A controlled cooling device for reducing the microstructure grade of hot-rolled bar wire

Abstract

The patent discloses a kind of cooling device for reducing hot rolling bar rod wire organization level, including cooling box, the left and right side walls of cooling box are equipped with through opening, the left and right ends of the outer side wall of cooling box are fixedly installed with infrared thermometer, the right side wall of cooling box is embedded with water pipe, the side wall bottom of water pipe is embedded with spray head, the bottom of the left side wall of cooling box is embedded with circulating pipe, water pump is equipped on circulating pipe, the detachable filter screen is installed in the inside lower side of cooling box in the scheme, cooling water after contacting wire rod is filtered by filter screen, iron filings and other impurities in water are intercepted, filtered cooling water is recycled to cooling water source by circulating pipe, to avoid water resource waste, and filter screen can be disassembled, to facilitate the cleaning of blockage on filter screen.

Description

Technical Field

[0001] This patent relates to the field of wire rod controlled cooling technology, specifically a controlled cooling device for reducing the microstructure level of hot-rolled strip and bar wire. Background Technology

[0002] Traditionally, hot-rolled strip, bar, and wire rods enter a cooling box after exiting the finishing mill. The initial temperature (800-900℃) is first detected by an inlet infrared thermometer, and then cooling water is sprayed from nozzles to cool the wire rod (550-650℃). However, most of the existing cooling water is directly discharged after flowing down, easily leading to water waste, and iron filings mixed in the cooling water can easily clog the pipes. Therefore, we propose a controlled cooling device for reducing the microstructure of hot-rolled strip, bar, and wire rods. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this patent is to provide a controlled cooling device for reducing the microstructure of hot-rolled strip and wire rods. This solution involves installing a removable filter screen inside the lower side of the cooling box. The filter screen can filter the cooling water after it comes into contact with the wire rod, trapping impurities such as iron filings in the water. The filtered cooling water is then circulated back to the cooling water source through a circulation pipe for reuse, avoiding water waste. Furthermore, the filter screen can be disassembled for easy cleaning of any blockages.

[0004] The technical solution adopted by this patent to solve its technical problem is: a controlled cooling device for reducing the microstructure level of hot-rolled strip, bar and wire, including a cooling box, with openings on both the left and right side walls of the cooling box, infrared thermometers fixedly installed at both ends of the left and right sides of the outer side wall of the cooling box, a water pipe embedded in the right side wall of the cooling box, a nozzle embedded in the bottom of the side wall of the water pipe, a circulation pipe embedded in the bottom of the left side wall of the cooling box, and a water pump installed on the circulation pipe; The cooling box has a filter screen on its lower interior side; The cooling box has a connecting groove on its inner right side wall. A connecting plate is fixedly installed on the right end of the filter screen. An mounting plate is fixedly installed on the right end of the connecting plate. There are round holes at the four corners of the right side of the mounting plate. Bolts are installed in the round holes. The left end of the bolts is screwed into the outer right side wall of the cooling box.

[0005] Furthermore, the inner wall of the cooling box is provided with filter grooves on all four sides, and the four sides of the filter are respectively inserted into the filter grooves.

[0006] Furthermore, the inner wall of the circular hole is provided with an annular groove, and a connecting ring is fixedly installed on the threaded side wall of the bolt, the connecting ring being located within the annular groove.

[0007] Furthermore, the threaded sidewall of the bolt does not contact the inner sidewall of the circular hole, and the outer sidewall of the connecting ring is slidably mounted on the inner sidewall of the circular groove.

[0008] Furthermore, the mounting plate includes a first plate body and a second plate body.

[0009] Furthermore, a mounting hole is provided in the middle of the right side surface of the second plate, and a threaded rod is fixedly installed in the middle of the right side surface of the first plate. The right end of the threaded rod passes through the mounting hole and is screwed with a nut.

[0010] The beneficial effects of this patent are: 1. This solution uses a removable filter screen installed on the lower side of the cooling box to filter the cooling water after it comes into contact with the wires, trapping impurities such as iron filings in the water. The filtered cooling water is then circulated back to the cooling water source through a circulation pipe for reuse, avoiding water waste. The filter screen is also removable, making it easy to clean any blockages. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of this patent.

