Strip steel purging device capable of quickly disassembling and assembling spray pipe

Abstract

The utility model relates to a strip steel purging device with spray pipes capable of being quickly assembled and disassembled, which comprises a rack, a plurality of upper purging units and a plurality of lower purging units, each upper purging unit comprises an upper spray pipe and an upper quick-change guide structure, the upper spray pipes are detachably and fixedly connected with the rack, and the lower spray pipes are detachably and fixedly connected with the rack. The upper quick-change guide structure comprises an upper guide rail fixedly installed on the top of the rack and a plurality of sliding blocks arranged on the upper guide rail in a sliding mode, the guide direction of the upper guide rail is parallel to the axial direction of the upper spray pipes, and each sliding block is connected with the corresponding upper spray pipe through a suspension chain. According to the utility model, the upper spray pipe is provided with the upper quick-change guide structure, so that when the upper spray pipe is overhauled and maintained, the disassembly, assembly and maintenance operation of the upper spray pipe can be smoothly and reliably completed through the sliding fit of the sliding block and the upper guide rail and the suspension and traction effects of the suspension chain on the upper spray pipe, and the maintenance efficiency of the strip steel purging device is effectively improved; the equipment is free of additional electrical equipment and other energy consumption, each upper spray pipe can be independently and quickly disassembled and assembled on line, and the operation is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and in particular relates to a strip steel blowing device capable of quickly disassembling and assembling a nozzle. Background Art

[0002] Cold-rolled strip cleaning is involved in many production processes. After cleaning, the surface of the strip is free of protective layers such as grease and iron oxide, so it cannot be exposed to the ambient air for a long time in a wet state. Therefore, the strip must be dried as soon as possible at the outlet of the cleaning section to prevent it from oxidation and rusting. Common drying methods include hot air drying, compressed air blowing, vacuum squeezing, or a combination of the above methods. In some occasions where the installation space is limited, the unit speed is very high, and the allowable temperature of the strip surface cannot be too high, compressed air blowing becomes the preferred mode for strip drying due to its small size, high drying efficiency, and low temperature. This mode requires a whole row of compressed air nozzles to be set on the spray beam. A large number of compressed air nozzles continue to work under high pressure. In the case of poor compressed air quality, the probability of nozzle failure is relatively high. The damaged nozzle makes sharp noise and strong penetration when the high-pressure air passes through, which damages the health of the operator and must be replaced or repaired in time. The replacement of traditional strip blowing devices is cumbersome, and each replacement is time-consuming and labor-intensive. Frequent replacement of nozzles affects the production capacity of the unit. Utility Model Content

[0003] The utility model relates to a strip steel blowing device with a spray pipe capable of being quickly disassembled and assembled, which can at least solve some defects of the prior art.

[0004] The utility model relates to a strip steel blowing device capable of quickly disassembling and assembling a nozzle, comprising a frame, an upper blowing mechanism and a lower blowing mechanism, the upper blowing mechanism comprising a plurality of upper blowing units sequentially arranged along a running direction of the strip steel, the lower blowing mechanism comprising a plurality of lower blowing units sequentially arranged along a running direction of the strip steel, the upper blowing unit comprising an upper nozzle and an upper quick-change guide structure, the upper nozzle being detachably connected to the frame via a first detachable mounting structure, the upper quick-change guide structure comprising an upper guide rail fixedly mounted on the top of the frame and a plurality of sliders slidably mounted on the upper guide rail, the guiding direction of the upper guide rail being parallel to the axial direction of the upper nozzle, each of the sliders being connected to the corresponding upper nozzle via a suspension chain, and a clearance opening for the suspension chain to slide through is provided at the bottom of the upper guide rail.

[0005] As one of the implementation modes, the upper guide rail is a grooved guide rail, the slider is a spherical slider, or a cylindrical slider, and the axial direction of the cylindrical slider is perpendicular to the running direction of the strip.

[0006] As one of the implementation modes, the upper guide rail is chamfered at the clearance opening, and the roughness of the chamfer is less than Ra6.3μm.

[0007] As one of the implementation modes, the first detachable mounting structure includes two groups of upper pipe clamps respectively arranged on the operating side and the transmission side of the unit, and the upper pipe clamps are installed on the frame and clamp the upper nozzle.

