SU707966A1

SU707966A1 - Device for destroying lining of pit furnaces

Info

Publication number: SU707966A1
Application number: SU742039121A
Authority: SU
Inventors: Виктор Александрович Матвеев; Марк Александрович Гурин; Владимир Николаевич Еремин; Александр Сергеевич Емельянов; Анатолий Моисеевич Лехтик
Original assignee: Уральский ордена Трудового Красного Знамени политехнический институт им.С.М.Кирова; Уральский Специализированный Трест По Ремонту Доменных И Мартеновских Печей "Уралдомнаремонт"
Priority date: 1974-07-01
Filing date: 1974-07-01
Publication date: 1980-01-05

Description

Изобретение относится к металлургии.The invention relates to metallurgy.

Наиболее близким к описываемому изобретению по технической сущности и . достигаемым результатам является устройство для разрушения футеровки шахтных печей, содержащее подвесную платформу с раздвижными упорами, под которой на цапфе закреплена консольная телескопическая балка с приводом, причем на подвижной части ее расположен ударно-вибрационный инструмент [1]. ¹ Closest to the described invention in technical essence and. The achieved results are a device for breaking the lining of shaft furnaces, containing a suspension platform with sliding stops, under which a cantilever telescopic beam with a drive is fixed on the trunnion, and a vibration-vibration tool is located on its movable part [1]. ¹

Недостатками устройства является малая производительность, невозможность разрушения подины печи, большие габариты.The disadvantages of the device are low productivity, the inability to destroy the hearth of the furnace, large dimensions.

Цель изобретения - увеличение производительности устройства при разрушении футеровки; уменьшение габаритов устройства; возможность разрушения футеровки подины шахтной печи; повышение ра— ? ботоспособности устройства; возможность использования платформы устройства для выполнения демонтажных и монтажных работ во время ремонта печи.The purpose of the invention is to increase the productivity of the device during the destruction of the lining; downsizing of the device; the possibility of destruction of the lining of the bottom of the shaft furnace; increase ra—? device health the possibility of using the platform of the device to perform dismantling and installation work during the repair of the furnace.

Поставленная цель достигается тем, что ударно-вибрационные инструменты шарнирно монтированы на радиальных телескопических балках,' закрепленных на общей цапфе в центре платформы, с возможностью независимого поворота. Поворот осуществляется приводными тележками, размещенными на кольцевом монорельсе.This goal is achieved by the fact that shock-vibration tools are pivotally mounted on radial telescopic beams' mounted on a common trunnion in the center of the platform, with the possibility of independent rotation. The rotation is carried out by drive trolleys placed on an annular monorail.

Ударно-вибрационный инструмент снабжен напорным цилиндром. Подвижная часть телескопической балки снабжена дополнительным грузом, что увеличивает производительность устройства и исключает передачу ударно-вибрационных нагрузок.The shock-vibration tool is equipped with a pressure cylinder. The movable part of the telescopic beam is equipped with an additional load, which increases the productivity of the device and eliminates the transmission of shock-vibration loads.

На фиг. 1 изображено предлагаемое устройство, вид сбоку; на фиг. 2 и 3 расположение устройства в шахтной печи.In FIG. 1 shows the proposed device, side view; in FIG. 2 and 3, the location of the device in a shaft furnace.

Устройство состоит из подвесной платформы 1, под которой крепится центральная цапфа 2. Каждая радиальная телескопическая балка 3 прикрепляется шарнир но к напфе и жестко к приводной тележке 4, установленной на кольцевом монорельсе 5 под платформой.The device consists of a suspension platform 1, under which the central pin 2 is attached. Each radial telescopic beam 3 is hinged to the nappa and rigidly to the drive trolley 4 mounted on an annular monorail 5 under the platform.

Тележка имеет тормоз.The trolley has a brake.

На конце выдвижной части 6 телескопической балки, перемещаемой цилиндром 7, шарнирно на кронштейне 8 крепится головка 9. Внутри головки по направляющим перемещается ударно-вибрационный инструмент 10 с помощью цилиндра 10 напора 11, действующего по оси ударновибрационного инструмента. Осевой напор ударно-вибрационного инструмента повышает КПД ударной системы и, следовательно, эффективность устройства в це- 15 лом во время разрушения футеровки при той же установочной мощности инструмента*.At the end of the telescopic beam extendable part 6, which is moved by the cylinder 7, the head 9 is pivotally mounted on the bracket 8. Inside the head, the shock-vibration tool 10 moves along the guides with the help of the cylinder 10 of the pressure head 11, which acts along the axis of the shock-vibration tool. The axial pressure of the shock-vibration tool increases the efficiency of the shock system and, consequently, the efficiency of the device as a whole during the destruction of the lining at the same installation power of the tool *.

