following disadvantages:

[0004] 1. Since the equipment installed later is aligned with the equipment installed earlier as the reference, it usually does not perform the subsequent process operations before the previous process is completed, resulting in a relatively long installation period.

[0005] 2. When it comes to the stage of installing the main motor equipment, it is in the later stage of the whole project. The installation and commissioning time of equipment, pipelines, and electrical systems is extremely tight, and often fails to be completed on time, thus prolonging the construction period of the rolling mill equipment.

[0006] 3. Since the arrival time of main drive equipment such as the main motor and main speed reducer of the rolling mill is affected by various factors such as manufacturing, transportation, traffic, and inspection, the arrival sequence cannot be completely completed according to the construction schedule. This leads to the situation that the above-mentioned main drive equipment that arrives first cannot be installed in advance and can only be stacked on-site, resulting in crowded on-site equipment and increasing the storage and handling costs of the main drive equipment. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: to provide a method for installing rolling mill equipment to improve the installation efficiency.

[0008] The technical solution adopted by the present invention to solve its technical problems is:

[0009] A method for installing rolling mill equipment includes: burying permanent center plates and elevation reference points at the construction site; setting main motor bay measurement control lines located in the main motor bay, main rolling bay measurement control lines located in the main rolling bay, and roll grinding bay measurement control lines located in the roll grinding bay according to the permanent center plates and elevation reference points; first installing the main drive equipment of the rolling mill in the main motor bay according to the main motor bay measurement control lines, then installing the rolling mill body equipment in the main rolling bay according to the main rolling bay measurement control lines, and then installing the roll-changing device in the roll grinding bay according to the roll grinding bay measurement control lines.

[0010] Further, the main motor bay measurement control lines include the main motor center line and the main motor offset.

[0011] Furthermore, the main rolling bay measurement control lines include the rolling center line, the offset of the rolling center line on the drive side, the offset of the rolling center line on the operator side, and the mill center line.

[0012] Furthermore, the roll grinding bay measurement control line includes the roll changing center line.

[0013] Furthermore, the installation of the main drive equipment of the mill includes: constructing the main motor foundation within the main motor bay according to the main motor bay measurement control lines; setting the main motor center control point and the main speed reducer center control point on the main motor foundation; installing the main motor and the main speed reducer on the main motor foundation according to the main motor center control point and the main speed reducer center control point.

[0014] Furthermore, the installation of the mill body equipment includes: constructing the drive side gear distribution box foundation and the mill base foundation within the main rolling bay according to the main rolling bay measurement control lines; setting the drive side gear distribution box center control point on the drive side gear distribution box foundation and setting the mill base center control point on the mill base foundation; installing the drive side gear distribution box on the drive side gear distribution box foundation according to the drive side gear distribution box center control point, installing the mill base on the mill base foundation according to the mill base center control point, and installing the mill housing on the mill base.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The mill equipment installation method provided by the embodiment of the present invention pre-arranges the main motor bay measurement control lines, the main rolling bay measurement control lines, and the roll grinding bay measurement control lines, so that the equipment within the main motor bay, the main rolling bay, and the roll grinding bay can be installed independently, solving the problem of low installation efficiency in the prior art where the equipment installed later must be installed based on the equipment installed earlier. This makes it possible to install the mill equipment arbitrarily according to the arrival needs, not only ensuring the installation accuracy but also improving the installation efficiency.

[0017] 2. The mill equipment installation method provided by the embodiment of the present invention adopts the reverse installation method of first installing the main drive equipment of the mill within the main motor bay and then installing the mill body equipment within the main rolling bay. It can achieve the early commissioning and installation of the main drive equipment of the mill without installing the mill body equipment, reducing the workload in the later stage of installation, solving the problems of tight construction period for the later supporting electrical pipeline construction and single-unit commissioning in the prior art, effectively balancing the installation work intensity in each construction stage, saving the temporary storage site for the main drive equipment after it arrives first, reducing the secondary handling cost of the main drive equipment, and achieving the purpose of improving the installation efficiency.

