CN202667576U

CN202667576U - Crystallizer with spilt type water jacket

Info

Publication number: CN202667576U
Application number: CN 201220009012
Authority: CN
Inventors: 李富帅; 陶金明
Original assignee: Zhongye Continuous Casting Technology Engineering Co Ltd
Current assignee: Zhongye Continuous Casting Technology Engineering Co Ltd; CCTec Engineering Co Ltd
Priority date: 2012-01-06
Filing date: 2012-01-06
Publication date: 2013-01-16
Anticipated expiration: 2022-01-06

Abstract

The utility model provides a crystallizer with a spilt type water jacket. A diversion water jacket of the crystallizer adopts public a split type water jacket with a diversion water channel applied by the utility model owner. A crystallizer copper tube adopts a thin wall copper tube with the wall thickness only equal to half of the wall thickness of a common crystallizer copper tube. Through a method of machining, a radian of the water jacket is guaranteed to be precise, a radian of a transmutative copper tube can be rectified through the own strength of the crystallizer, the dimensional precision of the crystallizer can be guaranteed during the manufacturing process in terms of a mechanical structure, and the influence that the instability of the crystallizer copper tube carries on a casting machine can be removed. The crystallizer with the split type water jacket is beneficial to the uniform growth of a solidified shell, the heat exchanging effect of a water joint and the operating cost reduction.

Description

A kind of crystallizer with split type water jacket

Technical field

The utility model relates to a kind of crystallizer with split type water jacket, is specially metallurgy industry and is used for High-Efficiency Billet Concast machine crystallizer, and split type water jacket with diversion flume is installed in this kind crystallization, belongs to the metallurgical continuous casting technical field.

Background technology

Crystallizer is the critical component of conticaster, by copper pipe, be coated on the parts such as the outside diversion water jacket of copper pipe and magnetic stirrer and form, the crystallizer of billet caster is under high pulling rate condition, for guaranteeing molten steel even shape shell in crystallizer copper pipe, and reach certain shell thickness in the crystallizer exit position, require to reach the bight cooling evenly around the crystallizer, and have enough cooling effectiveness.In the known crystallizer, its copper pipe is to be formed through specially designed plug and external mold extruding drawing by the heavy wall copper pipe, after the extruding drawing procedure is finished, is withdrawn from plug, the residual stress reason of crystallizer copper pipe because eliminating, cause arc radius to change, even the copper pipe that same set of mould is produced, its arc diameter changes difference even reaches more than 1 meter.

On the other hand, existing crystallizer copper pipe is directly to link to each other with the crystallizer cylindrical shell, the upper surface of junction crystallizer and draw-in groove are to locate by the profile circular arc of copper pipe, and the variation of copper pipe radian after moulding is often ignored by manufacturer, and being defaulted as is the circular arc of design, therefore, in case large variation occurs circular arc, will cause the center of circle of copper pipe circular arc and casting machine center that larger deviation occurs, when casting machine is produced with high pulling rate, be easy to cause shell growth inhomogeneous, even the problem such as bleed-out.

After known crystallizer diversion water jacket is the corrosion resistant plate punch forming, be welded, because dimensional accuracy is difficult to guarantee in the process, the water seam non-uniform phenomenon in the work between diversion water jacket and the crystallizer copper pipe very easily occurs, and directly causes the growth of base shell inhomogeneous.Chinese invention patent " a kind of method of forming turbulence by cooling water in continuous casting crystallizer and crystallizer " (application number: 200810079470.6 applyings date: 2008-09-25) disclosed turbulence type cooling water continuous cast mold, form rough water seam in the work between water jacket and the crystallizer outer surface so that cooling water flows with turbulence form, strengthened the cooling water heat exchange effect, its weak point is the uniformity consistency that this structure can not be guaranteed water seam between water jacket and the copper pipe, thereby the turbulent flow inequality occurs; (application number: 200920105634.8 applyings date: 2009-02-04) disclosed is to be provided with a plurality of gap adjustment parts between inner water sleeve and the copper pipe to utility model patent " arc-shaped tube-type crystallizer ", its weak point is in the actual use procedure, when water seam inequality occurring, regulate difficulty, the adjusting of passing through that can not be strict realizes water seam uniformity.

Comprehensively foregoing as can be known: if the manufacturing of crystallizer copper pipe and water jacket and installation can be satisfied the requirement of design drawing fully, casting machine is to realize under the condition of high pulling rate steady production, but existing crystallizer copper pipe and water jacket have seriously hindered the sustainable stable realization of drawing high fast function of casting machine in fact because of reasons.

