DE2349189A1 - Quenching tank for long parts - with transport rolls and top and bottom water sprays - Google Patents

Abstract

The tank contains transport rolls for conveying the parts and water-spray tubes underneath the transport rolls. The novelty is that water-spray tubes are also mounted above the transports rolls, the upper and lower sprays being operated alternately. Both the upper and lower spray tubes are pref. arranged in horizontal rows near to each other and parallel to the transport rolls. Min. distortion of long parts can be directly fed into an automatic straightening machine from the quench tank.

Description

P,;!, Inn. W. DaMka

^υΐ 'ρ _α ν.Γήία «ν · Γ: ^ί .' ^{ΪΓ |} " ²⁸ September 1973

· Χ. (· Re'rath cei Y-.d \ i \

Jean Nassheuer

Industrial furnace construction and electrical engineering Troisdorf

"Flood basins for quenching elongated

Glowing good »·

The invention relates to a flooding basin for quenching elongated annealing material with conveyor rollers for receiving the annealing material as well as spray pipes arranged below the conveyor rollers, which are connected to a cooling water supply and have cooling water outlet openings are provided »

509815/0667

When quenching elongated material to be annealed, it is important that the material to be annealed does not warp. The best results have been achieved in this regard in flooding basins, since the flooding bath allows the glowing material to cool down relatively evenly guaranteed. In order to counteract any distortion of the annealing material during treatment in flooding baths, in the flooding bath Circulating currents generated, for example with the help of initially mentioned spray pipes, which are provided with KUhlwasserauslaß. Due to the cooling water escaping from the spray tubes a primary flow is generated below the incandescent material, which in turn is a secondary flow sweeping past the incandescent material causes. This effect achieves a uniform one-sided flow of the material to be annealed.

In many cases, however, the known measures are not sufficient to obtain perfect quenching material * It is therefore it is often necessary to straighten the material by hand after quenching and then by an automatic straightening device let it run.

The invention is based on the object of creating a flooding basin in which the annealing material is not quenched more or only so slightly warped that it is no longer straightened by hand before passing through the automatic straightening device needs to become.

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According to the invention this object is achieved in that. more spray tubes are arranged above the conveyor rollers and that the cooling water can be applied to the lower and upper spray tubes in an alternating sequence.

The inventive constructive measure is effected during the quenching process that the quenched in alternating Sequence is flowed evenly from above and below. Due to this uniform flow, the annealing " well over its entire circumference at the same speed, so that there can hardly be any delay.

Particularly favorable flow conditions arise when the upper and lower spray tubes each in a horizontal position Plane are arranged side by side and preferably parallel to the conveyor rollers.

The nozzle-shaped cooling water outlet openings are expedient Arranged on one side of the spray pipes and are on different sides of the upper and lower spray pipes. As a result, the currents emerging alternately from the cooling water outlet openings above and below the material to be annealed are opposite directed, so that the rate of change of the direction of flow is accelerated.

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The KUhlwasseraus exits are preferably slits formed, which run in a surface line of the spray tubes.

In order to adapt the direction of the primary flow and thus the direction and intensity of the secondary flow to the individual operating case To be able to change, the spray tubes are preferably angularly adjustable about their longitudinal axis.

To a large extent around the generated currents within the quenching bath To keep them free of eddies, vertical baffles are preferably provided parallel to the outlet openings of the spray tubes. By arranging these baffles, the cooling effect is evened out and the annealing material is almost warped locked out.

The guide plates expediently extend over the entire length of the flooding basin and can be arranged both in the area of the upper and in the area of the lower spray tubes, with they protrude above and below this.

To the currents generated in the quenching bath over the entire To keep the width of the pool free of eddies, the distances between the individual sheets should be small. Appropriate the respective distance is dimensioned so that two to three of the adjacent profiles of the annealing material

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* I I * C

I * f

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come to rest between two baffles:

The invention is illustrated in the drawing, for example and described in detail below with reference to the drawing. Show it: ·

Fig. 1 shows a longitudinal section through flooding b @ © lc @ E and

Fig. 2 is a cross-section showing the IO ^ t ^ gsfeeeIsaa © along the line H-II

In the drawing is a Flutüsgebs-s & fca 2 iss ^ ggstQUisj, <Sas sit cooling liquid is filled * M h ^ Mismi lisiica iss fte 2 are closable passages 4 ^^ gese & ssp dtoFsfe iis stretched annealing material, for example IiIiFe β »® @ itli © & £ e flooding bath into it isnd from disssa κΐζί, ® * ⁹ l & Qi? i3 £ ^ can fall. Inside the Fl «t« ngsb @ e & ^ as 2 ra & t ias CSUIfe, arranged transversely to the conveying direction, FSrderwalsesi B _s üi® are stored in the lateral longitudinal walls of the flooding basin 2 . On one side are the conveyor rollers isur l ^ ß © ns @ ite of the river basin led out and on. e. @ m outside llegeiadeiE INDT provided with a driving roller 1o for driving the Ffirderwalzen S * The elongated / rlühgut is during AbschreOMvorgaiigs over the entire width of the Flutußgsbeckeas distributed in a parallel arrangement next to each other, where $ ®aooh Abstimäe between the individual strands for the passage of . Cooling water left