[0018] 3. The mill equipment installation method provided by the embodiments of the present invention is applicable not only to new mill projects but also to mill renovation projects. When the mill renovation project adopts the method of the present invention, the shutdown time of the rolling production line can be greatly shortened, and the output loss of the production plant can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is the state diagram after setting the measurement control lines at the installation site;

[0021] Figure 2 is the state diagram after setting the central control points at the installation site;

[0022] Figure 3 is the structural schematic diagram after the installation of the mill equipment.

[0023] In the drawings, the reference numerals are: 1 - permanent center marking plate, 2 - elevation reference point, 3 - main motor bay, 4 - main rolling bay, 5 - roll grinding room, 6 - main drive equipment of the mill, 7 - mill body equipment, 8 - roll changing device, 9 - main motor center line, 10 - main motor off-center, 11 - rolling center line, 12 - off-center of the rolling center line on the drive side, 13 - off-center of the rolling center line on the operation side, 14 - mill center line, 15 - roll changing center line, 16 - main motor foundation, 17 - main motor center control point, 18 - main reducer center control point, 19 - main motor, 20 - main reducer, 21 - foundation of the drive side gear distribution box, 22 - mill base foundation, 23 - drive side gear distribution box center control point, 24 - mill base center control point, 25 - drive side gear distribution box, 26 - mill base, 27 - mill housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0025] See Figures 1 to 3 , a mill equipment installation method provided by an embodiment of the present invention, characterized in that it includes:

[0026] S1. Bury the permanent center mark plate 1 and elevation reference point 2 at the construction site; according to the permanent center mark plate 1 and elevation reference point 2, set the measurement control lines in the main motor bay 3, set the measurement control lines in the main rolling bay 4, and set the measurement control lines in the roll grinding room 5.

[0027] S2. First, install the main drive equipment 6 of the rolling mill in the main motor bay 3 according to the measurement control lines in the main motor bay, then install the rolling mill body equipment 7 in the main rolling bay 4 according to the measurement control lines in the main rolling bay, and then install the roll changing device 8 in the roll grinding room 5 according to the measurement control lines in the roll grinding room.

[0028] The rolling mill equipment installation method provided by the embodiment of the present invention enables the independent installation of the equipment in the main motor bay 3, the main rolling bay 4, and the roll grinding room 5 by pre-arranging the measurement control lines in the main motor bay, the main rolling bay, and the roll grinding room. This solves the problem of low installation efficiency in the prior art where the equipment installed later must be installed based on the equipment installed earlier. It makes it possible to install the rolling mill equipment arbitrarily according to the needs of arrival, not only ensuring the installation accuracy but also improving the installation efficiency. By adopting the reverse installation method of first installing the main drive equipment 6 of the rolling mill in the main motor bay 3 and then installing the rolling mill body equipment 7 in the main rolling bay 4, the pre-commissioning installation of the main drive equipment 6 of the rolling mill can be achieved without installing the rolling mill body equipment 7, reducing the workload in the later stage of installation, solving the problems of tight construction period for the later supporting electrical pipeline construction and single-unit commissioning in the prior art. At the same time, it effectively balances the installation work intensity in each construction stage, saves the temporary storage site for the advanced arrival of the main drive equipment, reduces the secondary transportation cost of the main drive equipment 6 of the rolling mill, and achieves the purpose of improving the installation efficiency.

[0029] The rolling mill equipment installation method provided by the embodiment of the present invention is not only applicable to new rolling mill projects but also more applicable to the transformation of rolling mill projects; when the method of the present invention is adopted for the transformation of rolling mill projects, the shutdown time of the rolling production line can be greatly shortened, and the output loss of the production plant can be reduced.

[0030] The following Figures 1 to 3 Take the transformation project of the 7-stand finishing mill as an example for detailed description.

[0031] In step S1, arrange the measurement control lines for reverse installation during the first shutdown stage to use the same reference in subsequent installations and ensure the installation accuracy.

