SU569604A1

SU569604A1 - Device for conveying ladle to vacuum chamber

Info

Publication number: SU569604A1
Application number: SU7602342594A
Authority: SU
Inventors: Павел Никодимович Атаманенко; Юрий Константинович Щеклеин; Валериан Павлович Путинцев; Владимир Николаевич Громаковский; Юрий Владимирович Лапинер
Original assignee: Предприятие П/Я А-1950
Priority date: 1976-04-02
Filing date: 1976-04-02
Publication date: 1977-08-25

Description

(54) УСТГОЙСТВО ДЛЯ ТРАНСПОРТйЮВКИ КОВША К ВАКУУМ-КАМЕРЕ(54) CONSTRUCTION FOR BUCKET TRANSPORTATION TO VACUUM CAMERA

Изобретение относитс к металлургии и может использоватьс при коистр)гировании устройств дл внепечного вакуумировашс сгапи.The invention relates to metallurgy and can be used in the co-operation of devices for out-of-furnace vacuum coils.

Известна установка даркул ционного вакуумировани стали, состо ща из вакуум-камеры н устройства дл транспортировки ксшош к вакуумкамере , х;одержащего направл ющие колсигаы, два рабочих гидроцилиндра подьеАга и опускани ковша с жидким металлом, соединенных с гидроаппаратурой уп1пвлеии и 1)езе(жуврО1у тг;щро сос1юй The installation of a dark-vacuum steel vacuuming is known, consisting of a vacuum chamber and a device for transporting the vacuum tank to the vacuum chamber, x; carrying guide rails, two working pods of hydraulic cylinders, and lowering the ladle with liquid metal connected to the hydraulic control equipment and 1) jugroma 1) ; schro sosyuyuy

установки трубо р« одами|1}«installation pipe p "one | 1}"

Однако в ижестис усгоис ке йрк ао)1;ьеме иHowever, in Izhestis usgois ke yrk ao) 1; ome and

опускаюш ковша с жидким метал}ю; | рабоэдв ш гндроцвлишфами в процессе вакуумировани во мЬжны аварийное падение ковша из-з(роса давлещ в напорной магистрали, соединеинЫ с нюкиими полост ми рабофх гищюцилиндров, вследствие разрушени трубопроводов и их соединений и отказ гидроаппаратуры, запиракнцей нижние полости рабочих гидроцилиндров. №.дежность и долговечность гидросистемы зависит от большого вдела трудно учитываемых факторов (величины и характера действующих напр же шй, вызванных неточност ми монтажа, состо нием структуры материала, дефектов внутренней и внешней поверхностей трубопроводов , величины ударного давлени при гидрОударе ), которые не исключают безопасной работы.lowering the bucket with liquid metal} th; | In the process of evacuating an emergency bucket fall due to vacuuming in the process of vacuuming (dew pressure in the pressure line, connected to the cavity of the working cylinder, due to the destruction of pipelines and their connections and the failure of hydraulic equipment, locking the idle working hydraulic circuits). the hydraulic system depends on a large investment of factors that are difficult to take into account (the size and nature of the operating forces caused by inaccuracies of the installation, the state of the structure of the material, internal and external defects piping surfaces, impact pressure values at hydrostatic pressure), which do not exclude safe operation.

Внезапный отказ гидроаппаратуры, напртмер предохранительного подаорного клапана с переливным золотником, возможен также по причине загр знени рабочей жидкости, что приводит к заеданию подаижнь х частей гнщ оаппаратов. Наличие в жидкосга нерастворенного воздуха приводит к шчеткому срабатьшаш1Ю гидроаппаратуры, а попомки пружины предрхра1щтельного клапана привод т к H6f :адленж му открывашоо его переливного золотника .A sudden failure of the hydraulic equipment, such as a safety feed valve with overflow valve, is also possible due to the contamination of the working fluid, which leads to jamming of the bottom parts of the apparatuses. The presence of undissolved air in the fluid leads to hydraulic equipment, and the help of the spring of the pre-valve valve results in H6f: a valve opening of its overflow valve.

