Arrangement structure and method of copper foil rolling mill

Abstract

The invention relates to a copper foil rolling mill arrangement structure and method, the copper foil rolling mill arrangement structure comprises a copper foil rolling mill main body arranged on a + / -0.000m plane and a rolling mill auxiliary room, and a rolling mill pit with the depth of-4.000 m and the length and width of 3 * 3 m is arranged beside the copper foil rolling mill main body; a sump oil tank is arranged in the rolling mill pit, an oil collecting tray is arranged below a rolling mill housing of the copper foil rolling mill main body, and the oil collecting tray is communicated with the sump oil tank in the rolling mill pit; the circulating oil pump, the clean oil tank, the heater and the high-low pressure pump system are arranged in an auxiliary room of the rolling mill, one end of the circulating oil pump is communicated with a dirty oil tank in a pit of the rolling mill, and the other end of the circulating oil pump is communicated with the clean oil tank; the clean oil tank is also communicated with the copper foil rolling mill main body through a pipeline; the problems that an existing copper foil rolling mill arrangement scheme is large in construction difficulty, high in cost, large in occupied space and the like are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of copper foil production equipment, and in particular to a copper foil rolling mill layout structure and method. Background Art Currently, the copper foil production process typically follows the following steps: copper foil billet - rough rolling - intermediate rolling - coiling - fine foil rolling - slitting - annealing. The copper foil rolling mill, the primary equipment in copper foil production, has traditionally been arranged. This traditional mill layout involves arranging the main copper foil rolling mill within a ±0.000m plane, with a rolling mill basement approximately -6.000m deep and auxiliary rooms within a ±0.000m plane located on either side of the main equipment. The rolling mill basement primarily houses the storage, supply, and recovery of rolling oil, waste oil tanks, heaters, and high- and low-pressure pump systems. Auxiliary rooms primarily include a filter room, mill transformer and electrical control room, mill fume exhaust, oil mist purification, and transformer room. While this configuration has been in use for nearly three decades and has accumulated extensive experience in design, construction, and equipment installation, making it readily accepted by construction companies, it also presents numerous drawbacks. Without considering lowering the foundation for the existing mill, the mill basement's deep and large area necessitated support for the surrounding columns to protect the mill. This construction was difficult and expensive, and the entire equipment would need to be moved away from the building foundation, resulting in wasted plant space. In southern China, where the groundwater level is relatively shallow, groundwater treatment during basement construction was difficult and expensive. Since the mill basement was approximately -6,000 meters below ground, a large amount of earthwork would need to be excavated, resulting in high construction costs. Summary of the Invention

[0002] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a copper foil rolling mill layout structure and method to solve the problems of the existing copper foil rolling mill layout scheme, such as high construction difficulty, high cost, and large space occupation.