[0008] As one of the implementation modes, the upper nozzle has a first removal end and a first non-removable end, and the first non-removable end is connected to the gas source side pipeline flange.

[0009] As one of the embodiments, the lower purge unit includes a lower nozzle, which is detachably fixed to the frame via a second detachable mounting structure; the lower nozzle has a second detachable end and a second non-detachable end, and the second non-detachable end is flange-connected to the gas source side pipeline.

[0010] As one of the embodiments, the lower purge unit also includes a lower quick-change guide structure, which includes a lower guide rail suitable for cooperating with the flange guide of the lower nozzle, and the lower guide rail is fixedly mounted on the frame and located directly below the corresponding lower nozzle.

[0011] As one of the implementation modes, the lower guide rail adopts a channel steel rail with the notch facing upward, the notch is chamfered and the roughness of the chamfer is less than Ra6.3μm.

[0012] As one of the implementation modes, the purge nozzle is mounted on the corresponding nozzle through a ball joint.

[0013] As one of the implementation modes, a control valve is provided at the inlet of the purge nozzle, and the control valve is installed on the corresponding nozzle.

[0014] The utility model has at least the following beneficial effects:

[0015] The strip steel blowing device provided by the utility model is equipped with an upper quick-change guide structure for the upper nozzle. When the upper nozzle is inspected and maintained, the upper nozzle can be smoothly and reliably disassembled and maintained through the sliding cooperation between the slider and the upper guide rail and the suspension and traction of the upper nozzle by the suspension chain, thereby effectively improving the maintenance efficiency of the strip steel blowing device. The equipment has no additional electrical equipment and other energy consumption, and each upper nozzle can be independently and quickly disassembled and assembled online, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 and Figure 2 A schematic structural diagram of a strip steel blowing device from two perspectives provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] like Figure 1 and Figure 2 The embodiment of the utility model provides a strip steel blowing device with a nozzle that can be quickly disassembled and assembled, comprising a frame 1, an upper blowing mechanism and a lower blowing mechanism, the upper blowing mechanism comprising a plurality of upper blowing units arranged in sequence along the running direction of the strip steel, the lower blowing mechanism comprising a plurality of lower blowing units arranged in sequence along the running direction of the strip steel, the upper blowing unit comprising an upper nozzle 21 and an upper quick-change guide structure, the upper nozzle 21 being detachably connected to the frame 1 through a first detachable mounting structure, the upper quick-change guide structure comprising an upper guide rail 23 fixedly mounted on the top of the frame 1 and a plurality of sliders 24 slidably mounted on the upper guide rail 23, the guiding direction of the upper guide rail 23 being parallel to the axial direction of the upper nozzle 21, each of the sliders 24 being connected to the corresponding upper nozzle 21 through a suspension chain 22, and a clearance opening for the suspension chain 22 to slide through is provided at the bottom of the upper guide rail 23.

[0020] A strip steel running channel is formed in the frame 1; the frame 1 includes but is not limited to a frame structure, including but not limited to being formed by welding a plurality of steel pipes.

[0021] Among them, the upper purge unit is arranged above the strip running channel, and the axis of the upper nozzle 21 is parallel to the width direction of the strip running channel; the lower purge unit is arranged below the strip running channel, and the lower purge unit includes a lower nozzle 31, and the axis of the lower nozzle 31 is parallel to the width direction of the strip running channel.

[0022] A plurality of purge nozzles are installed on the upper nozzle 21; the blowing range of each purge nozzle on each upper nozzle 21 can be designed to cover the width of the strip, for example, the purge ranges of two adjacent purge nozzles overlap; in another embodiment, the purge nozzles of two adjacent upper nozzles 21 are staggered to ensure that the airflow on the surface of the strip covers the full width.

[0023] A plurality of purge nozzles are installed on the lower nozzle pipe 31 , and the arrangement of the purge nozzles on the lower nozzle pipe 31 may refer to the arrangement of the purge nozzles on the upper nozzle pipe 21 .

[0024] The number of the upper nozzles 21 is two or more, and the operation of the unit can still be guaranteed when a single upper nozzle 21 is maintained and overhauled; the number of the lower nozzles 31 is two or more, and the operation of the unit can still be guaranteed when a single lower nozzle 31 is maintained and overhauled.