[0032] See Figure 1 、 Figure 3, at the construction site, there are four rows of brick walls A, B, C, and D. Among them, between row A and row B of brick walls is the roll grinding room 5, between row B and row C of brick walls is the main rolling bay 4, and between row C and row D of brick walls is the main motor bay 3. During the first shutdown phase, after the relevant roller tables and other facilities are demolished, the permanent center plates 1 and elevation reference points 2 are started to be buried. Figure 1 At H1 - H6 represent the elevation reference points 2, and at the remaining positions represent the permanent center plates 1. By burying the permanent center plates 1 and elevation reference points 2, the measured center line and elevation positions can be marked out, serving as the common basis for the installation of rolling mill equipment.

[0033] See Figure 1 , according to the permanent center plates 1 and elevation reference points 2 in the main motor bay 3, set the main motor bay measurement control lines. Among them, the main motor bay measurement control lines include the main motor center line 9 and the main motor offset center 10. For example, the number of the main motor center lines 9 is 7, and the number of the main motor offset center 10 is 1; among them, the 7 main motor center lines 9 are parallel to each other and perpendicular to the main motor offset center 10.

[0034] According to the permanent center plates 1 and elevation reference points 2 in the main rolling bay 4, set the main rolling bay measurement control lines. Among them, the main rolling bay measurement control lines include the rolling center line 11, the drive - side rolling center line offset 12, the operator - side rolling center line offset 13, and the rolling mill center line 14. For example, the number of the rolling center line 11, the drive - side rolling center line offset 12, and the operator - side rolling center line offset 13 is 1 each and they are parallel to each other, and the number of the rolling mill center lines 14 is 7; among them, the 7 rolling mill center lines 14 are parallel to each other and perpendicular to the rolling center line 11.

[0035] According to the permanent center plates 1 and elevation reference points 2 in the roll grinding room 5, set the roll grinding room measurement control lines. Among them, the roll grinding room measurement control lines include the roll - changing center line 15. For example, the number of the roll - changing center lines 15 is 7; among them, the 7 roll - changing center lines 15 are parallel to each other and correspond one - to - one with the 7 rolling mill center lines 14; the corresponding roll - changing center line 15 and the rolling mill center line 14 are collinear.

[0036] In step S2, first install the main drive equipment 6 of the rolling mill in the main motor bay 3 according to the main motor bay measurement control lines. Among them, installing the main drive equipment 6 of the rolling mill includes: constructing the main motor foundation 16 in the main motor bay 3 according to the main motor bay measurement control lines; setting the main motor center control point 17 and the main reducer center control point 18 on the main motor foundation 16; installing the main motor 19 and the main reducer 20 on the main motor foundation 16 according to the main motor center control point 17 and the main reducer center control point 18.

[0037] SeeFigure 3 , the main drive equipment 6 of the rolling mill mainly includes a main motor 19 and a main speed reducer 20. After resuming production after the first shutdown and entering the stage of simultaneous production and construction, among them, the main motor foundation 16 is relatively independent compared with other modified parts, and the main motor foundation 16 can be preferentially constructed in the main motor bay 3. See Figure 2 , after the construction of the main motor foundation 16 is completed, a main motor center control point 17 and a main speed reducer center control point 18 are set on the main motor foundation 16 to serve as the benchmarks for installing the main motor 19 and the main speed reducer 20. In this way, the installation can be carried out according to the arrival sequence of the main motor 19 and the main speed reducer 20, without being affected by the order of equipment arrival. After the main motor 19 and the main speed reducer 20 are installed, the electrical construction of the main motor and the lubrication pipeline construction of the main motor can be carried out, and the single-machine commissioning of the main motor 19 can be carried out under the condition of non-stop production, so that the commissioning workload of this part in the later stage of the entire renovation and installation stage can be completed in advance, saving the shutdown time.

[0038] After the main drive equipment 6 of the rolling mill is installed, the rolling mill body equipment 7 is installed in the main rolling bay 4 according to the main rolling bay measurement control line. Among them, the installation of the rolling mill body equipment 7 includes: constructing the drive-side gear distribution box foundation 21 and the rolling mill base foundation 22 in the main rolling bay 4 according to the main rolling bay measurement control line; setting a drive-side gear distribution box center control point 23 on the drive-side gear distribution box foundation 21, and setting a rolling mill base center control point 24 on the rolling mill base foundation 22; installing the drive-side gear distribution box 25 on the drive-side gear distribution box foundation 21 according to the drive-side gear distribution box center control point 23, installing the rolling mill base 26 on the rolling mill base foundation 22 according to the rolling mill base center control point 24, and installing the rolling mill housing 27 on the rolling mill base 26.

