Rinsing spray device for cold-rolled steel strip

Abstract

This disclosure relates to the technical field of spray treatment for cold-rolled steel strip. One embodiment of this disclosure provides a rinsing and spraying device for cold-rolled steel strip, comprising: an outer frame and several conveyor rollers, all of which are rotatably connected inside the outer frame. Some of the conveyor rollers are electrically driven to rotate. A straightening conveyor assembly is disposed inside the outer frame. Main pipes are disposed on one side of the outer frame. A spray cleaning assembly is disposed on the outer frame and the main pipes. The spray cleaning assembly includes several horizontal pipes, which are arranged in two rows connected inside the outer frame. The horizontal pipes are all connected to the main pipes. Several nozzles are disposed on the surface of the horizontal pipes, and the nozzles adopt a spiral structure. Through the above technical solution, the problem of poor spraying effect in the prior art is solved. Traditional spraying devices often use nozzles with fixed angles and flow rates, which are difficult to fully cover the surface of the steel strip, resulting in insufficient rinsing in some areas, leaving oil stains, iron filings and other impurities, affecting subsequent processing and the corrosion resistance and appearance quality of the steel strip.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of spray treatment of cold-rolled steel strip, and more specifically, to a rinsing and spraying device for cold-rolled steel strip. Background Technology

[0002] In the production process of cold-rolled steel strip, the rinsing and spraying process plays a crucial role in ensuring the cleanliness of the steel strip surface and improving product quality. However, existing cold-rolled steel strip rinsing and spraying devices have many problems in practical applications. On the one hand, the spraying effect is poor. Traditional spraying devices often use nozzles with fixed angles and flow rates, which are difficult to fully cover the steel strip surface. This results in some areas being insufficiently rinsed, leaving behind impurities such as oil, iron filings, etc., which affect subsequent processing and the corrosion resistance and appearance quality of the steel strip. On the other hand, the steel belt lacks stability during transport. Due to factors such as the installation precision of the conveyor rollers and fluctuations in the transmission system, the steel belt is prone to deviation and vibration during transmission, failing to accurately align with the spray area of ​​the nozzles, thus further deteriorating the spraying effect. This not only wastes water and cleaning agents but also requires frequent shutdowns for adjustments, reducing production efficiency and increasing production costs. Furthermore, some devices lack real-time monitoring and automatic adjustment functions for spraying effect and steel strip conveying status, making it difficult to adapt to the rinsing needs of cold-rolled steel strips of different specifications and production requirements. Therefore, there is an urgent need to develop a cold-rolled steel strip rinsing spraying device that can effectively improve spraying effect and enhance conveying stability to meet the high-quality and high-efficiency requirements of modern cold-rolled steel strip production. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a cold-rolled steel strip rinsing spray device, which solves the technical problems of poor spraying effect in the prior art. Traditional spray devices often use nozzles with fixed angles and flow rates, which are difficult to fully cover the surface of the steel strip, resulting in insufficient rinsing in some areas and the residue of impurities such as oil stains and iron filings, which affects subsequent processing and the corrosion resistance and appearance quality of the steel strip.

[0004] According to one aspect, at least one embodiment of this disclosure provides a rinsing spray apparatus for cold-rolled steel strip, comprising: The outer frame and several conveyor rollers are rotatably connected inside the outer frame, and some of the conveyor rollers are driven to rotate by electricity. A corrective conveying assembly is disposed inside the outer frame; A pair of main pipes and a spray cleaning assembly, wherein the main pipes are both located on one side of the external frame, and the spray cleaning assembly is located on the external frame and the main pipes; The spray cleaning assembly includes several horizontal pipes, which are arranged in two rows and connected to the outer frame. Each horizontal pipe is connected to the main pipe, and several nozzles are provided on the surface of the horizontal pipes. The nozzles adopt a spiral structure.

[0005] As a further technical solution, a wastewater collection hood is provided at the bottom of the outer frame. The wastewater collection hood is connected to the interior of the outer frame. A pusher auger is provided inside the wastewater collection hood. One side of the wastewater collection hood has an open structure.

[0006] As a further technical solution, a collection box is fixedly connected to the bottom of the outer frame. The collection box is located below the opening end of the wastewater collection hood. A filter screen is installed inside the collection box, and a discharge pipe is provided on one side of the collection box.

[0007] As a further technical solution, the correction conveying assembly includes a pair of drive rollers, both of which are rotatably connected inside the outer frame. The surface height of the drive rollers is the same as that of the conveying rollers, and the drive rollers are driven to rotate by electricity.

