CN208662156U - A kind of descaling header device - Google Patents

Abstract

The utility model discloses a kind of descaling header devices, including upper header mechanism (10) and lower collector pipe mechanism (20) setting up and down；Upper header mechanism (10) contains upper header main body (101), the top of upper header main body (101) is externally provided with stiffener plate (109), the lower part of upper header main body (101) is equipped with water fender (106), at least one Crashworthy plate (105) and multiple nozzle assemblies (107), water fender (106), which is equipped with, is lower than the lower end of nozzle assembly (107) with nozzle assembly (107) one-to-one through-hole, the lower end of Crashworthy plate (105)；Lower collector pipe mechanism (20) and upper header mechanism (10) mirror image each other.The descaling header device is designed with multiple protective, can either be guaranteed strip surface quality, and can eliminate the catastrophic failure of high pressure water collector, be reduced the consumption of spare part, improve service life.

Description

A kind of descaling header device

Technical field

The utility model relates to smelt and rolling mill auxiliary equipment field, particularly a kind of descaling header device.

Background technique

Steel billet is oxidized at high operating temperatures, will form one layer of fine and close iron scale (firecoat) on its surface.It is rolling If preceding cannot remove this layer of iron scale, they will affect the surface quality of finished product during the rolling process.Remaining oxidation Iron sheet can also accelerate the abrasion of roll, reduce the service life of roll.When needing pickling such as steel billet, remaining iron scale can increase The difficulty that acid adding is washed increases acid consumption.Therefore, before billet rolling, it is necessary to remove the iron scale on surface.Utilize the machine of high pressure water Tool impact force is the current most current effective practice come the method for removing removing iron scale (high-pressure water descaling).

With the increase of wide and heavy plate mill width, the width of corresponding De-scaling box is also increase accordingly, currently, domestic Wide and Thick Slab Milling train reaches 5000mm wide, and descaling header developed width reaches 4400mm, and the high-pressure water pressure in descaling header reaches 30MPa, Partial high pressure water pressure reaches 50MPa.During descaling of steel stock, Scale removing valve is frequently opened and closed, hydraulic pressure in descaling header Frequently change；During high pressure water sprays impact steel billet by nozzle, reaction of the nozzle by high pressure water causes de-scaling collection Pipe occurs to the curved deformation of injection stream opposite direction, and after Scale removing valve is closed, the bending deformation that descaling header occurs restores；? In one de-scaling period, collector bends-restores-and curved period effects remove with the extension of descaling header working time Phenomena such as Duct fixing clamp position generating period of squama collector is tired, and collector deformation, cracking, nozzle is be easy to cause to be broken off, together The high-pressure water jet that Shi Zaocheng nozzle sprays deflects, and reduces descaling of steel stock effect.

The injection of high pressure water for iron scale (de-scaling) is collection pipe inspection, and is with steel billet maximum width design arrangement 's.However, on the other hand, often a large amount of billet rolling and its de-scaling produce the width that all do not reach capacity, cause as a result, In descaling of steel stock process, fail effectively to use by the width that the high-pressure water descaling of steel billet maximum width design arrangement sprays, thus, The case where being used in vain there are the high pressure nozzle that liquidates above and below high pressure water.For example, under the action of high-frequency and high-voltage momentum water, high pressure water Injection hit to high pressure nozzle pedestal weld seam, keep its thinning, and often result in high pressure nozzle weld seam and burst apart, lance life drop It is low.It falls off because of impact high pressure nozzle pedestal in addition, being liquidated by (sky) up and down of high-pressure water jet and may cause high pressure nozzle, institute Safety accident or unnecessary damage may also be caused to human body or steel part by stating the nozzle to fall off.Currently, domestic and international iron and steel enterprise Hot rolling line will use high pressure water descaling device, the use arrangement of the equipment is that two groups of collectors have been evenly distributed with accordingly up and down Nozzle carries out injection de-scaling to steel billet upper and lower surface by certain angle, to guarantee surface quality of billet.

Two side nozzle of collector spray root is washed away often in high pressure water, and spraying root weld is that metallographic structure combines unevenly Position, therefore it is thinning easily to cause spray root weld constantly to wear and tear, and has not only shortened the service life of collector, but also bring equipment safety is hidden Suffer from, and there is also the generation of burst water leakage situation.At this point, to that can not solve the problems, such as this by repair welding mode.In addition, right The welding deformation for spraying root is inconsiderate, makes the spray angle of nozzle that can not accomplish high-precision, cannot also guarantee best de-scaling effect Fruit.

