Laminar flow side spraying device capable of converting positions

Abstract

The utility model relates to the technical field, in particular to a laminar flow side spraying device capable of converting positions. A stainless steel side spraying pipe with a plurality of nozzles is used for removing surface cooling water during strip steel production, can be used for side spraying and can also be used for transverse reverse spraying, the capacity of purging water on a plate area is higher, and the purging area is wide. The front portion of a side spray pipe is stewed into a bent angle to form a side spray pipe bent section and a side spray pipe straight section, the front end of the side spray pipe bent section is sealed, a rubber pipe is connected to the side spray pipe bent section, and the other end of the rubber pipe is connected with a pipe connector. A plurality of nozzles are arranged on the side spray pipe straight section at intervals, and a screwed plug is arranged at the rear end of the side spray pipe straight section; the side spray pipe is supported and connected by the movable bracket and the fixed bracket, and the side spray pipe is rotationally connected with the movable bracket. The use position can be rapidly and manually switched, longitudinal side spraying can be switched into transverse reverse spraying, dual-purpose side spraying and reverse spraying purging are achieved, the residual accumulated water blocking efficiency is high, the instrument detection precision is improved, the product quality is improved, and the product market competitiveness is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling equipment in steel plants, namely a laminar side spray device with switchable positions. It is a stainless steel side spray pipe with multiple nozzles, which is used to remove surface cooling water during strip production and can be used for side spraying or horizontal reverse spraying. Background Art

[0002] In the prior art, the hot rolling 1560 production line rolls more than 3 million tons of steel plates per year. Due to the different production process requirements such as the type of rolled steel, strip steel composition, organizational properties, plate width, plate thickness, cooling speed, and coiling temperature control, the number and time of opening the laminar cooling header and the water curtain cooling are also different. When too many headers are opened for a long time, the amount of cooling water on the plate surface increases. The side spray device with nozzles is set at the exit of the six-stage laminar cooling. The nozzles are too concentrated, and the purge capacity is often insufficient, which cannot meet the existing production process requirements. After the purge, water will remain on the plate surface, and the accumulated water will flow forward on the upper surface of the fast-running strip steel, forming a thicker water layer and hot steam entering the instrument detection area, directly affecting the accuracy of the instrument detection transmission signal. In severe cases, steel pile-up will occur, causing shutdown and production accidents. In addition, too much residual water on the upper surface of the strip steel causes uneven cooling of the upper and lower surfaces of the strip steel, and the strip steel will have defects such as buckling, wave shape, watermark, bright band, phase change, etc., which cannot meet customer needs, reduce production quality, and cause economic losses. Utility Model Content

[0003] The utility model aims to provide a laminar flow side spray device with switchable position in view of the above-mentioned shortcomings.

[0004] The technical solution of the utility model is: a laminar side spray device with switchable position, including a side spray pipe, on which a nozzle is connected, characterized in that the front part of the side spray pipe is bent into an angle to form a bent section and a straight section of the side spray pipe, the front end of the bent section of the side spray pipe is sealed, a rubber hose is connected to the bent section of the side spray pipe, and the other end of the rubber hose is connected to a pipe joint; a plurality of nozzles are arranged at intervals on the straight section of the side spray pipe, and the rear end of the straight section of the side spray pipe is provided with a wire plug; the side spray pipe is supported and connected by a movable bracket and a fixed bracket, and the side spray pipe is rotatably connected to the movable bracket.

[0005] The above scheme also includes:

[0006] Another fixed bracket is welded on the outer side of the roller guard plate opposite to the movable bracket.

[0007] The movable bracket is made of round steel to form a U-shaped piece with high sides and wide inside. A bolt with a rotatable outer sleeve is welded at the center of the bottom outer side, and a nut is screwed on one end of the bolt with threads facing downward.

[0008] The bending angle is 15 degrees.