[0012] Figure 2 This is a schematic diagram of the structure of this patent.

[0013] Figure 3 This is a schematic diagram of the detachable panel of this patent.

[0014] Explanation of reference numerals in the attached drawings: 1 Cooling box, 2 Inlet, 3 Infrared thermometer, 4 Water pipe, 5 Nozzle, 6 Circulation pipe, 7 Water pump, 8 Filter screen, 9 Connecting plate, 10 Mounting plate, 11 Round hole, 12 Bolt, 13 Filter screen groove, 14 Circular groove, 15 Connecting ring, 16 First plate, 17 Second plate, 18 Threaded rod, 19 Nut. Detailed Implementation

[0015] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0016] See Figure 1 , Figure 2 , Figure 3This is a schematic diagram of the structure of this patent. A controlled cooling device for reducing the microstructure of hot-rolled strip, bar and wire includes a cooling box 1. The left and right side walls of the cooling box 1 are provided with openings 2. Infrared thermometers 3 are fixedly installed at both ends of the left and right sides of the outer side wall of the cooling box 1. A water pipe 4 is embedded in the right side wall of the cooling box 1. A nozzle 5 is embedded in the bottom of the side wall of the water pipe 4. A circulation pipe 6 is embedded in the bottom of the left side wall of the cooling box 1. A water pump 7 is installed on the circulation pipe 6. Cooling box 1 Parameters: Length, width, and height can be determined according to the actual specifications and production requirements of hot-rolled strip, bar, and wire. For example, the length is about 1500mm, the width is about 800mm, and the height is about 1000mm (this is just an example; the actual dimensions need to be designed according to the production line).

[0017] Material: Made of Q235 steel plate, which has good strength and corrosion resistance and can withstand the impact of cooling water and certain environmental corrosion.

[0018] Port 2 Parameters: The dimensions are determined based on the maximum diameter of the hot-rolled strip, bar, or wire, for example, a circular opening with a diameter of 200mm (actual dimensions must match the wire specifications).

[0019] The infrared thermometer 3 can be equipped with the CT 2M (optris brand): It offers temperature ranges of 250 - 800°C (2ML) and 385 - 1600°C (2MH), meeting various usage requirements, and features optical resolutions of 40:1 and 75:1. The system accuracy is ±(0.3% of reading + 2°C) (ambient temperature 23±5°C), repeatability is ±(0.1% of reading + 1°C) (ambient temperature 23±5°C), and it boasts a 1ms fast response time. The probe operates at an ambient temperature of 125°C without cooling, making it suitable for environments with controlled cooling systems, achieving an environmental rating of IP65 (NEMA - 4).

[0020] Parameters: Measurement range is 0 - 1200℃, accuracy is ±1℃, response time is less than 500ms, which can quickly and accurately detect the temperature of hot-rolled strip, bar and wire.

[0021] Material: The outer shell is made of aluminum alloy, which has good heat dissipation and lightness; the internal core components are infrared detection elements, etc., depending on the selected brand and model.

[0022] Water pipe 4 Parameters: Pipe diameter is DN50 (can be adjusted according to cooling water flow requirements), length is determined according to the width of cooling box 1, for example, about 800mm in length.

[0023] Material: Made of stainless steel pipe (such as 304 stainless steel), which has good corrosion resistance and prevents the pipe from rusting and being damaged by long-term flushing by cooling water.

[0024] Nozzle 5 Parameters: Spray angle is 90° - 120°, and the flow rate is determined according to the actual cooling requirements, for example, the flow rate of each nozzle is 10L / min.

[0025] Material: Made of copper alloy, which has good thermal conductivity and corrosion resistance, ensuring the service life of the nozzle.

[0026] Circulation pipe 6 Parameters: Pipe diameter is DN80 (can be adjusted according to circulation flow requirements), and the length is determined based on the distance between cooling box 1 and the cooling water source.

