Rapid online updating and transforming method for high-speed wire rod roughing mill
Through modular disassembly and pre-assembly of equipment, combined with the lifting technology of tank vehicles and double-travel + shoulder pole beams, the problems of high-speed wire rough rolling mill installation difficulty and shutdown transformation on production capacity are solved, and the rapidity of high-speed wire rough rolling mills are achieved Online updates and transformations have improved installation accuracy and efficiency.
Patent Information
- Application Number
- CN202411869878.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-02-21
Smart Images
Figure CN119489091A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of metal low-cutting or no-cutting processing equipment, in particular to a method for rapid online updating and transformation of a high-speed wire rod roughing mill. Background Art
[0002] With the market demand for high-quality, high-performance high-speed wire and increasingly stringent environmental protection requirements, the original high-speed wire production line is in urgent need of upgrading and transformation due to factors such as equipment aging, reduced production efficiency, increased product quality fluctuations, and rising energy consumption and costs. The high-speed wire production line mainly includes roughing and medium rolling mills, pre-finishing rolling mills, finishing rolling mills, sizing mills, STLM cooling lines, coiling stations, and supporting power supply, transmission, and control systems. The roughing mill is the most difficult process equipment to install during the production line upgrade. The roughing mill frame weighs 32t and has a size of 5.2m×3m×8m. Because the high-speed wire production line is located on a 5m elevated platform, it is impossible to use a crane for in-span installation, and the lifting capacity of the in-span crane is generally only 20t~25t, so a single crane cannot meet the lifting requirements. The rough rolling mill frame is generally transported in a flat position. Before installation, the frame needs to be turned over and stood upright in advance. However, the height from the 5m platform to the workshop is small and the frame height is high, so it is impossible to turn over in the span. It needs to be turned over in the adjacent span before being transported to the production line. The clearance from the 5m platform of the production line to the bottom of the crane beam is only 8.5m. It is difficult to smoothly move the frame from the 5m platform of the adjacent span through the bottom of the crane beam to the installation span. The shutdown and transformation of the production line is extremely detrimental to the production unit's production capacity. How to complete the renovation of the high-speed wire rod rough rolling mill online in a short time and with high quality has become a problem that needs to be solved urgently. Summary of the invention
[0003] In order to overcome the defects of the prior art and provide a production line updating method with improved accuracy and shortened cycle, the present invention discloses a method for rapid online updating and transformation of a high-speed wire rod roughing mill.
[0004] The present invention achieves the purpose of the invention through the following technical solutions: A method for rapid online renovation of a high-speed wire rod roughing mill is characterized by: performing the following steps in sequence: S1. Construction preparation: survey the site, familiarize yourself with the actual environment of the construction site, digest the design drawings, establish the BIM model of the production line, and simulate each process of the rough rolling mill installation in advance; S2. Disassembly and pre-assembly: The roughing mill is disassembled and pre-assembled according to the modular requirements of the equipment. When the roughing mill equipment is produced, the equipment is modularly disassembled and manufactured in advance to reduce the workload and difficulty of on-site installation. After the roughing mill equipment is manufactured, it is pre-assembled in the factory and modularly disassembled after meeting the installation requirements; S3. Equipment transportation: transport the roughing mill equipment, pack and ship it in modularized form, and transport it to the installation site for standby before the production line is shut down for transformation. The largest and heaviest racks are transported flat to the production line using flatbed trailers, and the rest of the equipment is transported to the 5m platform of the production line; S4. Laying the transfer channel: Lay the transfer channel for the roughing mill frame. Before the production line is shut down, lay the steel plate transfer channel on the 5m platform channel between the production line and the adjacent span. The steel plates are welded and connected. The top surface of the transfer channel should be flat. S5. Shutdown and transformation: The production line is officially shut down for transformation, the existing machinery and pipelines are dismantled, and the equipment foundation is updated; S6, Transferring the rack: The roughing mill rack is transferred. A 20t tank is installed on each of the four bases of the roughing mill rack. After the installation is completed, the bottom surface is kept flush. An 80t crane and a traveling crane are used to flip the rack upright. Then the 80t crane is used to lift it to the transfer channel adjacent to the production line. The rack is transferred to the production line span by the traction device; S7. Install the frame: Install the frame of the rough rolling mill. The frame of the rough rolling mill is lifted by two 25t double cranes + a shoulder pole beam. The synchronization of the two cranes is ensured during the lifting operation. S8. Install other equipment: After the roughing mill frame is installed in place, the mill body, process platform and supporting facilities are installed in turn; S9, Debugging: production line equipment debugging and trial production; S10, production: the production line is officially put into operation.
[0005] The method for rapid online updating and transformation of a high-speed wire rod roughing mill is characterized by: In step S2, the rough rolling mill is divided into four parts: a rolling mill body, a frame, a process platform and supporting facilities; In step S4, the transfer channel is paved with 20 mm thick steel plates with a width of 3.6 m and a length of 15 m; In step S6, the size of the tank vehicle is 590 mm×330 mm×145 mm.