Головка с помощью цилиндра 12 может качаться в вертикальной плоскости для увеличения зоны разрушения футеровки. ²⁰Конструкция головки позволяет переставлять ее из положения I для разрушения футеровки стен в положение Ц для разрушения футеровки подины.The head using the cylinder 12 can swing in a vertical plane to increase the area of destruction of the lining. ²⁰ The design of the head allows you to move it from position I to destroy the lining of the walls in position C to destroy the lining of the hearth.

В этом случае ударно-вибрационный ²⁵инструмент может быть пригружен дополнительным грузом, установленным на выдвижную часть телескопической балки, что позволит увеличить производительность устройства, так как в разрушаемой футе- ³⁰ровке создается предварительное напряжение, а также уменьшить передачу ударно-вибрационных нагрузок на металлоконструкции устройства.In this case, the shock-vibration tool ²⁵ can be loaded with additional weight mounted on the telescopic beam extension, which will increase the productivity of the device, since prestressing is created in the destructible lining ³⁰ , and also reduce the transmission of shock-vibration loads to the device metal structures .

Платформа распирается в печи с по- ⁰³мощью телескопических штанг 13, на концах которых установлены шарнирно самоустанавливающиеся пяты 14. Устройство перемещается по высоте и подвешивается в печи на гибких связях (канатах, цепных лентах) 15.Platform bursting in the furnace ⁰³ po- power of telescopic rods 13, the ends of which are pivotally mounted heel 14. The aligning device is moved in height and suspended in the furnace on flexible connections (rope, chain belts) 15.

Управление механизмами устройства производится из кабин операторов 16, которые для лучшего обозрения места работы подвешены к радиальным балкам с ⁴⁵помощью амортизирующйх подвесок 17. В кабинах создается повышенное давление воздуха для исключения попадания пыли и установлены кондиционеры для создания благоприятных климатических условий. На кабинах установлены светильники 18, обеспечивающие достаточную освещенность рабочей зоны.The device’s mechanisms are controlled from operator’s cabins 16, which are hung from radial beams with ⁴⁵ shock absorbing suspensions 17 for better viewing of work places. In the cabs, increased air pressure is created to prevent dust and air conditioners are installed to create favorable climatic conditions. Lamps 18 are installed on the cabins, providing sufficient illumination of the working area.

Платформа устройства снабжена выдвиж-.^ ными лучами 19, перекрыв которые инвенчтарными щитами 20, можно выполнять демонтажные работы и монтажные операции во время ремонта печи.The platform of the device is equipped with retractable beams 19, which are blocked by inventory shields 20, it is possible to perform dismantling and installation operations during the repair of the furnace.

Разрушение футеровки производят сверху вниз.The destruction of the lining is produced from top to bottom.

Устройство вводят в печь через колошник на канатах с помощью лебедок.The device is introduced into the furnace through the top on the ropes using winches.

Этап I (см. фиг. 2). Выдвигают лучи 19, перекрывают платформу щитами 20 и производят демонтаж купольных плит 21 и сегментов 22 колошниковой зашиты (положение I Затем устройство опускается на необходимый уровень, подвешивается на аварийных тросах или металлических лентах, распирается в печи штангами 13. Балки 3 с помощью тележек 4 подвсдят к разрушаемому участку, головки 9 ставятся в положение I и производится разрушение футеровки шахты 23 печи. По мере разрушения устройство опускается (положение Ц ).Stage I (see Fig. 2). They extend the beams 19, cover the platform with shields 20 and dismantle the dome plates 21 and segments 22 of the top protection (position I Then the device lowers to the required level, is suspended on emergency ropes or metal bands, bursts into the furnace with rods 13. The beams 3 with the help of carts 4 are suspended to the area to be destroyed, the heads 9 are placed in position I and the lining of the shaft of the furnace 23 is destroyed. As the destruction occurs, the device lowers (position C).

После разрушения футеровки шахты производится с платформы демонтаж холодильника 24 шахты печи и холодильника 25 заплечиков (положение П).After the destruction of the lining of the mine, the refrigerator 24 of the furnace shaft and the refrigerator of the 25 shoulders are dismantled from the platform from the platform (position P).

Этап |1 .(см. фиг. 3). С платфюрмы производится монтаж холодильников заплечиков и шахты (положение W ). Затем разрушается футеровка горна 26 (положение Х_), головка переводится в положение И и разрушается футеровка ле^. щади 27 доменной печи (положение W).Stage | 1. (See. Fig. 3). From the platform, refrigerators for the shoulders and shaft are mounted (position W). Then the lining of the furnace 26 (position X_) is destroyed, the head is transferred to the position And, and the lining of le ^ is destroyed. flats 27 of the blast furnace (position W).