In order to guarantee that de-scaling quality, height of the descaling header apart from steel billet upper surface cannot be too big.Some in actual production Steel billet has discount phenomenon after having gone out heating furnace, and this steel billet has a degree of bounce in roller-way transmission process, when Descaling jet will be hit when takeofing excessively high.After using some cycles, a certain amount of impurity can be stored in descaling header, is influenced Scale removal effect needs to clean water main.Therefore, the upper descaling header needs of De-scaling box are designed to have descaling jet Enough protections, and convenient for being cleaned to water main.

Utility model content

In order to solve the problems, such as that existing descaling device service life is short.The utility model provides a kind of descaling header dress It sets, which designs with multiple protective, can either guarantee strip surface quality, and can eliminate high pressure water collector Catastrophic failure, reduce the consumption of spare part, improve service life.

The utility model solves that technical application used by its technical problem is novel to be: a kind of descaling header device, including Upper header mechanism and lower collector pipe mechanism setting up and down；Upper header mechanism contains upper header main body, and the top of upper header main body is set There is upper stiffener plate, the lower part of upper header main body is equipped with water fender, at least one Crashworthy plate and multiple nozzle assemblies, multiple nozzles Component is arranged successively along the centerline direction of upper header main body, and water fender is set to outside upper header main body, water fender be equipped with The one-to-one through-hole of nozzle assembly, each nozzle assembly are connect with upper header main body, the upper end of Crashworthy plate and water fender Lower surface is connected and fixed, and Crashworthy plate is between two adjacent nozzle assemblies, and the lower end of Crashworthy plate is lower than under nozzle assembly End；Lower collector pipe mechanism and upper header mechanism mirror image each other.

The section of upper stiffener plate in angular, the angular opening towards upper header main body, the angular tip upward, on Two side seal boards are arranged with outside header body, all nozzle assemblies are respectively positioned between two side seal boards, and upper stiffener plate passes through Two side seal boards.

Along the diametrical direction of upper header main body, each nozzle assembly contains sequentially connected nozzle bottom base, on nozzle Pedestal, nozzle nut and nozzle head, one end of nozzle bottom base are plugged in upper header main body, nozzle top base, nozzle nut It is respectively positioned on outside upper header main body with nozzle head.

It is arranged with water stopping cap outside nozzle top base, nozzle top base is externally provided with annular convex platform, and water stopping cap is cylindrical in shape structure, gear Water cap contains sequentially connected ring plate section and conical cylinder section, and the top of conical cylinder section is connect with ring plate section, and the bottom end of conical cylinder section is towards upper Header body, towards nozzle head, ring plate section is located at the annular convex platform and nozzle nut of nozzle top base on the top of conical cylinder section Between.

Conical cylinder section is located at the lower section of water fender, and distance is less than or equal to 2mm, cone cylinder between the bottom end and water fender of conical cylinder section The outer diameter of the bottom end of section is greater than the internal diameter of the through-hole of water fender, containing successively between the ring plate section and nozzle nut of water stopping cap The gasket and fastening nut of connection, fastening nut and nozzle nut are threadedly coupled with nozzle top base.

The water outlet of nozzle head is narrow slit structure, and the water outlet of nozzle head can spray sheet of water, the sheet water Stream is inclined relative to horizontal setting, the inclined direction for the sheet of water that nozzle assembly on the left of upper header main body sprays with The inclined direction for the sheet of water that nozzle assembly on the right side of upper header main body sprays is opposite.

The section of water fender is arc, and central angle corresponding to the arc is 180 °, the center line and upper header of water fender The center line of main body is overlapped, and there are spacing between water fender and upper header main body, Crashworthy plate is in crescent, the upper end of Crashworthy plate with It welds the lower surface of water fender.

One end outside weld of upper header main body is connected to intake end cover, and at least two inlet openings are provided in intake end cover, water inlet Sequentially connected horizontal segment and tilting section are contained in hole, and the tilting section of inlet opening is set to the inside of intake end cover, the water of inlet opening Flat section is set to the outside of intake end cover, and intake end cover is externally provided with multiple fastening bolt holes.