[0009] The advantages of the utility model are as follows: 1. A movable bracket is provided, and the use position can be quickly and manually switched, so that the longitudinal side spray can be switched to the lateral reverse spray, which is suitable for the production process needs. A large number of laminar flow headers are opened. When the water accumulation on the plate surface increases, the reverse blowing effect is better, and the nozzle angle does not need to be adjusted. 2. The side spray pipe adopts multiple nozzles, the side spray pipe is lengthened, the nozzle distance is pulled apart, the blowing area is increased, and the fan-shaped spray of the nozzle can cover the width of the roller without leaving a dead angle, and the blowing capacity is enhanced. 3. When the laminar flow roller and the curling machine contain steel and pile steel, it can be retracted to the side spray position in time, with a moderate height, safe and reliable, flexible and convenient; when repairing the roller, it is easy to disassemble and install, saving time and effort, and the nozzle blockage can be unblocked at any time, and the end wire plug can be opened regularly to drain and flush the pipeline conveniently and quickly. 4. The dual-purpose side spray and reverse spray conversion blowing have high efficiency in blocking residual water accumulation, stronger ability to blow water on the plate surface, wide blowing area, improved instrument detection accuracy, improved product quality, and enhanced product market competitiveness.

[0010] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a simplified structural diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the movable bracket structure.

[0013] Figure 3 This is a simplified diagram of the fixed bracket structure. DETAILED DESCRIPTION

[0014] See also Figure 1 -3. The names of the parts are as follows: side nozzle curved section 1, side nozzle straight section 2, hose 3, pipe joint 4, screw plug 5, movable bracket 6, fixed bracket 7, hot-rolled plate 8, laminar roller 9, roller guard plate 10, nozzle 11.

[0015] See also Figure 1 A laminar flow side spraying device with a switchable position includes a side spraying pipe, a roller guard plate 10 is provided on the outside of the laminar flow roller, the side spraying pipe is installed above the outside of the roller guard plate 10, and the side spraying pipe is placed on a movable bracket 6 and a fixed bracket 7. Another fixed bracket 7 is welded on the outside of the roller guard plate 10 opposite to the movable bracket 6 for the use of the lateral reverse spraying overlapping side spraying pipe. Figure 1 The middle dotted line indicates that the side nozzle is in the lateral reverse spray position.

[0016] The side nozzle is made of DN50 stainless steel pipe. After the front of the side nozzle is heated, the end of the pipe is bent into a 15-degree angle in the opposite direction of the nozzle 11 to form a side nozzle curved section 1 and a side nozzle straight section 2. The front end of the side nozzle curved section 1 is sealed, and the side nozzle curved section 1 is connected to a hose 3, and the other end of the hose 3 is connected to a pipe joint 4; the side nozzle straight section 2 is provided with five nozzles 11 at intervals and in a straight line, and the rear end of the side nozzle straight section 2 is provided with a screw plug 5 for sewage discharge. The side nozzle is supported and connected by a movable bracket 6 and a fixed bracket 7. The side nozzle is rotatably connected to the movable bracket 6 for convenient operation of position conversion and connection of a high-pressure hose 3, so that the nozzle 11 can be used for both side spraying and lateral reverse spraying, and the ability to purge plate surface water is stronger and the purge area is wide.

[0017] See also Figure 2 The movable bracket 6 is made of round steel with high sides and wide inside. A bolt with a rotatable outer sleeve is welded at the center of the bottom outer side, and a nut is screwed on with a threaded nut facing downward.

[0018] Production of movable bracket 6: Use gas welding to heat φ24mm round steel and make it into a U-shaped piece with a height of 10mm on both sides and an inner width of 60mm. Weld a φ24 bolt with a rotatable outer sleeve with a length of 600mm at the center position of the bottom outer side. Screw on the nut with thread facing downward at one end. Adjust the nut to ensure that the screw can rotate smoothly in the outer sleeve. Tighten the spare cap nut. The production of movable bracket 6 is completed and ready for use.

[0019] See also Figure 3 , Production of fixed bracket: Use 40 angle steel to cut and weld to make concave parts with a height of 100mm on both sides and an inner width of 60mm. The flat surface of the angle steel faces inward. Draw a point and drill a φ12mm hole at the center of the side of the angle steel 36mm below the upper part of both sides of the concave part. Connect it with a 100mm long M12 screw and screw on the nut. Weld a 600mm long 40 angle steel at the center of the bottom outside of the concave part to use as a fixed bracket support. Make two fixed brackets for backup.