[0003] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a copper foil rolling mill layout structure, comprising a copper foil rolling mill main body and a rolling mill auxiliary room arranged in the ±0.000m plane, a rolling mill pit with a depth of -4.000m and a length and width of 3×3m is provided next to the copper foil rolling mill main body; a dirty oil tank is provided in the rolling mill pit, and an oil collecting pan is provided under the rolling mill arch of the copper foil rolling mill main body, the oil collecting pan is connected to the dirty oil tank in the rolling mill pit, and is used to allow the rolling oil to flow back from the oil collecting pan to the dirty oil tank by gravity; it also includes a circulating oil pump, a clean oil tank, a heater, and a high and low pressure pump system arranged in the rolling mill auxiliary room, one end of the circulating oil pump is connected to the dirty oil tank in the rolling mill pit, and the other end is connected to the clean oil tank, and is used to pump the rolling oil in the dirty oil tank to the clean oil tank; the clean oil tank is also connected to the copper foil rolling mill main body through a pipeline, so that the filtered rolling oil is circulated to the copper foil rolling mill main body for use. Furthermore, the pit wall of the rolling mill pit adopts a reinforced concrete structure, and two layers of waterproof membranes are arranged on the inner wall of the reinforced concrete structure. The outer layer is SBS modified asphalt waterproof membrane, and the inner layer is a polymer self-adhesive waterproof membrane. A cement mortar leveling layer is arranged between the two layers of waterproof membranes. Furthermore, the connecting pipe between the oil collecting pan and the dirty oil tank in the rolling mill pit is made of stainless steel with a diameter of DN100. An electromagnetic control valve is provided on the connecting pipe, and the electromagnetic control valve is connected to the electronic control system of the rolling mill; a sewage outlet is provided at the lowest point of the connecting pipe, and a sewage valve is installed at the sewage outlet. Furthermore, a three-stage filtering device is provided on the pipeline connecting the clean oil tank and the copper foil rolling mill body. The first stage is a coarse filter screen for filtering out impurities with a particle size greater than 50μm; the second stage is a precision filter element with a filtration accuracy of 10μm; and the third stage is an activated carbon adsorption layer. Furthermore, the circulating oil pump adopts a variable frequency speed regulation pump, and its speed is automatically adjusted by the rolling mill electronic control system. Furthermore, a liquid level sensor is arranged in the rolling mill pit, and the liquid level sensor is connected to the electronic control system of the rolling mill. When the rolling oil level in the dirty oil tank reaches a preset upper limit value, the electronic control system controls the circulating oil pump to start; when the liquid level reaches a preset lower limit value, the electronic control system controls the circulating oil pump to stop running. Furthermore, the heater adopts a combination of an electric heating tube and a temperature control system. The temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time. When the temperature is lower than the set value, the electric heating tube is automatically started to heat the rolling oil; when the temperature reaches the set value, the electric heating tube stops working.

[0004] A copper foil rolling mill layout structure application method includes: first, installing a copper foil rolling mill main body 1 on a ±0.000m plane; excavating a rolling mill pit 3 with a depth of -4.000m and a length and width of 3×3m next to the copper foil rolling mill main body according to design dimensions; after the rolling mill pit is excavated, reinforced concrete is used to cast the pit wall; after the concrete reaches the design strength, a cement mortar leveling layer, a polymer self-adhesive waterproof membrane, and an SBS modified asphalt waterproof membrane are sequentially laid on the inner wall of the pit to complete the waterproofing treatment; a dirty oil tank is placed in the rolling mill pit; an oil collecting pan is installed under the rolling mill arch of the copper foil rolling mill main body; the oil collecting pan is connected to the dirty oil tank via a stainless steel pipe with a diameter of DN100; and an electromagnetic control valve and a drain valve are installed on the pipe; Install a circulating oil pump and a clean oil tank at a suitable location on the ±0.000m plane. The circulating oil pump adopts a variable frequency speed regulation pump. Connect one end of the circulating oil pump to the dirty oil tank and the other end to the clean oil tank. Install a three-stage filtration device consisting of a coarse filter, a precision filter element, and an activated carbon adsorption layer in sequence on the pipeline connecting the clean oil tank to the main body of the copper foil rolling mill. Install the heater and high and low pressure pump systems at a suitable location on the ±0.000m plane. Install the temperature control system on the heater. Install a liquid level sensor in the rolling mill pit. Connect the liquid level sensor, electromagnetic control valve, circulating oil pump, heater, temperature control system, etc. to the electric control system of the rolling mill. During the copper foil production process, the rolling oil flows back from the oil collecting pan under the rolling mill arch to the dirty oil tank in the rolling mill pit through gravity. When the rolling oil level in the dirty oil tank reaches the preset upper limit, the electronic control system controls the circulating oil pump to start, and the rolling oil in the dirty oil tank is pumped to the clean oil tank through the circulating oil pump. After being filtered by the three-stage filtration device, the clean rolling oil is circulated to the copper foil rolling mill body through the pipeline for use. During the circulation process, the temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time, and automatically controls the operation of the heater according to the temperature conditions to ensure that the rolling oil circulates at an appropriate temperature, thereby realizing efficient recycling of the rolling oil.