[0025] In one embodiment, the purge nozzle is mounted on the corresponding nozzle through a ball joint, so that the purge angle of the purge nozzle can be easily adjusted.

[0026] In one embodiment, a control valve is provided at the inlet of the purge nozzle, and the control valve is installed on the corresponding nozzle. When the purge nozzle is damaged and a spare nozzle cannot be replaced in time, the single purge nozzle is shut off. In the structure in which the purge nozzle is installed on the nozzle through a ball joint, the control valve can be a ball valve.

[0027] In one of the embodiments, the first detachable mounting structure includes two sets of upper pipe clamps respectively arranged on the operating side and the transmission side of the unit, and the upper pipe clamps are installed on the frame 1 and clamp the upper nozzle 21 .

[0028] Furthermore, the first detachable mounting structure is configured with a plurality of adjusting gaskets, which are used to be set at the upper pipe clamp mounting position of the frame 1 or at the nozzle mounting position of the upper pipe clamp. By increasing or decreasing the adjusting gaskets or replacing the adjusting gaskets of different thicknesses, the installation height of the upper nozzle 21 can be adjusted, thereby adjusting the distance from the purge nozzle to the surface of the strip within a small range, thereby achieving the adjustment of the purge range and / or purge intensity.

[0029] In one of the embodiments, the lower nozzle 31 is detachably fixed to the frame 1 via a second detachable mounting structure. The second detachable mounting structure may also include two sets of lower pipe clamps respectively arranged on the operating side and the transmission side of the unit. The lower pipe clamps are installed on the frame 1 and clamp the lower nozzle 31.

[0030] Furthermore, the second detachable mounting structure is configured with a plurality of adjusting gaskets, which are used to be set at the lower pipe clamp mounting position of the frame 1 or at the nozzle mounting position of the lower pipe clamp. By increasing or decreasing the adjusting gaskets or replacing the adjusting gaskets of different thicknesses, the installation height of the lower nozzle 31 can be adjusted, thereby adjusting the distance from the purge nozzle to the surface of the strip within a small range, thereby achieving the adjustment of the purge range and / or purge intensity.

[0031] In one embodiment, the upper nozzle 21 has a first removal end and a first non-removable end. The first removal end is an end for pulling the upper nozzle 21 out of the frame 1, and can be an end of the upper nozzle 21 close to the operating side of the unit. Figure 2The first non-removable end is connected to the gas source side pipeline by a flange connection structure 4. In addition to supplying gas to the upper nozzle 21, the gas source side pipeline can also play a role of fixing and restraining the upper nozzle 21, thereby improving the structural stability of the upper nozzle 21 during operation. When inspecting and maintaining the upper nozzle 21, it is only necessary to remove the bolts at the flange of the first non-removable end, then manually lift the upper nozzle 21 to the top of the upper pipe clamp, push it into the frame 1, and then manually drag the upper nozzle 21 from the first removal end.

[0032] Preferably, if Figure 1 The upper guide rail 23 is a grooved guide rail, and the slider 24 is a spherical slider 24 or a cylindrical slider 24. The axial direction of the cylindrical slider 24 is perpendicular to the running direction of the strip. This design can reduce the friction between the slider 24 and the upper guide rail 23 and improve the sliding smoothness of the slider 24 in the upper guide rail 23. When a cylindrical slider 24 is used, the two ends of the cylindrical slider 24 are preferably in clearance fit with the groove walls on both sides of the upper guide rail 23.

[0033] Furthermore, the upper guide rail 23 is chamfered at the opening, and the roughness of the chamfer is less than Ra6.3μm. This treatment can reduce the friction between the suspension chain 22 and the upper guide rail 23. When a spherical slider 24 is used, the friction between the spherical slider 24 and the upper guide rail 23 can also be reduced.

[0034] The number of sliders 24 can be set according to the length of the upper nozzle 21 / the width of the strip, etc. Too many sliders 24 may increase the resistance to the disassembly and assembly of the upper nozzle 21, while too few sliders 24 will cause each slider 24 to be subjected to a large force, affecting the reliability of the chain support. Preferably, the number of sliders 24 is in the range of 2 to 5.