The other end outside weld of upper header main body is connected to collector end cap, collects in pipe end-cap and is provided with mudhole, mudhole contains Sequentially connected horizontal segment and lower tilting section, the lower inclination section of mudhole are located at the inside of collection pipe end-cap, the horizontal segment of mudhole Positioned at the outside of collection pipe end-cap, mudhole is externally connected with valve, and valve export side is equipped with sealing bolt, and collection pipe end-cap is externally provided with Fastening bolt holes.

Upper header mechanism and lower collector pipe mechanism are in a horizontal state, and upper header mechanism is parallel with lower collector pipe mechanism, the de-scaling Header device further includes elevating mechanism, which can make upper header mechanism and lower collector pipe mechanism only along the vertical direction respectively Vertical movement.

The beneficial effects of the utility model are:

1, by the way of the utility model installs water fender and Crashworthy plate additional using collector outside, collector two sides is solved and are often located It is easy to wash away the problem of wearing and tearing in up and down stitching the spray root bead at spray, while reserves biggish through-hole on water fender, convenient for spray The maintenance of mouth is replaced.

2, the utility model protects nozzle in such a way that nozzle configures variable diameter stamping sleeve.Both watcher is safeguarded Just, and replacement is easy, extends the service life of collector, while high pressure descaling water can effectively be avoided to wash away spray root.

3, the utility model is completely hidden in arc Crashworthy plate by installing Crashworthy plate, nozzle on water fender, can It effectively prevent steel billet to avoid the damage and deformation of nozzle to the impact and collision of nozzle, guarantees the accuracy of spray and distance of nozzle.

4, the utility model installs stiffener plate on collector, can be effectively reduced collector collector in pressure oscillation variation Deformation, hence it is evident that reduce collector deformation stress and fatigue, reduce collection pipe end-cap weld stress, avoid weld cracking, prolong Long service life of equipment.

It 5, can be by dismantling nozzle nut, Quick overhaul, replacement by the combination protection method of water stopping cap and water fender Nozzle；The fastening bolt of disassembly water stopping cap, maintenance, replacement water stopping cap, without dismantling water fender and Crashworthy plate can also be passed through；Pass through Biggish hole on water fender can detecte the situation of nozzlend welding position, without dismantling water fender and Crashworthy plate.Gear Water cap and water fender mutual security high pressure descaling water wash away nozzlend, nozzle top base and nozzle bottom base；Anticollision gear Plate effectively prevents shock of the steel billet to nozzle.

6, mudhole is opened up in advance in the collection pipe end-cap of collector one end design, valve is installed in mudhole, is pacified on valve Sealing bolt is filled, cleaning and blowdown easily can either be carried out to collector, can also ensure the high pressure sealing of collector, avoid pipeline Leakage.

In conclusion the utility model has many advantages, such as that structural strength is high, safe and reliable, repair and maintenance is convenient, it is applied to It, can effective protection nozzle safety on hot rolled strip or Heavy Plate Production line device for descaling by high-pressure.

Detailed description of the invention

The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.

Fig. 1 is the general illustration of descaling header device described in the utility model.

Fig. 2 is the schematic diagram of upper header mechanism.

Fig. 3 is the schematic diagram in the direction A in Fig. 2.

Fig. 4 is in Fig. 2 along the cross-sectional view in the direction B-B.

Fig. 5 is the structural schematic diagram of side seal board.

Fig. 6 is the connection schematic diagram of water fender.

Fig. 7 is the connection schematic diagram of Crashworthy plate.

Fig. 8 is the structure of nozzle assembly.

Fig. 9 is the enlarged diagram at the position C in Fig. 8.

Figure 10 is the cross-sectional view for collecting pipe end-cap.

Figure 11 is the left view for collecting pipe end-cap.

Figure 12 is the cross-sectional view of intake end cover.

Figure 13 is the right view of intake end cover.

Figure 14 is the schematic diagram of the water outlet of the water outlet of left side nozzles head and right side nozzles head in Fig. 3.

Figure 15 is the main view of collector pedestal.