[0027] Material: Made of stainless steel pipe (such as 304 stainless steel), with good corrosion resistance, suitable for transporting circulating water.

[0028] Pump 7 can be selected from the Qilu BQS50-30-7.5 / B mining explosion-proof submersible pump for sewage and sand discharge. Its rated flow rate is 50 cubic meters per hour, rated head is 30 meters, and the matching motor has a rated power of 7.5 kilowatts, meeting the flow rate, head, and power requirements of the circulating pipe for cooling water circulation. Furthermore, this pump adopts an open impeller and wide flow channel structure, providing strong anti-clogging capability; it features a two-stage mechanical seal (hard alloy material) + oil chamber isolation to prevent water and impurities from entering the motor, ensuring high sealing performance. However, it is suitable for special scenarios such as underground coal mines containing explosive gases. If the application scenario does not have special requirements such as explosion protection, it can also be used as a reliable choice for general operating conditions.

[0029] Parameters: Flow rate is 50m³ / h, head is 30m, power is 7.5kW, which can meet the needs of cooling water circulation and transportation.

[0030] Material: The pump body is made of cast iron, and the impeller is made of stainless steel, which has good strength and corrosion resistance.

[0031] A filter screen 8 is provided on the lower side of the interior of the cooling box 1; Filter 8 Parameters: The mesh size is 0.5mm (which can be adjusted according to the size of the iron filings to be filtered), and the filter area matches the area of ​​the lower side of the cooling box 1, for example, 1400mm in length and 700mm in width.

[0032] Material: Made of stainless steel wire mesh (such as 316 stainless steel), which has good corrosion resistance and strength, can effectively trap iron filings and is not easily damaged.

[0033] The cooling box 1 has a connecting groove on the inner right side wall. The filter screen 8 is fixedly installed with a connecting plate 9. The connecting plate 9 is fixedly installed with a mounting plate 10. The mounting plate 10 has round holes 11 at the four corners of the right side. Bolts 12 are installed in the round holes 11. The left end of the bolts 12 is screwed into the outer right side wall of the cooling box 1.

[0034] Traditionally, hot-rolled strip and wire rod enter a cooling box after exiting the finishing mill. The initial temperature (800-900℃) is first detected by an infrared thermometer at the inlet, and then cooling water is sprayed out through nozzles to cool the wire rod (550-650℃). However, most of the existing cooling water is discharged directly after flowing down, which easily leads to water waste, and the iron filings mixed in the cooling water can easily clog the pipes.

[0035] This solution features a removable filter installed on the lower side of the cooling box. The filter filters the cooling water that comes into contact with the wires, trapping impurities such as iron filings. The filtered cooling water is then circulated back to the cooling water source through a circulation pipe for reuse, avoiding water waste. The filter is also removable, making it easy to clean any blockages.

[0036] Specifically, the inner wall of the cooling box 1 is provided with filter grooves 13 on all four sides, and the four sides of the filter 8 are respectively inserted into the filter grooves 13.

[0037] The filter slot 13 is designed to conveniently limit the installation position of the filter 8 within the cooling box 1.

[0038] Specifically, the inner wall of the circular hole 11 is provided with an annular groove 14, and a connecting ring 15 is fixedly installed on the threaded rod side wall of the bolt 12, with the connecting ring 15 located inside the annular groove 14.

[0039] By setting the connecting ring 15 inside the annular groove 14, the effect of the bolt 12 and the mounting plate 10 as a whole is increased. When the mounting plate 10 and the cooling box 1 are disassembled to clean the filter screen 8, the bolt 12 is prevented from coming out of the circular hole 11 and causing the parts to be lost.

[0040] Specifically, the threaded sidewall of bolt 12 does not contact the inner sidewall of the circular hole 11, and the outer sidewall of connecting ring 15 is slidably mounted on the inner sidewall of the annular groove 14.

[0041] By ensuring that the threaded sidewall of bolt 12 does not contact the inner wall of the round hole 11, frictional resistance is avoided when the bolt 12 is rotated as the threaded sidewall of bolt 12 contacts the round hole 11.