[0005] The beneficial effects of the present invention are: reducing construction difficulty and cost: the depth of the traditional rolling mill basement is changed from -6.000m to -4.000m, and the area of ​​the underground space is reduced, the amount of earth excavation is reduced, and the construction cost is reduced; at the same time, the shallower pit has less impact on the existing factory foundation during construction, and there is no need for complex support of the factory columns, which greatly reduces the construction difficulty. Adaptability to different regional environments: In southern regions where the groundwater level is shallow, the depth of the pit is reduced, the difficulty of groundwater treatment is reduced, and the cost is also reduced, so that the layout structure can better adapt to the hydrogeological conditions of different regions. Reasonable use of space: some equipment in the original basement is arranged on the ±0.000m plane, which reduces the dependence on the underground space of the factory building, avoids the waste of factory building space caused by the equipment being far away from the factory building foundation, and makes more reasonable use of the factory building space; the parts not described in detail in this invention are existing common technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 It is a schematic diagram of the final assembly structure; In the figure: copper foil rolling mill main body 1, rolling mill auxiliary room 2, rolling mill pit 3. DETAILED DESCRIPTION

[0007] The present invention is further described in detail below with reference to the embodiments and specific implementation methods: Example 1

[0008] A copper foil rolling mill layout structure includes a copper foil rolling mill main body 1 and a rolling mill auxiliary room 2 arranged in the ±0.000m plane. A rolling mill pit 3 with a depth of -4.000m and a length and width of 3×3m is provided next to the copper foil rolling mill main body 1; a dirty oil tank is provided in the rolling mill pit 3, and an oil collecting pan is provided under the rolling mill arch of the copper foil rolling mill main body 1. The oil collecting pan is connected to the dirty oil tank in the rolling mill pit 3 and is used to allow the rolling oil to flow back to the dirty oil tank from the oil collecting pan by gravity; it also includes a circulating oil pump, a clean oil tank, a heater, and a high and low pressure pump system arranged in the rolling mill auxiliary room 2, one end of the circulating oil pump is connected to the dirty oil tank in the rolling mill pit 3, and the other end is connected to the clean oil tank, and is used to pump the rolling oil in the dirty oil tank to the clean oil tank; the clean oil tank is also connected to the copper foil rolling mill main body 1 through a pipeline, so that the filtered rolling oil is circulated to the copper foil rolling mill main body 1 for use. The pit wall of the rolling mill pit 3 adopts a reinforced concrete structure, and two layers of waterproof membranes are set on the inner wall of the reinforced concrete structure. The outer layer is SBS modified asphalt waterproof membrane, and the inner layer is a polymer self-adhesive waterproof membrane. A cement mortar leveling layer is set between the two layers of waterproof membranes. The connecting pipe between the oil collecting pan and the dirty oil tank in the rolling mill pit 3 is made of stainless steel with a diameter of DN100. An electromagnetic control valve is provided on the connecting pipe, and the electromagnetic control valve is connected to the electronic control system of the rolling mill; a sewage outlet is provided at the lowest point of the connecting pipe, and a sewage valve is installed at the sewage outlet. A three-stage filtering device is provided on the pipeline connecting the clean oil tank and the copper foil rolling mill body 1. The first stage is a coarse filter screen for filtering out impurities with a particle size greater than 50 μm; the second stage is a precision filter element with a filtration accuracy of 10 μm; and the third stage is an activated carbon adsorption layer. The circulating oil pump adopts a variable frequency speed regulating pump, and its speed is automatically adjusted by the rolling mill electronic control system. A liquid level sensor is provided in the rolling mill pit 3 and is connected to the electronic control system of the rolling mill. When the rolling oil level in the dirty oil tank reaches a preset upper limit, the electronic control system controls the circulating oil pump to start; when the liquid level reaches a preset lower limit, the electronic control system controls the circulating oil pump to stop running. The heater adopts a combination of an electric heating tube and a temperature control system. The temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time. When the temperature is lower than the set value, the electric heating tube is automatically started to heat the rolling oil; when the temperature reaches the set value, the electric heating tube stops working. Example 2