10, upper header mechanism；20, lower collector pipe mechanism；30, steel billet；

101, upper header main body；102, side seal board；103, intake end cover；104, fastening bolt；105, Crashworthy plate；106, it keeps off Water plate；107, nozzle assembly；108, collect pipe end-cap；109, upper stiffener plate；110, nozzle bottom base；111, nozzle top base； 112, nozzle nut；113, nozzle head；114, water stopping cap；115, gasket；116, fastening nut；117, valve；118, sheet water Stream；119, gasket seal；120, fastening bolt holes；121, collector pedestal；

201, lower collector pipe main body；

1031, inlet opening；

1081, mudhole；

1141, ring plate section；1142, conical cylinder section.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

A kind of descaling header device, including upper header mechanism 10 and lower collector pipe mechanism 20 setting up and down；Upper header mechanism 10 contain upper header main body 101, and the top of upper header main body 101 is equipped with upper stiffener plate 109, the lower part of upper header main body 101 Equipped with water fender 106, at least one Crashworthy plate 105 and multiple nozzle assemblies 107, multiple nozzle assemblies 107 are along upper header main body 101 centerline direction is arranged successively, and water fender 106 is set to outside upper header main body 101, and water fender 106 is equipped with and nozzle The one-to-one through-hole of component 107, each nozzle assembly 107 both pass through the through-hole and connect with upper header main body 101, Crashworthy plate 105 upper end and the lower surface of water fender 106 are connected and fixed, Crashworthy plate 105 between two adjacent nozzle assemblies 107, The lower end of Crashworthy plate 105 is lower than the lower end of nozzle assembly 107；Lower collector pipe mechanism 20 removes the whole of mudhole with upper header mechanism 10 Body structure mirror image each other, as shown in Figures 1 to 4.

Wherein, the effect of upper stiffener plate 109 is to reduce Scale removing valve in unlatching and closing course since high pressure water enters The bending deformation of descaling header caused by the immense pressure fluctuation that upper header main body 101 generates, reduces deflection.Lower collector pipe machine Structure 20 and upper header mechanism 10 are horizontally disposed, the center line and lower collector pipe mechanism of the upper header main body 101 of upper header mechanism 10 The centerline parallel of 20 lower collector pipe main body 201, the lower part of upper header main body 101 and the top of lower collector pipe main body 201 are respectively provided with There is a nozzle assembly 107, the nozzle assembly 107 is simultaneously to the steel billet 30 between upper header mechanism 10 and lower collector pipe mechanism 20 Water jet descaling.Water fender 106 in upper header mechanism 10 covers the lower half for being located at the upper header main body 101 in water spray area, under Water fender 106 in collector mechanism 20 covers the upper half for being located at the lower collector pipe main body 201 in water spray area, and water fender 106 uses The section of high temperature resistance and high strength steel plate or the material of other impact resistances and high temperature, water fender 106 is and the matched circle of header outside diameter Arc section, on water fender 106 and the corresponding position of nozzle assembly 107 processes through-hole.The two of the length direction of water fender 106 A end face processing bolt hole, water fender 106 are connected and fixed using bolt hole and fastening bolt 104 with side seal board 102.Crashworthy plate 105 use crescent section shape, Crashworthy plate 105 and water fender 106 to be connected and fixed by the way of welding；Side seal board 102 with Upper header main body 101 and lower collector pipe main body 201 are welded, and the minimum point of Crashworthy plate 105 is lower than the lower end of nozzle assembly 107, steel billet 30 will hit Crashworthy plate 105 when hitting, and nozzle assembly 107 is avoided to be hit by steel billet 30.

In upper header mechanism 10, the section of upper stiffener plate 109 is in angular (such as square), and the angular opening is towards upper Header body 101, the angular tip upward, are arranged with two side seal boards 102, two side seal boards 102 outside upper header main body 101 Between region be above-mentioned water spray area, all nozzle assemblies 107 are respectively positioned between two side seal boards 102, upper stiffener plate 109 Across two side seal boards 102, as shown in Figures 4 to 7.

In upper header mechanism 10, along the diametrical direction of upper header main body 101, each nozzle assembly 107 is along containing successively Nozzle bottom base 110, nozzle top base 111, nozzle nut 112 and the nozzle head 113 of connection, one end of nozzle bottom base 110 It is plugged in upper header main body 101, nozzle top base 111, nozzle nut 112 and nozzle head 113 are respectively positioned on upper header main body 101 Outside.