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Below and above the conveyor rollers 8 are provided spray pipes 12 and 14 which run parallel to the conveyor rollers are connected to a cooling water supply not shown in the drawing * The ones below and above the conveyor rollers arranged spray tube 3 12 and. 14 are arranged in parallel layers and extend over the entire length of the flood basin.

The la den Sprühro & res vorsssehsner ^ cooling water outlet openings are designed as longitudinally triangular fchlitiss 16 or * 18, which are on one side sn the sprühc ^ sgi a ^ aoriseii sisxd and at the upper and lower sprl! Tii? -Hre & ζά £ -below -sühisiiXIchen sides. li & ch Pig * 1 siM the KühX ^ s ^ p &ustrit'ägsohlitss 16 provided at the lower Sprübrsfcrm 12 on the right side ¹ while the -oberta Spruhrolire 14 'the KUhlwasseraustrittsöffnungen 18 on the left side aufweiss2iu

The "lower and upper SprUhrohre 12 BZV -> 14 can be acted upon in an alternating sequence with cooling water" that _"s when from the lower spray pipes 12 flows according to the shown in the drawing arrows cooling water, the cooling water supply is interrupted to the upper spray pipes 14 In the following cycle, cooling water flows out of the outlet nozzles 18 of the upper spray tubes 14 in accordance with the dashed arrows during

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the supply of cooling water to the lower spray tubes 12 is interrupted is.

extend over the entire length of the flooding basin vertically arranged baffles 2o and 22. The baffles extend thus in the direction of the cooling water flow emerging from the outlet openings 16 and 18 of the spray tubes 12 and 14, respectively and ensure a relatively eddy-free flow. which is directed essentially in the longitudinal direction of the flooding basin. The baffles are the two layers of the spray tubes 12 and 14 assigned and project over them upwards and downwards, while the middle area of the flooding basin in which the conveyor belts 8 and the annealing material 6 are left free. The distances between the baffles are chosen so that each about two to three profiles of the material to be annealed come to lie between the guide plates.

509815/0667

Claims (9)

- 8 patent claims 1. Flooding basin for quenching elongated glowing material with conveyor rollers for receiving the annealing material as well as spray pipes arranged below the conveyor rollers, which are attached to a The cooling water inflow is connected and provided with cooling water outlet openings, characterized in that that above the conveyor rollers (8) further spray tubes (14) are provided and that the lower and upper spray pipes (12, 14) can be acted upon in alternating sequence with cooling water. 2. flooding basin according to claim 1, characterized in that the upper and lower spray tubes (12, i4) each side in a horizontal plane are arranged side by side. 3 * flooding basin according to claim 2, characterized in that that the spray pipes (12, 14) are arranged parallel to the conveyor rollers (8). 4. flooding basin according to one of claims 1 to 3, characterized in that the cooling water outlet openings (16 or 18) are arranged on one side of the spray pipes (12 or 14) and at the top - 9 509815/0667 and lower spray tubes are on different sides. 5. flooding basin according to one of the preceding claims, characterized in that the Cooling water outlet openings (16 or 18) are designed as slots in a surface line of the spray tubes (12 or 14) run. 6. Flooding basin according to one of the preceding claims, characterized in that the spray pipes (12, 14) are adjustable in angle about their axes. 7 · flood basins, especially after one of the previous », going claims, characterized in that in the direction of the outlet openings (16, 18) of the spray tubes (12, 14) vertical baffles (2o, 22) are provided. 8. Flooding basin according to claim 7 "characterized by" * indicates that there are al9 baffles * ι (2o, 22) over the entire length of the flood basin * (2) extend. - • 1ο -509815/0667 - 1ο - 9. flooding basin according to claim 7 or 8, characterized in that the guide plates (2o, 22) are arranged in the area of the upper and lower spray tubes (12, 14) and protrude above and below them. '^ 1o. Flooding basin according to one of Claims 7 to 9, there characterized in that the distance between the individual baffles (2o, 22) is dimensioned so that in each case about two to three of the side by side lying profiles (6) of the material to be annealed comes to lie between two guide plates. 509815/0667 A / Blank page