[0008] As a further technical solution, a fixing plate is provided at both ends of the surface of the drive roller, and a screw is connected to the fixing plate by a threaded connection. A straightening block is movably fitted at both ends of the drive roller, and one end of the screw is rotatably connected to the straightening block.

[0009] As a further technical solution, both ends of the top of the outer frame are provided with shielding plates, which are fixed at an inclined angle.

[0010] As a further technical solution, the bottom section of the collection box is an inclined structural surface.

[0011] As a further technical solution, a pair of inclined bosses are provided at the bottom of the outer frame, and the inclined bosses are located on both sides of several horizontal pipes.

[0012] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the spray cleaning assembly, through its design of two rows of horizontal pipes and a spiral nozzle structure, completely solves the problem of incomplete coverage in traditional spray devices. The two rows of horizontal pipes are symmetrically distributed above and below the steel strip, allowing simultaneous spraying of both sides. The spiral nozzles atomize the water flow into a fan-shaped spray curtain, comprehensively covering the steel strip surface and effectively removing impurities such as oil and iron filings. This prevents residual impurities from affecting subsequent processing and the steel strip's corrosion resistance and appearance quality. Furthermore, the connection design between the horizontal pipes and the main pipe ensures uniform water distribution. Combined with a wastewater collection hood, a pusher auger, and a collection box, this achieves efficient recovery and filtration of rinsing water, reducing water waste while maintaining internal dryness and ensuring the stability of the spraying effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is a cross-sectional view of the present disclosure; Figure 4 This is another sectional view of the present disclosure; Figure 5 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Outer frame; 2. Conveyor roller; 3. Main pipe; 4. Spray cleaning assembly; 4-1. Horizontal pipe; 4-2. Nozzle; 4-3. Wastewater collection hood; 4-4. Pushing auger; 4-5. Collection box; 4-6. Filter screen; 4-7. Discharge pipe; 5. Straightening conveyor assembly; 5-1. Drive roller; 5-2. Fixing plate; 5-3. Screw; 5-4. Straightening block; 6. Baffle plate; 7. Inclined boss. Detailed Implementation

[0015] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0016] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0017] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0018] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0020] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] like Figures 1-5 As shown, it illustrates a cold-rolled steel strip rinsing spray apparatus according to an embodiment of the present disclosure, comprising: The outer frame 1 and several conveying rollers 2 are rotatably connected inside the outer frame 1, and some of the conveying rollers 2 are driven to rotate by electricity. Correction and conveying assembly 5, which is disposed inside the outer frame 1; A pair of main pipes 3 and a spray cleaning assembly 4, wherein the main pipes 3 are both located on one side of the outer frame 1, and the spray cleaning assembly 4 is located on the outer frame 1 and the main pipes 3; The spray cleaning assembly 4 includes several horizontal pipes 4-1, which are arranged in two rows and connected to the outer frame 1. Each horizontal pipe 4-1 is connected to the main pipe 3. Several nozzles 4-2 are provided on the surface of each horizontal pipe 4-1. The nozzles 4-2 adopt a spiral structure. A wastewater collection hood 4-3 is provided at the bottom of the outer frame 1. The wastewater collection hood 4-3 is connected to the interior of the outer frame 1. A pusher auger 4-4 is provided inside the wastewater collection hood 4-3. One side of the wastewater collection hood 4-3 is open. A collection box 4-5 is fixedly connected to the bottom of the outer frame 1. The collection box 4-5 is located below the open end of the wastewater collection hood 4-3. A filter screen 4-6 is installed inside the collection box 4-5. A discharge pipe 4-7 is provided on one side of the collection box 4-5.

[0022] In some examples, in order to achieve the effect of full coverage spraying and wastewater recycling on the surface of cold-rolled steel strip, a spray cleaning component 4 was designed. This component includes two rows of horizontal pipes 4-1 set in the outer frame 1, both of which are connected to the main pipe 3 and are symmetrically distributed above and below the steel strip. The spiral structure nozzles 4-2 on the surface of the pipes can atomize the rinsing water into a fan-shaped spray curtain to cover the entire width of the steel strip.

[0023] The wastewater collection hood 4-3 at the bottom of the outer frame 1 receives wastewater, and its inclined inner wall design guides the wastewater into the bottom auger 4-4. As the auger rotates, it pushes the wastewater to the open end, where it falls into the filter screen 4-6 inside the collection box 4-5 below. Impurities are separated, and the wastewater flows into the discharge pipe 4-7. This continuous spraying, collection, and filtration structure achieves a rinsing water recovery rate of over 85%, reducing water waste. For example, when processing a 1.2m wide steel strip, the double-row nozzles 4-2 spray simultaneously, and the wastewater is transported to the collection box 4-5 via the auger. The filter screen 4-6 intercepts impurities such as iron filings, ensuring that the discharged water meets environmental standards.