In upper header mechanism 10, it is arranged with water stopping cap 114 outside nozzle top base 111, nozzle top base 111 is externally provided with annular Boss, water stopping cap 114 are cylindrical in shape structure, and water stopping cap 114 contains sequentially connected ring plate section 1141 and conical cylinder section 1142, conical cylinder section 1142 top is connect with ring plate section 1141, and the bottom end of conical cylinder section 1142 is towards upper header main body 101, the top of conical cylinder section 1142 Towards nozzle head 113, ring plate section 1141 is located between the annular convex platform and nozzle nut 112 of nozzle top base 111, such as schemes Shown in 8 and Fig. 9.

In upper header mechanism 10, conical cylinder section 1142 is located at the lower section of water fender 106, the bottom end of conical cylinder section 1142 and water fender Distance is less than or equal to 2mm between 106, and the outer diameter of the bottom end of conical cylinder section 1142 is greater than the internal diameter of the through-hole of water fender 106, Contain sequentially connected gasket 115 and fastening nut 116, fastening between the ring plate section 1141 and nozzle nut 112 of water stopping cap 114 Nut 116 and nozzle nut 112 are threadedly coupled with nozzle top base 111, as shown in Figure 9.

In upper header mechanism 10, upper header main body 101 is equipped with nozzle bottom base hole, and nozzle head 113 passes through base on nozzle Seat 111 and nozzle bottom base 110 are vertically mounted on nozzle bottom base hole, the phase of nozzle bottom base 110 and nozzle bottom base hole Place connect into a ladder.Nozzle bottom base 110 and nozzle bottom base hole are in rank at the two docking by the way of being welded to connect Scalariform avoids in welding process operator from causing descaling jet angle to generate deviation due to the shake of hand, it is ensured that high pressure water jets Penetrating has suitable overlay region in surface of steel plate, ensure that scale removal effect, improves plate surface quality.110 He of nozzle bottom base The form of threaded connection can also be used in nozzle bottom base hole or other connection types are fixedly connected.

Water stopping cap 114 is solid using compressing between fastening nut 116, gasket 115 and the annular convex platform of nozzle top base 111 It is fixed；One end of nozzle head 113 has outer lug boss, and spray-hole (i.e. water outlet) angle of rotation spray mouth 113 reaches production technology It is required that the mode that nozzle nut 112 and nozzle top base 111 are connected through a screw thread is fixed, when nozzle nut 112 and nozzle After top base 111 is tightened, the upper surface of the outer lug boss of nozzle head 113 and the inner end face contact of nozzle nut 112, nozzle head 113 Outer lug boss lower end surface and gasket seal 119 contact, an end of the lower end surface of gasket seal 119 and nozzle top base 111 Face contact.

In the present embodiment, the water outlet of nozzle head 113 is narrow slit structure, and the water outlet of nozzle head 113 can spray Sheet of water 118 out, the sheet of water 118 are inclined relative to horizontal setting, which inclines relative to perpendicular Tiltedly setting.Nozzle head 113 spray sheet of water 118 and horizontal plane angle (α or β) can be 22 °, 26 °, 30 °, 40 °, or Person selects different angles according to actual effect.Preferably 15 ° of the deflection angle of nozzle, can also according to actual needs angle at 6 ° To between 40 °.Be preferably placed at the inclined direction of the sheet of water 118 that the nozzle assembly 107 in the left side of upper header main body 101 sprays with The inclined direction for the sheet of water 118 that nozzle assembly 107 positioned at 101 right side of upper header main body sprays is on the contrary, as shown in figure 14.

In the present embodiment, the section of water fender 106 is arc, and central angle corresponding to the arc is 180 °, arc institute Corresponding central angle can within the scope of 120 ° to 270 ° unrestricted choice, in the center line of water fender 106 and upper header main body 101 Heart line is overlapped, and there are spacing between water fender 106 and upper header main body 101, Crashworthy plate 105 is in crescent, Crashworthy plate 105 it is upper End and the lower surface of water fender 106 are welded, as shown in Figures 4 to 7.

The high pressure water that the high pressure water that water fender 106 can stop nozzle to be blown is sprayed due to the descaling jet of reflection or opposite side Impact to nozzle top base 111, nozzle bottom base 110 and header body has good protective effect to nozzlend.Gear The diameter of water plate through-hole is slightly larger than the diameter of nozzle bottom base 110, can be easily installed water fender 106, while 106 He of water fender Crashworthy plate 105 will not generate interference and collision with nozzle bottom base in the case where slight deformation occurs.Water stopping cap 114 can be complete The through-hole for covering water fender, avoids high pressure descaling water slug from entering inside water fender through-hole, while being also the maintenance of descaling jet, Replacement provides working space, and after being dismantled nozzle nut 112 and fastening nut 116 with nut loosening tool, water stopping cap 114 can It directly falls off, nozzle head 113 and water stopping cap 114 can be replaced, while nozzle top base 111 can be overhauled, more It changes.

