SU662586A1

SU662586A1 - Shaft furnace cooler

Info

Publication number: SU662586A1
Application number: SU772457544A
Authority: SU
Inventors: Анатолий Васильевич Жердев; Григорий Саввич Якименко; Анатолий Степанович Горбик; Яков Израильевич Городецкий; Владимир Семенович Пустовар; Лев Дмитриевич Грицук; Николай Иванович Артюшенко; Игорь Иосифович Дышлевич
Original assignee: Предприятие П/Я Г-4774
Priority date: 1977-03-01
Filing date: 1977-03-01
Publication date: 1979-05-15

Description

(54) холодильник ШАХТНОЙ ПЕЧИ(54) FURNACE MILK Fridge

1one

Изобретение относитс к области металургии , в частности к устройствам дл охлаждени доменных печей.The invention relates to the field of metallurgy, in particular to devices for cooling blast furnaces.

Известен ребристый плитовый холодильник , выполненный из чугуна, в котором р дами залиты огнеупорные кирпичи 1.A ribbed slab refrigerator made of cast iron is known in which refractory bricks 1 are poured in rows.

Недостатками известного холодильника вл ютс наличие остаточных литейных напр жений в плите и увеличение их при нагреве и охлаждении во врем эксплуатации, что приводит к растрескиванию плить и разрушению охлаждающих ее труб.The disadvantages of the known refrigerator are the presence of residual casting stresses in the slab and an increase in them during heating and cooling during operation, which leads to the cracking of the slab and the destruction of its cooling pipes.

Известен ребристый плитовый холодильник без зaлиtoгo огнеупорного кирпича, в котором на рабочей поверхности плиты большой толщины выполнены ребра дл удержани гарниссажа 2.A ribbed slab cooler is known without a refractory brick floor, in which fins are made on the working surface of a plate of a large thickness to hold the garnish 2.

Недостатками этого известного холодильника вл ютс недостаточное охлаждение рёбери разрушение их от перегрева и термических напр жений, что приводит к растрескиванию плиты и разрушению охлаждаюших ее труб и, соответственно, к поступлению воды в рабочее пространство печи.The disadvantages of this known cooler are insufficient cooling of the ribs, their destruction from overheating and thermal stresses, which leads to the cracking of the plate and the destruction of its cooling pipes and, accordingly, to the flow of water into the working space of the furnace.

Наиболее близким по технической сущности и достигаемому результату вл етс The closest in technical essence and the achieved result is

ХОЛОДИЛЬНИК ДЛИ металлургических шахтных печей, состо щий из металлической плиты с залитыми в иее по типу «труба в трубе изогнутыми тепловыми трубами, соединенными с камерой конденсации. Камера конденсации снабжена прикрепленной в ее нижней части перегородкой с отверстием, сочлененным с внутренней опускной трубкой 3.REFRIGERATOR DLI metallurgical shaft furnaces, consisting of a metal plate with a curved heat pipes connected to a condensation chamber filled with a pipe in a pipe. The condensation chamber is provided with a partition attached to its lower part with a hole articulated with an internal descending tube 3.

Недостатком известного холодильника вл етс наличие термических напр жений в массивной плите, которые привод т к растрескиванию ее и разрушению тепловых труб и всего холодильника.A disadvantage of the known refrigerator is the presence of thermal stresses in the massive plate, which lead to its cracking and destruction of the heat pipes and the entire refrigerator.

С целью повышени стойкости холодильника и прочного удержани огнеупорного заполнител и гарниссажа предлагаемый холодильник выполнеи из металлических брусьев, расположенных друг от друга на рассто ний 0,2-0,7 их толщины и жестко скрепленных между собой тепловыми трубами и ребрами жесткости, при этом огнеупорный заполнитель размещен между брусь ми.In order to increase the durability of the refrigerator and firmly hold the refractory filler and garnish, the proposed refrigerator is made of metal bars spaced 0.2–0.7 from their thicknesses and rigidly fastened together with heat pipes and stiffening ribs, while the refractory aggregate placed between bars

Claims

FIG. 1 shows a general view of the described refrigerator; FIG. 2 - longitudinal section A-L; in fig. 3 and 4 are the cross-sections of the refrigerator BB and BB. The refrigerator consists of horizontal metal bars 1, then 1 new pipes 2, which together form a rigid cooled frame of the refrigerator. The space between the bars and heat pipes is filled with refractory filler 3. The heat pipes in the space between the bars are connected by vertical fins 17 and hardness 4. The heat pipes in the upper part of the refrigerator are brought out of the casing 5 of the furnace and equipped with a heat exchanger 6. The distance between the bars and 0, 2-0.7 of their thickness was chosen from the conditions for creating the necessary mechanical and thermal stability of the refrigerator. A decrease in the distance less than 0.2 of the thickness of the bars will lead to the destruction of the refractory material from mechanical stresses during the thermal expansion of the bars during the refrigerator. Increasing the distance more than 0.7 of the thickness of the bars will result in spontaneous loss of the refractory material and, accordingly, decrease the resistance of the refrigerator. When the refrigerator heats up, the heat flow is perceived by horizontal metal bars I, through which heat is transferred to the cooling heat pipes 2. Water boils in the heat pipes under the action of heat flow, and the steam pipe enters the mixture into the heat exchanger b, where the condenser is formed returns to the evaporation part of heat pipes 2. Metal horizontal bars I increase their linear dimensions during heating, however, the tensile axial forces on heat pipes are not give that avoids the possibility of fracture of the heat pipes at tsmporaturioy deformation stiffeners. The vertical stiffeners 4 connecting the heat pipes provide gas tightness in the space between the bars I. The refractory filler 3 is well kept in the space between the bars, and contact with the cold heat bars contributes to raising its height. stamina. When refractory material is destroyed during operation, garnissage is formed on heat pipes. The proposed refrigerator will prevent the ingress of water into the working space of the furnace, the possible destruction of the cooling heat pipes from thermal stresses during operation and increase its durability. Claims of the Invention Refrigerator of a shaft furnace containing heat pipes connected to heat exchangers and refractory aggregate, characterized in that, in order to increase the durability of the refrigerator and firm retention of the biohazard filler and garnish, the refrigerator is made of metal bars located from each other and 0 , 2-0.7 of their thickness and rigidly fastened together by heat pipes and ribs, while the refractory filler is placed between the bars. Sources: information taken into account during the examination 1.A.T. 85297, cl. From 21 to 7/10, 1934.

2. Sorokin L. A. Work designs blast furnaces, “Metallurgists, 1976, p. 27.

3. Author's certificate 499300, cl. From 21 to 7/10.

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