[0035] In one embodiment, the lower nozzle 31 has a second removal end and a second non-removal end, and the second removal end is an end for pulling the lower nozzle 31 out of the frame 1, and can be an end of the lower nozzle 31 close to the operating side of the unit. Figure 2 The second non-removable end is connected to the gas source side pipeline by a flange connection structure 4. In addition to supplying gas to the lower nozzle 31, the gas source side pipeline can also play a role of fixing and restraining the lower nozzle 31, thereby improving the structural stability of the lower nozzle 31 during operation. When inspecting and maintaining the lower nozzle 31, it is only necessary to remove the bolts at the flange of the second non-removable end, then manually lift the lower nozzle 31 to the top of the lower pipe clamp, push it into the frame 1, and then manually drag the upper nozzle 21 from the first removal end.

[0036] More preferably, if Figure 1 and Figure 2The lower purge unit further includes a lower quick-change guide structure, which includes a lower guide rail 32 suitable for guiding with the flange of the lower nozzle 31. The lower guide rail 32 is fixedly mounted on the frame 1 and is located directly below the corresponding lower nozzle 31. When inspecting and maintaining the lower nozzle 31, the flange of the lower nozzle 31 can naturally fall into the lower guide rail 32 and slide along the lower guide rail 32, which is convenient for disassembly and maintenance of the lower nozzle 31. In one embodiment, Figure 1 The lower guide rail 32 adopts a channel steel track with the notch facing upward; further, the notch is chamfered and the roughness of the chamfer is less than Ra6.3μm. This treatment can reduce the friction between the flange of the lower nozzle 31 and the lower guide rail 32.

[0037] 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 protection scope of the present invention.

Claims

1. A strip steel purging device capable of quickly assembling and disassembling a nozzle, comprising a frame, an upper purging mechanism and a lower purging mechanism, wherein the upper purging mechanism comprises a plurality of upper purging units sequentially arranged along the running direction of the strip steel, and the lower purging mechanism comprises a plurality of lower purging units sequentially arranged along the running direction of the strip steel, characterized in that: The upper purge unit includes an upper nozzle and an upper quick-change guide structure. The upper nozzle is detachably connected to the frame via a first detachable mounting structure. The upper quick-change guide structure includes an upper guide rail fixedly mounted on the top of the frame and a plurality of sliders slidably mounted on the upper guide rail. The guiding direction of the upper guide rail is parallel to the axial direction of the upper nozzle. Each slider is connected to the corresponding upper nozzle via a suspension chain. A clearance opening is provided at the bottom of the upper guide rail for the suspension chain to slide through.

2. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1, characterized in that: The upper guide rail is a groove-type guide rail, and the slider is a spherical slider or a cylindrical slider, and the axial direction of the cylindrical slider is perpendicular to the running direction of the strip steel.

3. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1, characterized in that: The upper guide rail is chamfered at the clearance opening, and the roughness of the chamfer is less than Ra6.3μm.

4. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1, characterized in that: The first detachable mounting structure comprises two groups of upper pipe clamps respectively arranged on the operating side and the transmission side of the unit, and the upper pipe clamps are installed on the frame and clamp the upper nozzle.

5. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1 or 4, characterized in that: The upper nozzle has a first removal end and a first non-removal end, and the first non-removal end is connected to the gas source side pipeline flange.

6. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1, characterized in that: The lower purge unit includes a lower nozzle, which is detachably fixed to the frame via a second detachable mounting structure; the lower nozzle has a second detachable end and a second non-detachable end, and the second non-detachable end is connected to a gas source side pipeline flange.

7. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 6, characterized in that: The lower purge unit also includes a lower quick-change guide structure, which includes a lower guide rail suitable for matching with the flange guide of the lower nozzle, and the lower guide rail is fixedly installed on the frame and is located directly below the corresponding lower nozzle.

8. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 7, characterized in that: The lower guide rail adopts a channel steel rail with the notch facing upwards, the notch is chamfered and the roughness of the chamfer is less than Ra6.3μm.

9. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly as claimed in claim 1, characterized in that: The purge nozzle is mounted on the corresponding spray pipe via a ball joint.

10. The strip steel blowing device with a nozzle capable of rapid assembly and disassembly according to claim 1 or 9, characterized in that: A control valve is provided at the inlet of the purge nozzle, and the control valve is installed on the corresponding spray pipe.

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