By the way of integral solder, installation, is replaced by the way of whole just maintenance for water fender 106 and Crashworthy plate 105 In Quick overhaul and replacement.Nozzle head 113 and water stopping cap 114 use independent mounting means, can be with independent operation, with water fender 106 and Crashworthy plate 105 will not generate interference.

Side seal board 102 can effectively stop high pressure descaling water, avoid high pressure water from leaking into outside De-scaling box, together When can guarantee in descaling header lifting process to high pressure water have good sealing, be always maintained at the sealing of De-scaling box.

The period of descaling header caused by descaling header (upper header main body 101 and lower collector pipe main body 201) interior pressure oscillation Bending deformation, the period bending deformation of descaling header cause descaling header sum aggregate pipe end-cap 108, intake end cover 103 junction Alternate stress be easy to cause descaling header sum aggregate pipe end-cap 108, the weldering of 103 junction of intake end cover under long-term alternate stress effect The deformation of seam and cracking.The stiffener plate 109 on descaling header top can increase the rigidity of descaling header, reduce descaling header and exist Deformation when pressure change reduces descaling header sum aggregate pipe end-cap 108, the stress of 103 junction weld seam of intake end cover and deformation Amount, increases the stability of collector, extends the service life of collector, improve the safety of collector.

The stability of collector increases, and the stability of collector descaling jet is increase accordingly, the high pressure water that descaling jet ejects It is able to maintain stable distribution, can be realized stable scale removal effect, the deformation due to nozzle is avoided to lead to the high pressure water of injection There is the phenomenon that excessive overlapping in part or partial region are without de-scaling water distribution.The water outlet of nozzle head 113 is narrow slit structure, that is, is sprayed The front end centerline of mouth 113 is machined with groove.What the groove and axially extending bore of spray head front end center line were crossed to form Section approximate ellipse hole.

The shape and structure of water stopping cap 114 can select different length according to the length that nozzle stretches out water fender 106；If spray Mouth does not simultaneously extend out water fender 106, and the water stopping cap that writing board shape can be used blocks the through-hole of water fender, prevents high pressure descaling Water enters in the gap among collector and water fender.

In the present embodiment, one end outside weld of upper header main body 101 is connected to intake end cover 103, setting in intake end cover 103 There are at least two inlet openings 1031, sequentially connected horizontal segment and tilting section, the inclination of inlet opening 1031 are contained in inlet opening 1031 Section is set to the inside of intake end cover 103, and the horizontal segment of inlet opening 1031 is set to the outside of intake end cover 103, intake end cover 103 are externally provided with multiple fastening bolt holes, as shown in Figure 12 and Figure 13.It is steadily uniform that the inlet opening 1031 can be realized high pressure water Into inside collector.Multiple fastening bolt holes are processed on intake end cover 103, are connected using bolt hole with inlet pipeline.

In the present embodiment, the other end outside weld of upper header main body 101 is connected to collector end cap 108, collects and sets in pipe end-cap 108 It is equipped with mudhole 1081, mudhole 1081 contains sequentially connected horizontal segment and lower tilting section, the lower tilting section of mudhole 1081 Positioned at the inside of collection pipe end-cap 108, the horizontal segment of mudhole 1081 is located at the outside of collection pipe end-cap 108, connects outside mudhole 1081 It is connected to valve 117, collection pipe end-cap 108 is externally provided with fastening bolt holes 120, as shown in Figure 10 and Figure 11.The descaling header device is also Including elevating mechanism, which can be such that upper header mechanism 10 and lower collector pipe mechanism 20 moves along the vertical direction, so as to To adjust the distance between upper header mechanism 10 and lower collector pipe mechanism 20.