Summary of the invention

The purpose of this utility model is the problem that proposes for background technology, and a kind of crystallizer with split type water jacket is provided, and its diversion water jacket adopts the inventor to apply for disclosed split type water jacket with diversion flume; Crystallizer copper pipe adopts wall thickness only to be equivalent to half thin-wall copper pipe of ordinary mould copper pipe thickness, guarantee the accurate of water jacket radian by the method for machining, and the intensity correction of passing through himself is out of shape the radian of copper pipe, the dimensional accuracy of crystallizer from frame for movement assurance production process, the impact that the unstability of elimination crystallizer copper pipe production causes casting machine.Be conducive to tie the even growth of base shell, be conducive to improve water seam heat transfer effect, be conducive to reduce operating cost.

The technical solution of the utility model is: a kind of crystallizer with split type water jacket is assembled into by crystallizer cylindrical shell, diversion water jacket, crystallizer copper pipe, electromagnetic mixing apparatus and seal; Described crystallizer copper pipe is thin-wall copper pipe, and its wall thickness only is half of known crystallizer copper pipe; It is characterized in that: described diversion water jacket is split type water jacket with diversion flume, be assembled into by alignment pin, firm bolt and seal by inner arc half water jacket and outer arc half water jacket, the outside of water jacket is evenly distributed with crisscross gusset, on the inner chamber of water jacket, be processed with equally distributed vertical rib, namely be diversion flume between adjacent two ribs, the upper end of water jacket has delivery port, lower two ends have water inlet.

Aforesaid a kind of crystallizer with split type water jacket, it is characterized in that: the diversion water jacket upper outside in the described crystallizer has draw-in groove, described draw-in groove cooperates with the crystallizer cylindrical shell by snap ring, water jacket top also has positioning step, cooperates by the snap ring location between described positioning step and the crystallizer copper pipe; Between water jacket and the crystallizer cylindrical shell seal is arranged, seal is also arranged between the inlet water tank of crystallizer cylindrical shell and the water tank, also have seal between water jacket, crystallizer copper pipe, the crystallizer cylinder top cover.Its beneficial effect is: but snap ring and the upper and lower displacement of crystallizer cylinder top cover limiting crystal device copper pipe, crystallizer copper pipe is circumferentially surrounded by water jacket and by fastener bolt crystallizer copper pipe and water jacket is fitted tightly, and guarantees the consistent of crystallizer copper pipe profile radian and water jacket inner chamber groove face radian from structure.

The beneficial effects of the utility model are: adopt (1) split typely will be divided into a plurality of diversion flumes along water jacket inner chamber cooling water with the rib in the water jacket of diversion flume, and bight aquaporin and side and cambered surface aquaporin also separated, be conducive to cooling water and flow by set path, improve water seam heat transfer effect; (2) the equally distributed gusset in the water jacket outside can guarantee that water jacket itself has enough large rigidity with respect to the thin-walled mould copper pipe, can control the distortion of copper pipe on the structure, avoid occurring the center of circle and the casting machine centre deviation problem of copper pipe circular arc, can reach simultaneously the purpose of control cooling, thereby guarantee casting machine steady production under high pulling rate; (3) can make the crystallizer copper pipe of thin-walled press close to solidified shell by regulating hydraulic pressure, reduce the air gap between base shell and the copper pipe, increase the heat transfer effect of crystallizer; (4) because frame for movement has guaranteed the controllability of cooling water seam, can design narrower water seam and improve heat transfer effect, perhaps reduce the crystallizer water yield, reduce the production run cost; (5) significantly reduced the wall thickness of crystallizer copper pipe, not only reduced the manufacturing cost of single copper pipe, simultaneously because the assurance of dimensional accuracy, the wearing and tearing of copper pipe have been reduced, can also improve the service life of single copper pipe, thereby the maintenance cost of decrease spare part, and can effectively improve the production efficiency of casting machine and the stability of product quality.

Description of drawings

Accompanying drawing 1 is the utility model crystallizer assembling schematic diagram;

Accompanying drawing 2 is A place enlarged drawing in the accompanying drawing 1;

Accompanying drawing 3 is split type jacket structure for water schematic diagram with diversion flume;

Accompanying drawing 4 is accompanying drawing 3 left sides and half sectional view.

The specific embodiment

The utility model embodiment is further specified the mark in the accompanying drawing below in conjunction with accompanying drawing: in accompanying drawing 1～accompanying drawing 2,12-seal I, 13-crystallizer cylindrical shell, 14-water jacket, 15-crystallizer copper pipe, 16-securing member, 17-loam cake, 18-snap ring I, 19-seal II, 20-seal III, 21-snap ring II, 22-seal IV, 9-gusset; In accompanying drawing 3～accompanying drawing 4,1-inner arc, half water jacket, 2-outer arc, half water jacket, 3-seal, 4-securing member, 5-alignment pin; 6-tank, 7-water inlet, 8-delivery port, 9-gusset, 10-draw-in groove, 11-positioning step, 23-rib.

