SU1296808A2

SU1296808A2 - Open-hearth furnace regenerator

Info

Publication number: SU1296808A2
Application number: SU853880221A
Authority: SU
Inventors: Григорий Ефимович Марьянчик; Борис Семенович Чайкин; Геннадий Зинатович Гизатулин; Александр Федорович Папуна
Priority date: 1985-04-03
Filing date: 1985-04-03
Publication date: 1987-03-15

Abstract

Изобретение относитс к черной металлургии, конкретнее к регенераторам мартеновских печей, и вл етс дополнительным к изобретению по авт. св. № 909512. Цель изобретени - снижение расхода топлива и повышение стойкости кладки печи. Регенератор снабжен воздуховодом 10 с установленным на нем отсечньм клапаном II, соединенным с наднасадочным пространством 4 холодной камеры или верхней частью ее отводного канала 7. Подвод вентил торного воздуха осуществл ют в наднасадочное пространство 4 или в верхнюю часть отводного канала 7, мину дымовой боров В, при этом исключаетс сопротивление дымоспада на пути вентил торного воздуха, снижаютс подсосы воздуха через шиберы на 40%. I ил. (О ю со 05 00 о 00 rsjThe invention relates to ferrous metallurgy, more specifically to regenerators of open-hearth furnaces, and is additional to the invention according to the author. St. No. 909512. The purpose of the invention is to reduce fuel consumption and increase the durability of the furnace masonry. The regenerator is provided with an air duct 10 with a cut-off valve II installed on it, connected to the supernatural space 4 of the cold chamber or the upper part of its exhaust duct 7. The fan air is supplied to the supra-cooling electrical space 4 or to the upper part of the exhaust duct 7, mine bore B, this eliminates the resistance of the smoke in the path of the fan air, reduces air inflow through the gates by 40%. I il. (About you from 05 00 o 00 rsj

Description

металлургии, в частности к мартеновским печам, конкретнее к регенераторам , которые позвол ют утилизировать тепло отход щих из рабочего пространства печи дымовых газов ,дл нагрева воздуха, используемого дл горени топлива, и вл етс дополнительным к авт.св. № 909512metallurgy, in particular, open-hearth furnaces, more specifically, regenerators, which allow to utilize heat from the flue gas from the furnace, to heat the air used for burning fuel, and is additional to auth. No. 909512

Целью изобретени вл етс снижение расхода топлива и повышение стойкости кладки печи.The aim of the invention is to reduce fuel consumption and increase the durability of the furnace masonry.

На чертеже изображен регенератор, продольный разрез.The drawing shows a regenerator, a longitudinal section.

К шлаковику 1 мартеновской печи примыкает двухоборотньм регенератор состо щий из гор чей камеры с наднаса- дочным пространством 2 и насадкой 3 и холодной камеры с наднасадочным пространством 4 и насадкой 5. Низ гор чей и холодной камер соединены общим поднасадочным пространством 6..A slag furnace 1 of an open-hearth furnace is adjoined by a double-turn regenerator consisting of a hot chamber with a supra-nodular space 2 and a nozzle 3 and a cold chamber with a supernatant space 4 and a nozzle 5. The bottom of the hot and cold chambers are connected by a common sub-nodular space 6 ..

Наднасадочное пространство 4 холодной камеры при помощи отводного канала (дымоспада) 7 соединено с дымовым боровом 8, на котором установлен шибер 9, Верхн часть дымоспад 7 соединена с дутьевым вентил тором при помощи воздуховода 10 с установленным на нем отсечным клапаном 11„The supernatant space 4 of the cold chamber is connected to the flue bore 8 by means of the exhaust duct 7, on which the gate 9 is installed. The upper part of the fumes 7 is connected to the blower fan by means of the air duct 10 and the shut-off valve 11 installed on it.

. Регенератор работает следующим образом.. The regenerator works as follows.

Дымовые газы мартеновской печи, пройд через шлаковик 1, поступают в Наднасадочное пространство 2 гор чей камеры регенератора, проход т насадк 3, а затем через общее поднасадочно пространство 6 попадают в насадку 5 The flue gases of the open-hearth furnace, having passed through slag-stone 1, enter the Supernatant space 2 of the hot chamber of the regenerator, pass through the nozzle 3, and then through the common sub-vertical space 6 fall into the nozzle 5

холодной камеры, Наднасадочное прост- 40 зитс на 4-6 кг/т, расход огнеупоранство 4, через дымоспад 7 - в дымовой боров 8 и далее через открытьк щибер 9 - в общий боров печи. При i этом отсечной клапан 11 на воздуховоде 10 закрыт.cold chambers, Supernatant space - 40 zits per 4-6 kg / t, consumption of refractory 4, through fumes 7 - into the smoke bore 8 and then through the opener schiber 9 - into the common bore of the furnace. When i this shut-off valve 11 on the duct 10 is closed.

Во врем нагрева воздуха шибер 9 на Д1)1мовом борове 8 закрыт и дымовые газы отвод тс через противоположную головку мартеновской печи во второй регенератор. Отсечной клапан на воздуховоде 10 открываетс и воздух от дутьевого вентил тора поступает в верхнюю часть дымоспада 7, а оттуда в Наднасадочное пространствоDuring air heating, the gate 9 on the D1) 1 m boar 8 is closed and the flue gases are discharged through the opposite head of the open-hearth furnace to the second regenerator. The shut-off valve on the duct 10 opens and the air from the blower fan enters the upper part of the fume hood 7, and from there into the supernatant space

ров на 0,3-0,5 кг/т.0.3-0.5 kg / ton ditch.

Claims

Invention Formula

45 Regenerator open-hearth furnace auth.St. No. 909512, which is distinguished by the fact that, in order to reduce fuel consumption and increase stovepieces, it is equipped with an air duct

50 fan air with a shut-off valve, which is connected to the supra-nesting space of the cold chambers or the upper part of its drainage channel.

VNIIPI Order 763/40 Circulation 544 Subscription Proizv.-poly. Irtne, Uzhgorod, ul, Proektna, 4

five

0

five

0

five

through the subnasal space 6 into the nozzle 3 of the hot chamber, the supernatant space 2, slag I and then into the working space of the open-hearth furnace

Since the supply of fan air is not carried out in the flue, but in the supra-nesting space or in the upper part of the Fluespad, the resistance of the flueless effect to the path of the flueed air is eliminated, the temperature of the flueless exhaust temperature increases to 700-800 ° C, since it is no longer cooling. fan air. As a result, a vacuum is created in the smoke speed, the value of which is determined by the height of the smoke speed and the temperature of its laying. At normal elevations of smoke speed, the negative pressure in its lower part is 7–9 mm.

Thus, the fan air is cut off from the hog, and the pressure drop around the gate valve is reduced from 40-60 to 20-30 mm of water, station, i.e. approximately twice, B result of this, air inflow through gates decreases by 40%

The regenerator's renewable design makes it possible to eliminate the leakage of a significant part of the fan air through the smoke gate into the common bore. In addition, the heat and heat of the furnace is improved, the consumption of fuel is reduced and the working space is improved, and the condition of the maintenance of the furnace is improved.

Thus, the fuel consumption when using the invention is reduced by 0.3-0.5 kg / ton.

Invention Formula

45 Regenerator open-hearth furnace auth.St. No. 909512, which is distinguished by the fact that, in order to reduce fuel consumption and increase the resistance of the furnace masonry, it is equipped with an air duct

50 fan air with a shut-off valve, which is connected to the supra-packing space of the cold chamber or the upper part of its discharge channel.