CS211183B1

CS211183B1 - Apparatus for exhaustion and filtration of flue dust at manipulation with liquid metal in converter steel plant

Info

Publication number: CS211183B1
Application number: CS390380A
Authority: CS
Inventors: Jan Kubaliak
Original assignee: Jan Kubaliak
Priority date: 1980-06-03
Filing date: 1980-06-03
Publication date: 1982-01-29

Description

Uvedené nedostatky odstraňuje a problém rieši zariadenie pre odsávanie a filtráciu úletov pri manipulácii s tekutým kovom na konvertorovej oceliarni najma nad hrdlom konvertora a nad miešačmi podlá vynálezu.The above-mentioned drawbacks are overcome and the problem is solved by a device for sucking and filtering the debris when handling the liquid metal at the converter steel plant, especially above the converter neck and above the mixers according to the invention.

Podstata vynálezu spočívá v tom, že nad hrdlom konvertora, ktoré je vybavené posuvným kesonom « bočným výsunom, odtahom a dýmovým ventilátorom je vytvořený zvisle posuvný tesniaci prstenec s prívodom a vývodom chladenia a vývodom pomocného odsávania, ktorý prekrýva medzeru medzi hrdlom konvertora a posuvným kesonom. Ďalej je vytvořené odsávacie potrubie ukončené odsávaciťoi košmi sklopné uloženými v otočných klbových spojoch, opatřenými uzatváracimi klapami a umiestnených nad osou nalievania konvertora, nad hrdlom miešača alebo aj do guličkovodov spalinových kotlov, pričom vývod odsávacieho potrubia je napojený na filtračný prepa211183 dový kanál, vybavený rozvodom vody β rozstrekovačmi a rozstrekovacímí tryskami a nakoniec z dýmového ventilátore. Zariadenie je β výhodou usporiadané tak, že vývod z přepadového kaná^ lu je napojený na odtahový komín do plynoči&tiarae.SUMMARY OF THE INVENTION A vertical sliding sealing ring with a cooling inlet and outlet and an auxiliary suction outlet overlapping the gap between the converter throat and the sliding chamber is provided above the converter throat, which is equipped with a lateral displacement, exhaust and smoke fan. Furthermore, an exhaust duct is formed which is terminated by exhaust ducts with hinged baskets mounted in rotary joints, provided with shut-off flaps and located above the converter pouring axis, above the mixer neck or into the flue gas boiler ducts, the exhaust duct outlet being connected to β sprinklers and spray nozzles and finally from the smoke fan. The device is preferably arranged such that the outlet of the overflow channel is connected to the exhaust stack to the gasifier.

Výhody .vynálezu sú hlavně v tom, že ea zabezpečí podstatné zlepSenie pracovných podmienok na oceliarni, zníži sa znečistenie okolia ako výtěžnost úletu, všetko bez obmedzenia funkcie jednotlivých objektov.The advantages of the invention are mainly in that it ensures a substantial improvement of the working conditions at the steel plant, the pollution of the environment is reduced as the drift yield, all without limiting the function of the individual objects.

Příklad uskutočnenia zariadenia podlá vynálezu je znázorněný na přiložených výkresoch, pričom obr. 1 a 2 znázorňujú umieetnenie a konštrukciu tesniaceho prstence, obr. 3 znázorňuje schematický celý komplex rozvodu odsávania s odsávacími košmi a obrázky 4 a 5 znázorňujú odeávanie guličkovodu a konštrukciu přepadového kanála s vodným Čistěním.An embodiment of the device according to the invention is shown in the accompanying drawings, wherein FIG. 1 and 2 show the positioning and construction of the sealing ring; FIG. Fig. 3 shows a schematic of the entire exhaust manifold complex with exhaust baskets; and Figs. 4 and 5 illustrate the aspiration of the ball duct and the construction of the overflow channel with water purification.

Na odsávacom potrubí 15 před vývodom do odtahového komína je zaradený ventilátor 31» před ktorým je umiestnený filtxačný přepadový kanál 24 vybavený mriežkou 25 a rozvodom vody 23 s rozstrekovačmi21 a rozstrekovacími tryskami 22 ovládanými cez uzavieraci ventil 19 v potrubí 20. Odsávacie potrubie 15 je zaústěné a je vedené od jednotlivých odsávacích miest, Jedným z odsávaných miest sú guličkovody 26 umiestnené na podložke 27 v odsávacích košoch 11 spalin spalinového kotlá, od ktorých je odtah vedených cez uzatváracie klapy 13 a cez napojovacie potrubie 14 súčasne zapojený na výstup 30 od spalinových kotlov 28 cez prepúštacie ventily 29. Odsávacie koše 11 sú umiestnené dalej nad brdlom 17 miešača 18 pri nalievaní z vane 16 surového železa a nad osou konvertora £ v jeho sklopenej polohe a sú odklopené v klbových epojoch 2.· Nakoniec vývod pomocného odsávania ]_ je napojený od tesniaceho prstenca 4^. Samotný tesniaci prstenec £ je vybavený aj prívodom £ a vývodom £ chladiacej vody a je zvisle posuvné uložený po obvode 3 výsuvného kesónu J_ ^na zdvižných lanách 2. uchytených v závěsných okách £ a vedený v drážkách 10.On the suction line 15 before the outlet to the exhaust chimney there is a fan 31 in front of which is located a filtering overflow channel 24 equipped with a grille 25 and water distribution 23 with sprinklers21 and spray nozzles 22 controlled through shut-off valve 19 in line 20. The suction line 15 is One of the suction points are the ball ducts 26 located on the support 27 in the exhaust baskets 11 of the flue gas boiler, from which the exhaust is led through the shut-off columns 13 and via the connecting pipe 14 simultaneously connected to the outlet 30 from the flue gas boilers 28 Relief valves 29. The suction baskets 11 are located further above the stirrer 17 of the mixer 18 when pouring from the pig iron tub 16 and above the axis of the converter 6 in its stowed position and are folded out in the articulated joints 2. Finally. ring 4 ^. The sealing ring 8 itself is also provided with a cooling water inlet 6 and a cooling water outlet 6 and is vertically displaceably mounted around the circumference 3 of the sliding caisson 1 ^{on the} hoisting ropes 2 fastened in the eyelets 4 and guided in the grooves 10.