[0042] The connecting ring 15 is slidably mounted on the inner wall of the annular groove 14 via the outer wall, which limits the movement trajectory of the bolt 12, so that it can only move linearly left and right within the circular hole 11, thus preventing wobbling.

[0043] Specifically, the mounting plate 10 includes a first plate body 16 and a second plate body 17.

[0044] By dividing the mounting plate 10 into a first plate 16 and a second plate 17, it is convenient to open the internal annular groove 14 in the early stage, and it is also convenient to install the connecting ring 15 in the annular groove 14.

[0045] Specifically, the second plate 17 has a mounting hole in the middle of its right side surface, and a threaded rod 18 is fixedly installed in the middle of the right side surface of the first plate 16. The right end of the threaded rod 18 passes through the mounting hole and is screwed with a nut 19.

[0046] Working principle: The port 2 is used to accommodate the transmission mechanism for conveying the wire. The transmission mechanism passes through the port 2. The infrared thermometer 3 on the left side detects the temperature of the wire. The wire enters the cooling box 1. Cooling water is sprayed out through the nozzle 5 to cool the wire. After the cooling water comes into contact with the wire, it falls through the filter screen 8. Iron filings in the water are trapped by the filter screen 8.

[0047] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.

[0048] This solution features a removable filter installed on the lower side of the cooling box. The filter filters the cooling water that comes into contact with the wires, trapping impurities such as iron filings. The filtered cooling water is then circulated back to the cooling water source through a circulation pipe for reuse, avoiding water waste. The filter is also removable, making it easy to clean any blockages.

[0049] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0050] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A controlled cooling device for reducing the hot rolled bar wire rod microstructure grade, characterized by: The cooling box (1) includes a cooling box (1), which has openings (2) on both the left and right side walls. Infrared thermometers (3) are fixedly installed on both the left and right ends of the outer side wall of the cooling box (1). A water pipe (4) is embedded in the right side wall of the cooling box (1). A nozzle (5) is embedded in the bottom of the side wall of the water pipe (4). A circulation pipe (6) is embedded in the bottom of the left side wall of the cooling box (1). A water pump (7) is installed on the circulation pipe (6). The cooling box (1) has a filter screen (8) on the lower inside. The cooling box (1) has a connecting groove on its inner right side wall. A connecting plate (9) is fixedly installed on the right end of the filter screen (8). An installation plate (10) is fixedly installed on the right end of the connecting plate (9). A round hole (11) is provided at each of the four corners of the right side of the installation plate (10). A bolt (12) is provided in the round hole (11). The left end of the bolt (12) is screwed into the outer right side wall of the cooling box (1).

2. A controlled cooling device for reducing the microstructure grade of hot-rolled bar and wire rod according to claim 1, characterized in that: The cooling box (1) has filter grooves (13) on all four sides of its inner wall, and the filter (8) is inserted into the filter grooves (13) on all four sides.

3. A controlled cooling device for reducing the microstructure grade of hot rolled bar and wire rod as claimed in claim 1, wherein: The inner wall of the circular hole (11) is provided with an annular groove (14), and a connecting ring (15) is fixedly installed on the threaded rod side wall of the bolt (12), and the connecting ring (15) is located in the annular groove (14).

4. A controlled cooling device for reducing the microstructure grade of hot-rolled bar and wire rod according to claim 3, characterized in that: The threaded sidewall of the bolt (12) does not contact the inner sidewall of the circular hole (11), and the outer sidewall of the connecting ring (15) is slidably mounted on the inner sidewall of the circular groove (14).

5. A controlled cooling device for reducing the microstructure grade of hot-rolled strip, bar, and wire according to claim 1, characterized in that: The mounting plate (10) includes a first plate body (16) and a second plate body (17).

6. A controlled cooling device for reducing the microstructure grade of hot rolled bar wire according to claim 5, characterized in that: The second plate (17) has a mounting hole in the middle of its right side surface, and a threaded rod (18) is fixedly installed in the middle of the right side surface of the first plate (16). The right end of the threaded rod (18) passes through the mounting hole and is screwed with a nut (19).

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