[0006] The present invention has the following beneficial effects: 1. The modular disassembly and installation of the roughing mill equipment improves the accuracy of equipment installation, while significantly reducing the workload and difficulty of on-site installation and saving installation time; 2. The rough rolling mill equipment manufacturer pre-assembles the equipment in advance, eliminating the errors in the equipment manufacturing process and ensuring the accuracy of the equipment when it leaves the factory; 3. The rough rolling mill frame is transported outside the span by tanks, which solves the problem that cranes cannot be used for lifting operations on the production line platform. At the same time, the tanks have the advantages of small size and large load, which can meet the requirements of super-large and super-heavy frames to smoothly pass through the limit space under the crane beam; 4. The rough rolling mill frame adopts double crane + shoulder beam for double machine lifting, which solves the problem that the tonnage of the crane inside the production line is too small to meet the lifting of overweight equipment, and saves the high cost of using large cranes for lifting operations outside the span; 5. All preparatory work before the installation of the roughing mill equipment was completed before the production line was shut down for transformation, creating conditions for completing the renovation of the high-speed wire rod roughing mill online in a short time and with high quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION
[0008] The present invention is further described below by means of specific examples. Example
[0009] A method for rapid online renovation of a high-speed wire rod roughing mill is characterized by: performing the following steps in sequence: S1. Construction preparation: survey the site, familiarize yourself with the actual environment of the construction site, digest the design drawings, establish the BIM model of the production line, and simulate each process of the rough rolling mill installation in advance; S2. Disassembly and pre-assembly: The roughing mill is disassembled and pre-assembled according to the modular requirements of the equipment. When the roughing mill equipment is produced, the equipment is modularly disassembled and manufactured in advance, mainly divided into the mill body, frame, process platform and supporting facilities, so as to reduce the workload and difficulty of on-site installation. After the roughing mill equipment is manufactured, it is pre-assembled in the factory and modularly dismantled after meeting the installation requirements; S3. Equipment transportation: transport the roughing mill equipment, pack and ship it in modularized form, and transport it to the installation site for standby before the production line is shut down for transformation. The largest and heaviest racks are transported flat to the production line using flatbed trailers, and the rest of the equipment is transported to the 5m platform of the production line; S4. Laying the transfer channel: Laying the transfer channel for the rough rolling mill frame. Before the production line is shut down, a 3.6m wide and 15m long transfer channel is laid with 20mm thick steel plates on the 5m platform channel between the production line and the adjacent span. The steel plates are welded and connected. The top surface of the transfer channel should be flat. S5. Shutdown and transformation: The production line is officially shut down for transformation, the existing machinery and pipelines are dismantled, and the equipment foundation is updated; S6. Transferring the frame: The rough rolling mill frame is transferred. A 20t tank car is installed on each of the four bases of the rough rolling mill frame. The size of the tank car is 590mm×330mm×145mm. After the installation is completed, the bottom surface is kept flush. An 80t crane and a crane are used to flip the frame upright. Then the 80t crane is used to lift it to the transfer channel adjacent to the production line. The frame is transferred to the production line span through the traction device; S7. Install the frame: Install the frame of the rough rolling mill. The frame of the rough rolling mill is lifted by two 25t double cranes + a shoulder pole beam. The synchronization of the two cranes is ensured during the lifting operation. S8. Install other equipment: After the roughing mill frame is installed in place, install the other equipment of the roughing mill such as the mill body, process platform and supporting facilities in turn; S9, Debugging: production line equipment debugging and trial production; S10, production: the production line is officially put into operation.
Claims
1. A method for rapid online renovation of a high-speed wire rod roughing mill, characterized by: Follow the steps below to implement: S1. Construction preparation: survey the site, familiarize yourself with the actual environment of the construction site, digest the design drawings, establish the BIM model of the production line, and simulate each process of the rough rolling mill installation in advance; S2. Disassembly and pre-assembly: The roughing mill is disassembled and pre-assembled according to the modular requirements of the equipment. When the roughing mill equipment is produced, the equipment is modularly disassembled and manufactured in advance to reduce the workload and difficulty of on-site installation. After the roughing mill equipment is manufactured, it is pre-assembled in the factory and modularly disassembled after meeting the installation requirements; S3. Equipment transportation: transport the roughing mill equipment, pack and ship it in modularized form, and transport it to the installation site for standby before the production line is shut down for transformation. The largest and heaviest racks are transported flat to the production line using flatbed trailers, and the rest of the equipment is transported to the 5m platform of the production line; S4. Laying the transfer channel: Lay the transfer channel for the roughing mill frame. Before the production line is shut down, lay the steel plate transfer channel on the 5m platform channel between the production line and the adjacent span. The steel plates are welded and connected. The top surface of the transfer channel should be flat. S5. Shutdown and transformation: The production line is officially shut down for transformation, the existing machinery and pipelines are dismantled, and the equipment foundation is updated; S6, Transferring the rack: The roughing mill rack is transferred. A 20t tank is installed on each of the four bases of the roughing mill rack. After the installation is completed, the bottom surface is kept flush. An 80t crane and a traveling crane are used to flip the rack upright. Then the 80t crane is used to lift it to the transfer channel adjacent to the production line. The rack is transferred to the production line span by the traction device; S7. Install the frame: Install the frame of the rough rolling mill. The frame of the rough rolling mill is lifted by two 25t double cranes + a shoulder pole beam. The synchronization of the two cranes is ensured during the lifting operation. S8. Install other equipment: After the roughing mill frame is installed in place, the mill body, process platform and supporting facilities are installed in turn; S9, Debugging: production line equipment debugging and trial production; S10, production: the production line is officially put into operation.
2. The method for rapid online upgrading and transformation of a high-speed wire rod roughing mill according to claim 1, characterized in that: In step S2, the rough rolling mill is divided into four parts: a rolling mill body, a frame, a process platform and supporting facilities; In step S4, the transfer channel is paved with 20 mm thick steel plates with a width of 3.6 m and a length of 15 m; In step S6, the size of the tank vehicle is 590 mm×330 mm×145 mm.