По окончании этой работы демонтируются и убираются из печи радиальные балки, телескопические штанги, приводные тележки, а с платформы в последующем производится кладка футеровки горна 26.At the end of this work, radial beams, telescopic rods, drive trolleys are dismantled and removed from the furnace, and then the lining of the furnace 26 is subsequently laid from the platform.

Claims

The invention relates to metallurgy. The closest to the described invention to the technical essence and. Achieved results is a device for destruction of the lining of shaft furnaces, which contains a suspended platform with sliding stops, under which a cantilever telescopic beam with a drive is mounted on a trunnion, with vibration-impact tool i located on its movable part. The drawbacks of the device are low productivity, impossibility of destruction of the hearth of the furnace, larger dimensions. The purpose of the invention is to increase the performance of the device during the destruction of the lining; reducing the size of the device; the possibility of lining destruction is given to a shaft furnace; improving the performance of the device; the possibility of using the device platform for dismantling and installation work during the repair of the furnace. The goal is achieved by the fact that the shock vibration tools are pivotally mounted on radial telescopic beams fixed on a common trunnion in the center of the platform, with the possibility of independent rotation. The turn is carried out by driving carriages placed on an annular monorail. The vibrating tool is equipped with a pressure cylinder. The movable part of the telescopic beam is provided with an additional load, which increases the performance of the device and eliminates the transmission of shock-vibration loads. FIG. 1 shows the proposed device, side view; in fig. 2 and 3 the location of the device in the shaft furnace. The device consists of a suspended ppvt form 1, under which is mounted a central pin

2. Each radial telescopic beam 3 is attached by a hinge to the napra and rigidly to a tepeck 4 mounted on an annular monorail 5 under the platform. The cart has a brake. At the end of the sliding part 6 of the telescopic beam moved by the cylinder 7, the head 9 is attached to the bracket 8 on the bracket. Inside the head, the shock and vibration tool Yu moves along the guides with the help of a pressure cylinder 11 acting along the axis of the impact vibration tool. The axial head of the shock vibration tool increases the efficiency of the shock system and, consequently, the efficiency of the device as a whole during the destruction of the lining with the same installation power, the tool head with cylinder 12 can be rotated in a vertical plane to increase the zone of destruction of the lining. The design of the head allows it to be rearranged from position I to destroy the wall lining to position I to destroy the bottom lining. In this case, the shock-vibration tool can be loaded with additional weight mounted on the movable part of the telescopic beam, which will increase the productivity of the device, since the prestressing is created in the lining to be destroyed, as well as to reduce the transmission of the impact of vibration on the device's metalwork. The platform is distributed in the furnace by means of telescopic rods 13, at the ends of which pivotally self-aligning pins 14 are installed. The device is moved to its height and suspended in the furnace on flexible connections (ropes, chains) 15. The machinery is controlled from operator cabs 16, which, for a better overview, are suspended from radial beams with shock absorbers 17. Air boosts the cabins to increase air pressure to prevent dust from entering and air conditioning is installed to create favorable climatic conditions. The cabs are equipped with lamps 18, which provide sufficient illumination of the working area. The platform of the device is equipped with extension beams 19, which are blocked by injection panels 20, and dismantling and installation operations can be performed during the repair of the furnace. 7,664 The destruction of the lining is made from top to bottom. The device is introduced into the furnace through the top of the ropes using winches. Stage 1 (see fig. 2). The beams 19 are extended, the platform is covered with shields 20 and the dismounting of the control plates 21 and top protection segments 22 (position I) is made. The device is then lowered to the required level, suspended on emergency cables or metal tapes, dispersed in the furnace by bars 13. Beams 3 s with the help of carriages 4, they are brought to the destructible area, the heads 9 are set to position I and the lining of the furnace shaft 23 is destroyed. As the device collapses, position 1) is lowered. After the destruction of the lining of the shaft is made from the platform, dismantling the refrigerator 24 of the furnace shaft and the refrigerator 25 shoulders (position GO). Stage and. Cm. FIG. 3). The platform is installing refrigerators for shoulders and a shaft (position V). Then the liner of the hearth 26 (position V) is destroyed, the head is shifted to the position AND, and the lining is destroyed. spade 27 blast furnace (position LC). At the end of this work, radial beams, telescopic rods of driving carts are removed and removed from the furnace, and the liner of the hearth is subsequently laid from the platform 26. Invention formula. A device for breaking the lining of shaft furnaces, containing a suspended platform with sliding lugs, under which a control telescopic beam with a drive is fixed to a trunnion, and the shock-vibrating tool is located on its movable part, characterized in that the device is equipped with an annular monorail with trolleys on which the telescopic beams are rigidly fixed with one end, and with the other end they are pivotally connected to the trunnion, with the shock-vibration tools attached oosno with drives. Sources of information taken into account in the examination 1. US Patent No. 3370888, cl. 299-70, 1968 (prototype f V M

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