[0024] like Figures 1-5 As shown in the figure, the corrective conveying assembly 5 in this embodiment includes a pair of drive rollers 5-1. The drive rollers 5-1 are rotatably connected inside the outer frame 1. The surface height of the drive rollers 5-1 is the same as that of the conveying rollers 2. The drive rollers 5-1 are driven to rotate by electricity. Fixed plates 5-2 are provided at both ends of the surface of the drive rollers 5-1. Screws 5-3 are connected to the fixed plates 5-2 by threaded connection. Corrective blocks 5-4 are movably fitted at both ends of the drive rollers 5-1. One end of the screw 5-3 is rotatably connected to the corrective block 5-4.

[0025] In some examples, to achieve the effect of maintaining the centering position during the steel strip conveying process, a straightening conveying assembly 5 is designed. This assembly includes a pair of drive rollers 5-1 set inside the outer frame 1, both driven by a motor, with their surface height flush with the conveying rollers 2. Screws 5-3 are threadedly connected to the fixing plates 5-2 at both ends. One end of each screw 5-3 is rotatably connected to a straightening block 5-4 mounted on the drive roller 5-1. When the screw 5-3 rotates, the straightening block 5-4 moves axially along the drive roller 5-1, and its inner inclined end face contacts the edge of the steel strip, forming a lateral thrust to correct the deviation. For example, when the steel strip deviates to the right, the right-side straightening block 5-4 is screwed in by the screw 5-3, pushing the edge of the steel strip with uniform pressure, returning it to the center position.

[0026] The anti-slip treatment on the surface of the drive roller 5-1 prevents scratches on the steel strip surface. For steel strips of different widths, only the screws 5-3 on both sides need to be adjusted synchronously to make the spacing of the straightening blocks 5-4 match the width of the steel strip. No parts need to be replaced, ensuring that the steel strip remains centered during the conveying process and providing a stable processing benchmark for the subsequent rinsing process.

[0027] For example, such as Figure 1 As shown, both ends of the top of the outer frame 1 are provided with a shielding plate 6, and the shielding plate 6 is fixed at an inclined angle.

[0028] In some examples, the inclined baffles 6 at both ends of the top of the outer frame 1 are made of acid and alkali resistant polycarbonate, which can effectively block splashing rinsing water and impurities during the spraying process. Their inclined design allows splashed water to slide smoothly into the interior of the outer frame 1, forming a splash barrier with the wastewater collection hoods 4-3 below, preventing water droplets from overflowing and polluting the surrounding environment or equipment. For example, when high-speed sprayed rinsing water impacts the steel belt and splashes, the baffles 6 can intercept more than 90% of the water, ensuring the work area is dry and clean, while reducing the risk of equipment failure due to long-term liquid corrosion and extending the service life of the equipment.

[0029] For example, such as Figure 4 As shown, the bottom section of the inner part of the collection box 4-5 is an inclined structural surface.

[0030] In some examples, the inclined structural surface at the bottom of the collection tank 4-5 faces the discharge pipe 4-7, allowing the filtered wastewater to quickly collect to the outlet under gravity, preventing residue. When rinsing water flows into the bottom of the tank through the filter screen 4-6, the inclined surface guides the water flow to the lowest point of the discharge pipe 4-7, reducing the amount of wastewater residue in the tank. For example, when the equipment is shut down for cleaning, the residual wastewater is automatically drained, facilitating quick replacement of the filter screen 4-6, reducing the frequency of manual cleaning, improving maintenance efficiency, and preventing long-term stagnation of wastewater from breeding bacteria or corroding the tank.

[0031] For example, such as Figure 2 As shown, a pair of inclined bosses 7 are provided at the bottom of the inner side of the outer frame 1, and the inclined bosses 7 are located on both sides of several horizontal pipes 4-1.

[0032] In some examples, the inclined bosses 7 at the bottom of the outer frame 1 are located on both sides of the horizontal pipe 4-1, effectively preventing the spray water from spreading and guiding the water flow to the wastewater collection hood 4-3. The boss surface is smooth and inclined towards the collection hood, allowing the spray water to flow quickly into the collection area along the boss slope, preventing water accumulation from affecting the steel belt conveyor. For example, when the upper and lower surfaces of the steel belt are sprayed with force, the bosses gather the dispersed water flow, which, together with the collection hood and auger, improves the wastewater collection efficiency, ensures that the inside of the outer frame 1 is dry, maintains the normal operation of the conveyor roller 2 and the drive roller 5-1, and ensures the stable operation of the rinsing process.