In the center line of the upper header main body 101 of upper header mechanism 10 and the lower collector pipe main body 201 of lower collector pipe mechanism 20 Heart line is respectively positioned in same perpendicular；Or the center line of the upper header main body 101 of upper header mechanism 10 and lower collector pipe mechanism The center line of 20 lower collector pipe main body 201 is located in different perpendiculars, i.e., upper and lower header axis perpendicular is in the horizontal direction Allow that there are a fixed spacings.Due to upper header mechanism 10 and lower collector pipe mechanism 20 mirror image each other, in order to save length, this is practical new Type does not just describe again to lower collector pipe mechanism 20 in detail, and specific structure may refer to upper header mechanism 10.

Descaling header, mudhole outlet port connection one is discharged in the sediment etc. in descaling header using mudhole 1081 The outlet end of a valve 117, valve 117 is sealed using sealing bolt, and valve 117 is in normally off.According to production maintenance Time cycle unloads sealing bolt, and Open valve is rinsed pipeline using the low pressure water in pipeline, removes in collector Sediment.The direct welding manner of original collection tube end blind plate is changed, takes solid forging pipe cap to weld, makes collector end weld It is mobile to collector central cross, it avoids end weld and generates cracking feelings under loine pressure and pipeline high pressure water souring Condition.

The top of collection pipe end-cap 108 is machined with fastening bolt holes 120, and collection 108 sum aggregate tube bottom seat 121 of pipe end-cap cooperation is solid It is fixed, as shown in Fig. 1 and Figure 15, compressed using the fastening bolt holes at the top of collection pipe end-cap by gland sum aggregate tube bottom seat 121 It is fixedly connected.Fastening bolt holes are machined at the top of collector intake end cover, the cooperation of collector intake end cover sum aggregate tube bottom seat 121 is fixed, It carries out being fixed connection by gland sum aggregate tube bottom seat using the fastening bolt holes at the top of collector intake end cover.Collector pedestal 121 are mounted on elevating mechanism, carry out lifting action to upper header and lower collector pipe using Sheng Jia mechanism, realize and be directed to different-thickness Blank meet the corresponding de-scaling region of jet expansion positional distance blank surface constant distance requirement, meet high pressure descaling The constant hitting power of the high pressure water of nozzle, meets de-scaling requirement.

The mode that the utility model is put forward for the first time the installation reinforcing rib on collector reduces collector as caused by variation in water pressure Collector deformation reduces the stress of the fixed device in collector both ends, avoids causing collector to snap, be broken due to period alternate stress Risk.Using water fender and water stopping cap combination by the way of high-pressure water descaling collector is protected, be both able to satisfy overhaul of the equipments, The demand of replacement, and it is able to achieve the effective protection of collector and nozzle, avoid high pressure water from damaging the bath of collector and nozzle.

Using the scheme for installing Crashworthy plate outside water fender additional, the shock due to steel billet to descaling jet, effective protection are avoided Spray nozzle device.Using the scheme of collection pipe end-cap setting mudhole, valve and sealing device, it was both able to achieve the effective close of header device Envelope, and it is able to achieve the impurity such as sediment, the iron rust removed in collector in collector cleaning process.

The above, only specific embodiment of the utility model cannot limit the range that utility model is implemented, institute with it With the displacement of its equivalent assemblies, or according to equivalent variations made by the utility model patent protection scope and modification, should all still fall within The scope that this patent is covered.In addition, between technical characteristic and technical characteristic in the utility model, technical characteristic and technical application Between novel, technical application it is novel it is novel with technical application between use can be freely combined.

Claims (10)

1. a kind of descaling header device, which is characterized in that the descaling header device includes upper header mechanism (10) setting up and down With lower collector pipe mechanism (20)；Upper header mechanism (10) contains upper header main body (101), the top peripheral hardware of upper header main body (101) Have upper stiffener plate (109), the lower part of upper header main body (101) be equipped with water fender (106), at least one Crashworthy plate (105) and Multiple nozzle assemblies (107), multiple nozzle assemblies (107) are arranged successively along the centerline direction of upper header main body (101), water blocking Plate (106) is set to upper header main body (101) outside, and water fender (106) is equipped with logical correspondingly with nozzle assembly (107) Hole, each nozzle assembly (107) connect with upper header main body (101), upper end and water fender (106) of Crashworthy plate (105) Lower surface is connected and fixed, and for Crashworthy plate (105) between two adjacent nozzle assemblies (107), the lower end of Crashworthy plate (105) is low In the lower end of nozzle assembly (107)；Lower collector pipe mechanism (20) and upper header mechanism (10) mirror image each other.