With reference to accompanying drawing 1～accompanying drawing 4, a kind of crystallizer with split type water jacket of the utility model is assembled into by crystallizer cylindrical shell 13, diversion water jacket 14, crystallizer copper pipe 15, electromagnetic mixing apparatus and seal; The wall thickness of crystallizer copper pipe 15 only is half of existing known crystallizer copper thickness of pipe wall.The diversion water jacket 14 that is enclosed in crystallizer copper pipe 15 outsides is comprised of inner arc half water jacket 1, outer arc half water jacket 2, seal, securing member and alignment pin 5; There are 19 sealings of seal II in gap between water jacket 14 and the crystallizer cylindrical shell 13, also there is seal I 12 to separate between the inlet water tank of crystallizer cylindrical shell 13 and the water tank, there is snap ring II 21 crystallizer copper pipe 15 upper ends, the excircle orientation of snap ring II 21 is at water jacket 14 upper end positioning steps 11 places, water jacket 14, crystallizer copper pipe, between loam cake 17 threes on copper pipe top, seal III 20 is arranged, be connected by securing member 4 and alignment pin 5 between inside and outside arc half water jacket; But snap ring II 21 and 15 upper and lower displacements of crystallizer loam cake 17 limiting crystal device copper pipes, crystallizer copper pipe 15 is circumferentially surrounded by water jacket 14 and by fastener bolt 4 crystallizer copper pipe 15 and water jacket 14 is fitted tightly, and guarantees the consistent of crystallizer copper pipe 15 profile radians and water jacket 14 inner chamber groove face radians from structure.

Shown in accompanying drawing 3, accompanying drawing 4, the outside of water jacket 14 is evenly distributed with crisscross gusset 9, on the inner chamber of water jacket 14, be processed with a plurality of vertical ribs 23, namely be diversion flume 6 between adjacent two ribs 23, the upper end of water jacket 14 has delivery port 8, lower two ends that water inlet 7 is arranged, because rib 23 is cut apart a plurality of relatively independent diversion flumes 6 of rear formation with water jacket 14 inner chamber cooling-water ducts, and bight aquaporin and side and cambered surface aquaporin also separated, therefore be conducive to cooling water and flow by set path, improve water seam heat transfer effect.On the other hand, can also by the uninterrupted of control water inlet 7 and delivery port 8, reach the effect that to regulate cooling water inflow.The effect of gusset 9 is to guarantee that water jacket 14 itself has enough large rigidity with respect to crystallizer copper pipe 15, can control the distortion of copper pipe 15 on the structure.

Can find out from the utility model embodiment, crystallizer copper pipe 15 is directly with after water jacket 14 is connected to link to each other with crystallizer cylindrical shell 13 again, between copper pipe 15 and the water jacket 14 snap ring 21 is arranged, between water jacket 14 and the cylindrical shell 13 snap ring 18 is arranged also, also have

seal

19 and 20 sealings, because there is the gusset 9 of reinforcement water jacket 14 outsides, after the assembling of two and half arc water jackets sufficient intensity is arranged, can guarantee that crystallizer copper pipe 15 can not be out of shape, water seam between water jacket 14 and the copper pipe 15 is because of the directional guide effect of diversion flume, so that the even directed flow of cooling water, thereby guarantee casting machine steady production under high pulling rate; Can also make the crystallizer copper pipe 15 of thin-walled press close to solidified shell by regulating hydraulic pressure, reduce the air gap between base shell and the copper pipe 15, increase the heat transfer effect of crystallizer; Or the narrower water seam raising heat transfer effect of design, also can adopt more thin-wall copper pipe, reduce the copper pipe manufacturing cost, improve the service life of copper pipe, reduce the maintenance cost of spare part, the safety in production when being conducive to casting machine with high pulling rate.

Claims

1. the crystallizer with split type water jacket is assembled into by crystallizer cylindrical shell, diversion water jacket, crystallizer copper pipe, electromagnetic mixing apparatus and seal; It is characterized in that: described diversion water jacket is split type water jacket with diversion flume, be assembled into by alignment pin, firm bolt and seal by inner arc half water jacket and outer arc half water jacket, the outside of water jacket is evenly distributed with crisscross gusset, on the inner chamber of water jacket, be processed with equally distributed vertical rib, namely be diversion flume between adjacent two ribs, the upper end of water jacket has delivery port, lower two ends have water inlet.

2. a kind of crystallizer with split type water jacket as claimed in claim 1, it is characterized in that: the diversion water jacket upper outside in the described crystallizer has draw-in groove, described draw-in groove cooperates with the crystallizer cylindrical shell by snap ring, water jacket top also has positioning step, cooperates by the snap ring location between described positioning step and the crystallizer copper pipe; Between water jacket and the crystallizer cylindrical shell seal is arranged, seal is also arranged between the inlet water tank of crystallizer cylindrical shell and the water tank, also have seal between water jacket, crystallizer copper pipe, the crystallizer cylinder top cover.