[0039] See Figure 3 , the rolling mill body equipment 7 mainly includes a drive-side gear distribution box 25, a rolling mill base 26 and a rolling mill housing 27. In the stage of simultaneous production and construction, the drive-side gear distribution box foundation 21 and the rolling mill base foundation 22 can be preferentially completed. See Figure 2 , after the construction of the drive-side gear distribution box foundation 21 and the rolling mill base foundation 22 is completed, a drive-side gear distribution box center control point 23 is set on the drive-side gear distribution box foundation 21 to serve as the benchmark for installing the drive-side gear distribution box 25, and a rolling mill base center control point 24 is set on the rolling mill base foundation 22 to serve as the benchmark for installing the rolling mill base 26. In this way, the drive-side gear distribution box 25 and the rolling mill base 26 can be installed and aligned in advance under the condition of non-stop production, and the gear lubrication pipe piping can be carried out synchronously, reducing the construction workload during the second shutdown and saving the second shutdown time. During the second shutdown stage, the rolling mill housings 27 are hoisted one by one onto the already installed and aligned rolling mill bases 26.

[0040] After the rolling mill main equipment 7 is installed, the roll changing device 8 is installed in the roll grinding room 5 according to the measurement control line in the roll grinding room. Refer to Figure 2 , Figure 3 , during the second shutdown stage, the roll changing devices 8 are hoisted one by one to the installation positions for installation.

[0041] For the rolling mill equipment installation method provided by the embodiment of the present invention, when applied to the transformation of the rolling mill project, the workload during the shutdown time is greatly reduced compared with the existing installation method, saving the construction period for the later commissioning stage, reducing the labor intensity of the shutdown transformation, and making the entire transformation construction management more orderly and the construction tasks more balanced.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for installing a rolling mill equipment, characterized in that, Including: Permanently embed center plates (1) and elevation reference points (2) at the construction site; according to the permanently embedded center plates (1) and elevation reference points (2), set the measurement control lines in the main motor bay (3), set the measurement control lines in the main rolling bay (4), and set the measurement control lines in the roll grinding bay (5); First, install the main drive equipment (6) of the rolling mill in the main motor bay (3) according to the measurement control lines in the main motor bay, then install the main body equipment (7) of the rolling mill in the main rolling bay (4) according to the measurement control lines in the main rolling bay, and then install the roll changing device (8) in the roll grinding bay (5) according to the measurement control lines in the roll grinding bay; The measurement control lines in the main motor bay include the main motor center line (9) and the main motor off-center (10); The measurement control lines in the main rolling bay include the rolling center line (11), the off-center of the rolling center line on the drive side (12), the off-center of the rolling center line on the operating side (13), and the rolling mill center line (14); The measurement control lines in the roll grinding bay include the roll changing center line (15).

2. The method for installing a rolling mill equipment according to claim 1, characterized in that, Installing the main drive equipment (6) of the rolling mill includes: Construct the main motor foundation (16) in the main motor bay (3) according to the measurement control lines in the main motor bay; Set the main motor center control point (17) and the main reducer center control point (18) on the main motor foundation (16); Install the main motor (19) and the main reducer (20) on the main motor foundation (16) according to the main motor center control point (17) and the main reducer center control point (18).

3. The method for installing a rolling mill equipment according to claim 1, characterized in that, Installing the main body equipment (7) of the rolling mill includes: Construct the drive-side gear distribution box foundation (21) and the rolling mill base foundation (22) in the main rolling bay (4) according to the measurement control lines in the main rolling bay; Set the drive-side gear distribution box center control point (23) on the drive-side gear distribution box foundation (21), and set the rolling mill base center control point (24) on the rolling mill base foundation (22); Install the drive-side gear distribution box (25) on the drive-side gear distribution box foundation (21) according to the drive-side gear distribution box center control point (23), install the rolling mill base (26) on the rolling mill base foundation (22) according to the rolling mill base center control point (24), and install the rolling mill housing (27) on the rolling mill base (26).

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