[0020] Instructions for use: On the roller motor side at the exit of the sixth stage of laminar cooling, weld a movable bracket 6 and a fixed bracket 7 on the roller guard plate 10, with the spacing being the same width as that of the laminar roller 9. Weld another fixed bracket 7 on the outer side of the roller guard plate 10 opposite to the movable bracket 6. The three brackets have the same height. Install the side spray pipe with five nozzles 11 on the movable bracket 6 and the fixed bracket 7 on the same side, connect the high-pressure hose 3, adjust the angle of the nozzle 11, and open the water supply pneumatic valve when passing steel. The high-pressure water is fan-shaped, spraying and sweeping the cooling water on the upper surface of the hot-rolled plate 8 on the laminar roller 9 from near to far, thereby realizing the side spray sweeping function. When the number of laminar flow headers opened increases according to the requirements of the rolled steel type and production process, in order to ensure that there is no residual water on the upper surface of the plate and strip before entering the instrument detection, the locking bolts on the fixed bracket 7 can be removed during the steel passing gap or the time of changing the rollers, and the side nozzle end of the high-pressure hose 3 at one end of the pressure belt can be lifted from the fixed bracket 7 with the movable bracket 6 as the fulcrum and axis, and the other end can be lifted from the fixed bracket 7, and the side nozzle can be rotated to another fixed bracket 7 on the outside of the roller guard plate 10 opposite the movable bracket 6 and fall into the fixed bracket 7, and the locking bolts can be put on to tighten it. When passing steel again, the water supply pneumatic valve is opened to realize the conversion of longitudinal side spraying to horizontal reverse spraying. At this time, the reverse spraying has a better effect of sweeping a large amount of water on the plate surface. When steel piles and steel jams occur, and the plates in the laminar roller 9 need to be hoisted and processed, the reverse nozzle can be quickly retracted to the side spray position, which is convenient for hoisting the plates in the laminar roller 9 without obstruction, so as to buy more time for resuming production. When inspecting the roller table, the side nozzle can be removed by removing the nut at the bottom of the movable bracket 6 and the locking bolt on the fixed bracket 7. It is convenient and quick, and the installation and conversion position are flexible, saving time and effort.

[0021] This device can be used for side spraying or horizontal reverse spraying. It has a stronger ability to purge water from the plate surface and a wide purge area. When used for longitudinal side spraying, the roller guard plate opposite is in the shape of a grater, with good water-repellent effect and less water mist. It is suitable for daily rolling of ordinary carbon plates and for use when the laminar manifold is opened less. It can also be quickly operated according to the requirements of rolling special steel and production process, and can be converted from the longitudinal side spraying position to the horizontal reverse spraying position for use. It can efficiently purge, block, and prevent a large amount of water from accumulating on the plate surface. Manual operation is flexible, convenient and fast, and the horizontal reverse spraying is firm, safe and reliable. When the roller is piled with steel, it can be retracted to the side spraying position in time, and the hoisting of the piled steel plates is unobstructed, and can be quickly handled and converted freely. When repairing the roller, it is easy to disassemble and install, saving time and effort, with a simple structure and low production cost, which improves the accuracy of instrument detection, improves product quality, and enhances the market competitiveness of products.

[0022] The above description is only a specific implementation of the present utility model, and various examples do not constitute a limitation on the essential content of the present utility model.

Claims

1. A laminar side spray device with a switchable position, comprising a side spray pipe, to which a nozzle (11) is connected, characterized in that The front part of the side nozzle is bent into an angle to form a side nozzle bent section (1) and a side nozzle straight section (2); the front end of the side nozzle bent section (1) is sealed, a rubber hose (3) is connected to the side nozzle bent section (1), and the other end of the rubber hose (3) is connected to a pipe joint (4); a plurality of nozzles (11) are arranged at intervals on the side nozzle straight section (2), and a thread plug (5) is provided at the rear end of the side nozzle straight section (2); the side nozzle is supported and connected by a movable bracket (6) and a fixed bracket (7), and the side nozzle is connected to the movable bracket (6) in a rotatable manner.

2. A laminar flow side spray device with switchable position according to claim 1, characterized in that Another fixed bracket (7) is welded to the outer side of the roller guard plate (10) opposite to the movable bracket (6).

3. A laminar flow side spray device with switchable position according to claim 1 or 2, characterized in that The movable bracket (6) is made of round steel and is a U-shaped piece with high sides and wide inside. A bolt with a rotatable outer sleeve is welded at the center of the bottom outer side. One end of the bolt has a thread facing downward and is screwed with a nut.

4. A laminar flow side spray device with switchable position according to claim 3, characterized in that The bending angle is 15 degrees.

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