[0033] In practical use: The cold-rolled steel strip is fed in from one end of the outer frame 1. The electrically driven conveyor roller 2 rotates, driving the steel strip forward. At the same time, the drive roller 5-1 of the straightening conveyor assembly 5 operates synchronously. The operator adjusts the straightening blocks 5-4 at both ends of the drive roller 5-1 by rotating the screw 5-3, so that the inclined end face of the inner side of the straightening block 5-4 contacts the edge of the steel strip, forming a lateral thrust to correct the steel strip's deviation and ensure that the steel strip remains centered during the conveying process. After the main pipe 3 is connected to the rinsing water source, the water flow is diverted through the main pipe 3 to the two rows of horizontal pipes 4-1 inside the outer frame 1, and then sprayed out through the spiral structure nozzles 4-2 on the surface of the horizontal pipes 4-1, forming a fan-shaped spray curtain covering the upper and lower surfaces of the steel strip, achieving full-width spray cleaning. The wastewater generated by the spraying is guided by the inclined boss 7 at the bottom of the outer frame 1 and flows into the wastewater collection hood 4-3. It is then transported to the collection box 4-5 by the internal pusher auger 4-4. After being filtered by the filter screen 4-6, it flows out from the discharge pipe 4-7. Throughout the process, the baffle plate 6 blocks water splashing, keeps the inside and surrounding environment of the device clean, and completes the continuous rinsing operation of the steel belt.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A cold-rolled steel strip rinsing and spraying device, characterized in that, include: The outer frame (1) and several conveying rollers (2) are rotatably connected inside the outer frame (1), and some of the conveying rollers (2) are driven to rotate by electricity; A correction conveying assembly (5) is disposed inside the outer frame (1); A pair of main pipes (3) and a spray cleaning assembly (4), wherein the main pipes (3) are both located on one side of the outer frame (1), and the spray cleaning assembly (4) is located on the outer frame (1) and the main pipes (3); The spray cleaning assembly (4) includes several horizontal pipes (4-1), which are divided into two rows and connected to the outer frame (1). The horizontal pipes (4-1) are all connected to the main pipe (3). Several nozzles (4-2) are provided on the surface of the horizontal pipes (4-1), and the nozzles (4-2) adopt a spiral structure.

2. The cold-rolled steel strip rinsing and spraying device according to claim 1, characterized in that, The bottom of the outer frame (1) is provided with a wastewater collection cover (4-3), which is connected to the interior of the outer frame (1). A pusher auger (4-4) is provided inside the wastewater collection cover (4-3), and one side of the wastewater collection cover (4-3) is an open structure.

3. The cold-rolled steel strip rinsing and spraying device according to claim 2, characterized in that, The bottom of the outer frame (1) is fixedly connected to a collection box (4-5). The collection box (4-5) is located below the opening end of the wastewater collection cover (4-3). A filter screen (4-6) is installed inside the collection box (4-5). A discharge pipe (4-7) is provided on one side of the collection box (4-5).

4. The cold-rolled steel strip rinsing and spraying device according to claim 1, characterized in that, The corrective conveying assembly (5) includes a pair of drive rollers (5-1), both of which are rotatably connected inside the outer frame (1). The surface height of the drive rollers (5-1) is the same as that of the conveying rollers (2), and the drive rollers (5-1) are driven to rotate by electricity.

5. The cold-rolled steel strip rinsing and spraying device according to claim 4, characterized in that, The drive roller (5-1) has a fixing plate (5-2) at both ends of its surface. A screw (5-3) is connected to the fixing plate (5-2) by a threaded connection. A straightening block (5-4) is movably fitted to both ends of the drive roller (5-1). One end of the screw (5-3) is rotatably connected to the straightening block (5-4).

6. The cold-rolled steel strip rinsing and spraying device according to claim 1, characterized in that, Both ends of the top of the outer frame (1) are provided with shielding plates (6), and the shielding plates (6) are fixed at an inclined angle.

7. The cold-rolled steel strip rinsing and spraying device according to claim 3, characterized in that, The bottom section of the collection box (4-5) has an inclined structural surface.

8. The cold-rolled steel strip rinsing and spraying device according to claim 1, characterized in that, The bottom of the outer frame (1) is provided with a pair of inclined bosses (7), which are located on both sides of several horizontal pipes (4-1).

Images