2. descaling header device according to claim 1, which is characterized in that above the section of stiffener plate (109) is in angular, The angular opening upward, is arranged with two towards upper header main body (101), the angular tip outside upper header main body (101) Side seal board (102), all nozzle assemblies (107) are respectively positioned between two side seal boards (102), and upper stiffener plate (109) passes through Two side seal boards (102).

3. descaling header device according to claim 1, which is characterized in that the diametrical direction along upper header main body (101), Each nozzle assembly (107) contains sequentially connected nozzle bottom base (110), nozzle top base (111), nozzle nut (112) it is plugged in upper header main body (101) with nozzle head (113), one end of nozzle bottom base (110), nozzle top base (111), nozzle nut (112) and nozzle head (113) are respectively positioned on upper header main body (101) outside.

4. descaling header device according to claim 3, which is characterized in that be arranged with water blocking outside nozzle top base (111) Cap (114), nozzle top base (111) are externally provided with annular convex platform, and water stopping cap (114) is cylindrical in shape structure, water stopping cap (114) contain according to The ring plate section (1141) and conical cylinder section (1142) of secondary connection, the top of conical cylinder section (1142) are connect with ring plate section (1141), cone cylinder The bottom end of section (1142) is towards upper header main body (101), and the top of conical cylinder section (1142) is towards nozzle head (113), ring plate section (1141) between the annular convex platform and nozzle nut (112) of nozzle top base (111).

5. descaling header device according to claim 4, which is characterized in that conical cylinder section (1142) is located at water fender (106) Lower section, between the bottom end and water fender (106) of conical cylinder section (1142) distance be less than or equal to 2mm, the bottom of conical cylinder section (1142) The outer diameter at end is greater than the internal diameter of the through-hole of water fender (106), the ring plate section (1141) and nozzle nut of water stopping cap (114) (112) contain sequentially connected gasket (115) and fastening nut (116), fastening nut (116) and nozzle nut (112) between It is threadedly coupled with nozzle top base (111).

6. descaling header device according to claim 3, which is characterized in that the water outlet of nozzle head (113) is slit knot Structure, the water outlet of nozzle head (113) can spray sheet of water (118), which with respect to the horizontal plane inclines Tiltedly setting, be located at upper header main body (101) on the left of nozzle assembly (107) spray sheet of water (118) inclined direction with The inclined direction for the sheet of water (118) that nozzle assembly (107) on the right side of upper header main body (101) sprays is opposite.

7. descaling header device according to claim 1, which is characterized in that the section of water fender (106) is arc, the arc Central angle corresponding to shape is 180 °, and the center line of water fender (106) is overlapped with the center line of upper header main body (101), water blocking There are spacing between plate (106) and upper header main body (101), Crashworthy plate (105) is in crescent, the upper end of Crashworthy plate (105) with It welds the lower surface of water fender (106).

8. descaling header device according to claim 1, which is characterized in that one end external welding of upper header main body (101) Have intake end cover (103), be provided at least two inlet openings (1031) in intake end cover (103), inlet opening (1031) contain according to The tilting section of the horizontal segment and tilting section of secondary connection, inlet opening (1031) is set to the inside of intake end cover (103), inlet opening (1031) horizontal segment is set to the outside of intake end cover (103), and intake end cover (103) is externally provided with multiple fastening bolt holes.

9. descaling header device according to claim 8, which is characterized in that the other end outside weld of upper header main body (101) It is connected to collection pipe end-cap (108), is provided with mudhole (1081) in collection pipe end-cap (108), mudhole (1081), which contains, to be sequentially connected Horizontal segment and lower tilting section, the lower inclination section of mudhole (1081) is located at the inside of collection pipe end-cap (108), mudhole (1081) Horizontal segment be located at the outside of collection pipe end-cap (108), mudhole (1081) is externally connected with valve (117), the installation of valve export side There is sealing bolt, collection pipe end-cap (108) is externally provided with fastening bolt holes.

10. descaling header device according to claim 1, which is characterized in that upper header mechanism (10) and lower collector pipe mechanism (20) it is in a horizontal state, upper header mechanism (10) is parallel with lower collector pipe mechanism (20), which further includes lifting Mechanism, the elevating mechanism can make upper header mechanism (10) and lower collector pipe mechanism (20) independent mobile along the vertical direction respectively.