Цель изобрет ни -исключить аварийное падение ковига с жидким металлом при подъеме а опускании.The purpose of the invention is neither to eliminate the emergency fall of the covig with the liquid metal when lifting and lowering.

Дл этого в п{№длагаемом устройстве направл к цие колошйл вьшолнены в виде плунжеров и заключены в неподвижно закрепленные блокирующие гидроцилиндры, попарно соединенные своими полост ми через управл емый обратный клапан с резервуаром, а полость управлени клапана соединена с нижними полост ми рабочих гидроцилиндров с возможностью сброса давлени управлени .To do this, in the subclause of the proposed device, the direction of the flow is made in the form of plungers and enclosed in the fixedly fixed locking hydraulic cylinders, connected in pairs through their cavities through a controlled check valve to the reservoir, and the control cavity of the valve is connected to the lower cavities of the working hydraulic cylinders with possibility pressure relief control.

Claims

The drawing shows the proposed device. It has a bucket 1, resting on support cola 2, interacting with support crossheads 3 with guide columns 4 made In the form of plungers and enclosed in fixedly mounted blocking hydraulic cylinders 5 connected in pairs through their cavities through a controlled non-return valve 6 with a reservoir; two working cylinders 8 connected by lower cavities with a control cavity of a check valve of blocking cylinders; adjustable microscopes9, connecting the reservoir and the controlled check valve; a manually controlled spool 10 connecting the control valve of the check valve through a normally open valve 11 with a drain; controlled back pressure valve 12, connections of the lower cavities of the working hydraulic heads with the pressure line and the safety retaining valve 13; valve 14 communicating the upper cavities of the workers of the hydraulic rams with the control cavity of the check valve; a hand pump unit 15 connected to the control cavities of the check valves; shdron pump installation and distribution hydraulic equipment (conventionally not shown in the drawing); piping 16. During operation of the installation, the working hydraulic chambers 8 interact through the support arms of the BF to the saddle ring: 2. raise the bucket 1 with the liquid metal, while the lower cavities of the working hydraulic cylinders communicate through the controlled check valve 12 with your own trap and through the open branch 11 - from a control cavity of a controlled check valve b, which is opened; The liquid e of the reservoir is guided through the normally open shkhkhel 9 under hydrostatic pressure into the cavities of the blocking hydraulic cylinders S and fills the freeing volume, which increases due to the movement of the shuntle knoll 4, fixed to the support crossheads, while the manually controlled spool 10 covers the control cavity check valve b with drain. In the case of full pressure in the pressure line of the lower cavities of working hydraulic cylinders (due to the destruction of pipelines and their connections or hydraulic equipment failure, or improper operation of the operating personnel), the controlled check valve 6 closes the fluid in the blocked hydraulic cylinders 5, thereby automatically excluding the drop of KOBuia with liquid Metals. In the event that the residual pressure in the pressure line of the lower cavities of the working cylinders is maintained, which prevents the valve b from locking up (in case of damage with limited oil leakage), locking the bucket by depressing the control of the valve b by switching the manual spool 10 to drain. For a smooth lowering of the locked bucket With the liquid metal, the valve 11 is closed and, applying pressure control by the manual python pump 15 to valves b and 12, by operating the throttle 9, the liquid is withdrawn. From the blocking hydraulic cylinders with the weight of the bucket and moving parts to the reserve p. The invention of the device for transporting the bucket to the vacuum chamber, containing guide columns with hydraulic cylinders for raising and lowering the bucket, connected to the control hydraulic equipment and the hydraulic pump installation reservoir with pipelines, in order to prevent the accidental fall of the fluid bucket metal n {Zh rise and lower, the guide columns are made in the form of Ishunger enclosed in fixedly fixed blocking cylinders connected in pairs by their polo & l through controlled return a valve with a reservoir, and the valve control chamber is connected to the lower cavities of the "NHX hydraulic chambers" with pressure relief function., Sources of information, take into account when drawing: 1. A. N. Morozov; Insertion vacuuming stash. M., Mvgalurti 1975, p. 143, 15, 158.