Počas tavby je teeniaci prstenec £ spustený až na hrdlo konvertora 8 tak, že prekrýva medzeru medzi výsuvným kesónom a konvertorom £ a usměrňuje celý objem úletu do odtahového komína. Případný malý únik cez medzeru je odsávaný pomocným odsáváním 7,. Před sklopením konvertora <8 například pre plnenie alebo odpich sa zdvihne tesniaci prstenec 4, a potom sa vysunie bokom spolu s výsuvným kesónom J.. Súčasne sa sklopí odsávací koš JU. nad os konvertora £ a otvorí sa uzatváracia klapa 13 . Rovnako sa zapájajú jednotlivé odsávané miesta 17 alebo 11 připadne ďalšie volené miesta so zamořeným priestorom.During melting, the teenage ring 6 is lowered to the neck of the converter 8 so that it overlaps the gap between the withdrawable chamber and the converter 8 and directs the entire volume of the drift into the flue. Any small leakage through the gap is sucked out by the auxiliary suction 7. Before tilting the converter < 8, for example for filling or tapping, the sealing ring 4 is lifted and then slid sideways together with the withdrawable caisson J. Simultaneously, the suction basket 11 is lowered. above the converter axis 6 and the shut-off flap 13 opens. Also, the individual exhaust points 17 or 11 or other selected contaminated sites are also involved.

Claims

211183 duct, equipped with water distribution system and sprayers and spray nozzles and finally smoke fan. The device is and preferably uaporized so that the outlet from the overflow channel is connected to the exhaust chimney into a gas-fired gas plant. The advantages of the invention are mainly due to the fact that they ensure a substantial improvement of the working conditions of the steelworks, reduce and pollute the environment as a drift, all without limiting the function of individual objects. 1 and 2 show the location and structure of the caliper ring, FIG. 3 shows a schematic whole of the suction distribution complex and suction baskets, and FIGS. 4 and 5 illustrate the withdrawal of the spherical passage and the overflow channel structure. Water Purification. On the suction line 15, upstream of the outlet to the exhaust chimney, a fan 31 ' is placed in front of which a filtering overflow channel 24 is provided, equipped with a grid 25 and a water distribution system 23 with sprayers 21 and spray nozzles 22 operated through the shut-off valve 19v of the conduit 20. The suction line 15 is outleted and guided From one of the suction points, one of the suction points is the spheres 26 located on the washer 27 in the flue gas boiler exhaust basins 11 from which the exhaust is conducted through the closure gaps 13 and simultaneously connected to the outlet 30 from the flue gas boilers 28 via a discharge line. 29. The suction baskets 11 are located above the neck 17 of the mixer 18 when pouring from the pig iron bath 16 and above the converter axis 8 in its tilted position and are folded out in the clamping jaws 2. · Finally, the auxiliary suction outlet] _ is connected to the flowing ring. 4 ^ Self-sealing ring The ec aj is also provided with a cooling water inlet 6 and is vertically slidable along the periphery 3 of the withdrawable vessel 11 on the lifting ropes 2 attached to the hinge lugs and guided in the grooves 10. the throat of the converter 8 so that it overlaps between the extending caisson and the converter 8 and directs the entire volume of the drift to the exhaust chimney. Any small leakage through the gap is sucked out by the auxiliary suction 7,. For example, before folding the con- verter 8, for example for filling or tapping, the melting ring 4 is lifted and then ejected together with the withdrawable caisson At the same time, the suction basket 11 is folded over the axis of the converter 8 and a closing flap 13 is formed. Likewise, the individual exhausted sites 17 or 11 are connected to the other selected locations with the contaminated area. SUBJECT OF THE INVENTION

1. A device for extracting and filtering drift when handling liquid metal at a converter steel mill is located above the neck of a converter equipped with a side-sliding slider, exhaust and smoke fan, characterized in that it consists of a vertically sliding caliper (4) with inlet / 5 and a coolant outlet (6) and an auxiliary suction outlet (7) and a overlapping gap between the converter neck (8) and the displacement caisson (1), further from the suction pipe (15) terminated by suction baskets (11) hingedly mounted in rotary and with closure flaps (13) which are located above the pouring axis of the converter (8), above the neck (17) of the mixer (18), and into the ball ducts (26) of the flue gas boilers next to the filter overflow channel (24). a water distribution system (23) with sprayers (21) and spray nozzles (22) and finally a smoke fan (31).

2. Apparatus according to claim 1, characterized in that the outlet of the suction line (15) from the overflow channel (24) is connected to the exhaust chimney into the gas-cleaning plant.

3 sheets of drawings by Severoerafl. o. p .. race 7. Most