[0009] First, the copper foil rolling mill body 1 is installed on the ±0.000m plane, and a rolling mill pit 3 with a depth of -4.000m and a length and width of 3×3m is excavated next to the copper foil rolling mill body 1 according to the designed dimensions. After the excavation of the rolling mill pit 3 is completed, reinforced concrete is used to cast the pit wall. After the concrete reaches the designed strength, a cement mortar leveling layer, a polymer self-adhesive waterproof membrane, and an SBS modified asphalt waterproof membrane are laid on the inner wall of the pit in sequence to complete the waterproofing treatment. The dirty oil tank is placed in the rolling mill pit 3, and an oil collecting pan is installed under the rolling mill arch of the copper foil rolling mill body 1. The oil collecting pan is connected to the dirty oil tank through a stainless steel pipe with a diameter of DN100. At the same time, an electromagnetic control valve and a drain valve are installed on the pipe. Install a circulating oil pump and a clean oil tank at a suitable location on the ±0.000m plane. The circulating oil pump adopts a variable frequency speed regulation pump. Connect one end of the circulating oil pump to the dirty oil tank and the other end to the clean oil tank. Install a three-stage filtration device consisting of a coarse filter, a precision filter element, and an activated carbon adsorption layer in sequence on the pipeline connecting the clean oil tank to the main body of the copper foil rolling mill. Install the heater and high and low pressure pump systems at a suitable location on the ±0.000m plane. Install the temperature control system on the heater. Install a liquid level sensor in the rolling mill pit. Connect the liquid level sensor, electromagnetic control valve, circulating oil pump, heater, temperature control system, etc. to the electric control system of the rolling mill. During the copper foil production process, the rolling oil flows back from the oil collecting pan under the rolling mill arch to the dirty oil tank in the rolling mill pit 3 by gravity. When the rolling oil level in the dirty oil tank reaches the preset upper limit, the electronic control system controls the circulating oil pump to start, and the rolling oil in the dirty oil tank is pumped to the clean oil tank through the circulating oil pump. After being filtered by the three-stage filtration device, the clean rolling oil is circulated to the copper foil rolling mill main body 1 through the pipeline for use. During the circulation process, the temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time, and automatically controls the operation of the heater according to the temperature conditions to ensure that the rolling oil circulates at an appropriate temperature, thereby realizing efficient recycling of the rolling oil.

[0010] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A copper foil rolling mill arrangement structure, characterized in that: The invention comprises a copper foil rolling mill main body (1) arranged in a ±0.000m plane, and a rolling mill auxiliary room (2); a rolling mill pit (3) with a depth of -4.000m and a length and width of 3×3m is provided next to the copper foil rolling mill main body (1); a dirty oil tank is provided in the rolling mill pit (3); an oil collecting pan is provided under the rolling mill arch of the copper foil rolling mill main body (1); the oil collecting pan is connected to the dirty oil tank in the rolling mill pit (3) for allowing rolling oil to be discharged from the oil collecting pan to the rolling mill pit (3) The oil is returned to the dirty oil tank by gravity; the system also includes a circulating oil pump, a clean oil tank, a heater, and a high- and low-pressure pump system arranged in the rolling mill auxiliary room (2); one end of the circulating oil pump is connected to the dirty oil tank in the rolling mill pit (3), and the other end is connected to the clean oil tank, and is used to pump the rolling oil in the dirty oil tank to the clean oil tank; the clean oil tank is also connected to the copper foil rolling mill body (1) through a pipeline, so that the filtered rolling oil is circulated to the copper foil rolling mill body (1) for use.

2. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: The pit wall of the rolling mill pit (3) adopts a reinforced concrete structure. Two layers of waterproof membranes are arranged on the inner wall of the reinforced concrete structure, the outer layer is an SBS modified asphalt waterproof membrane, and the inner layer is a polymer self-adhesive waterproof membrane. A cement mortar leveling layer is arranged between the two layers of waterproof membranes.

3. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: The connecting pipe between the oil collecting tray and the dirty oil tank in the rolling mill pit (3) is made of stainless steel with a diameter of DN100. An electromagnetic control valve is provided on the connecting pipe, and the electromagnetic control valve is connected to the electric control system of the rolling mill. A sewage outlet is provided at the lowest point of the connecting pipe, and a sewage valve is installed at the sewage outlet.

4. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: A three-stage filtering device is provided on the pipeline connecting the oil clean tank and the copper foil rolling mill body (1). The first stage is a coarse filter screen for filtering out impurities with a particle size greater than 50 μm; the second stage is a precision filter element with a filtration accuracy of 10 μm; and the third stage is an activated carbon adsorption layer.

5. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: The circulating oil pump adopts a variable frequency speed regulating pump, and its speed is automatically adjusted by the rolling mill electronic control system.

6. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: A liquid level sensor is provided in the rolling mill pit (3), and the liquid level sensor is connected to the electric control system of the rolling mill. When the rolling oil level in the dirty oil tank reaches a preset upper limit, the electric control system controls the circulating oil pump to start; when the liquid level reaches a preset lower limit, the electric control system controls the circulating oil pump to stop running.

7. The copper foil rolling mill arrangement structure according to claim 1, characterized in that: The heater adopts a combination of an electric heating tube and a temperature control system. The temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time. When the temperature is lower than the set value, the electric heating tube is automatically started to heat the rolling oil; when the temperature reaches the set value, the electric heating tube stops working.

8. A method for applying the copper foil rolling mill arrangement structure as described in claim 1, characterized in that: First, the copper foil rolling mill body (1) is installed on the ±0.000m plane, and a rolling mill pit (3) with a depth of -4.000m and a length and width of 3×3m is excavated next to the copper foil rolling mill body (1) according to the design size. After the excavation of the rolling mill pit (3) is completed, the pit wall is poured with reinforced concrete. After the concrete reaches the design strength, a cement mortar leveling layer, a polymer self-adhesive waterproof membrane, and an SBS modified asphalt waterproof membrane are laid on the inner wall of the pit in sequence to complete the waterproofing treatment. The dirty oil tank is placed in the rolling mill pit (3), and an oil collecting pan is installed under the rolling mill arch of the copper foil rolling mill body (1). The oil collecting pan is connected to the dirty oil tank through a stainless steel pipe with a diameter of DN100, and an electromagnetic control valve and a drain valve are installed on the pipe. Install a circulating oil pump and a clean oil tank at a suitable location on the ±0.000m plane. The circulating oil pump adopts a variable frequency speed regulation pump. Connect one end of the circulating oil pump to the dirty oil tank and the other end to the clean oil tank. Install a three-stage filtration device consisting of a coarse filter, a precision filter element, and an activated carbon adsorption layer in sequence on the pipeline connecting the clean oil tank to the main body of the copper foil rolling mill. Install the heater and high and low pressure pump systems at a suitable location on the ±0.000m plane. Install the temperature control system on the heater. Install a liquid level sensor in the rolling mill pit. Connect the liquid level sensor, electromagnetic control valve, circulating oil pump, heater, temperature control system, etc. to the electric control system of the rolling mill. During the copper foil production process, the rolling oil flows back from the oil collecting pan under the rolling mill archway to the dirty oil tank in the rolling mill pit (3) by gravity. When the rolling oil level in the dirty oil tank reaches a preset upper limit, the electronic control system controls the circulating oil pump to start, and the rolling oil in the dirty oil tank is pumped to the clean oil tank through the circulating oil pump. After being filtered by the three-stage filter device, the clean rolling oil is circulated to the copper foil rolling mill body (1) through the pipeline for use. During the circulation process, the temperature control system monitors the temperature of the rolling oil in the clean oil tank in real time, and automatically controls the operation of the heater according to the temperature conditions to ensure that the rolling oil circulates at an appropriate temperature, thereby achieving efficient recycling of the rolling oil.

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