SU924482A1

SU924482A1 - Rotating apparatus for heat treatment of loose materials

Info

Publication number: SU924482A1
Application number: SU802981549A
Authority: SU
Inventors: Эдуард Львович Ягуд
Priority date: 1980-09-05
Filing date: 1980-09-05
Publication date: 1982-04-30

Description

Изобретение относитс к оборудованию дл термообра(отки матёригша во вращающихс аппаратах,преимувлественно холодильниках , используемых в цветной металлургии и в производстве стройматериалов.The invention relates to equipment for thermal imaging (material casting in rotating apparatus, mainly refrigerators used in non-ferrous metallurgy and in the production of building materials.

Известен вращающийс аппарат, внутреин поверхность корпуса которого снабжена метгшлическимн прОфильными пересыпными устройстйамн, анг нутыми по длине печи . Внутри пересыпных устройств циркулирует, охлаждающий газ, поступивший в полость через соответствующие отверсти в корпусе печи. Через отверсти в торцах пересыпных устройств иаигрет ый газ поступает внутрь печи. и контактирует с наход щимс там материалом Ц .A rotating apparatus is known, the inner surface of the casing of which is provided with a meter with a profile pouring device, angled along the length of the furnace. Inside the pouring device circulates, the cooling gas that entered the cavity through the corresponding holes in the furnace body. Through the holes in the ends of the pouring devices, the i-gas enters the furnace. and is in contact with material C there.

Недостатком конструкции вл етс наличие отверстий, соедин ющих внутреннюю полость пересыпных устройств с внутренней полостью печи, вследствие чего охлаждение пересыпающих устройств возможно только газообразным -охлаждающим агентом.A disadvantage of the design is the presence of holes connecting the internal cavity of the pouring devices with the internal cavity of the furnace, as a result of which the cooling of the pouring devices is possible only with a gaseous cooling agent.

Изветсно устройство дл охлазрсдег ни обожженного материала, например цемента, выполненное в виде вращающегос бара«5ана, на внутренней поверхности которого установленны. съемные пересыпные блоки, во внутренней полости блоков установлены охлаждающие элементы в виде трубок, по которым протекает охлаждающа вода, в корпусе барабана выполнены отверсти /дл ввода трубок во внутреннюю полость блоков 2.There is a device for chilling a burnt material, for example cement, made in the form of a rotating bar, on the inner surface of which are installed. removable pouring blocks; cooling elements in the form of tubes, through which cooling water flows, are installed in the internal cavity of the blocks; openings are made in the drum casing to enter the tubes into the internal cavity of blocks 2.

Недостатком устройства вл етс The disadvantage of the device is

10 отсутствие непосредственного охлаждени водой стенок пересыпных блоков, снижает эффективность охлаждени . ,10, the absence of direct cooling by water of the walls of the pouring blocks reduces the cooling efficiency. ,

Наиболее близким по достигаемому The closest attainable

15 эффекту к предлагаемому техническому решению вл етс вращающийс аппарат , снабженный устройством дл вод ного орошени наружной поверхности и полыми под1«мно-пересыпнью.и 15, the effect to the proposed technical solution is a rotating apparatus, equipped with a device for irrigating the outer surface and hollow underfill.

20 устройствами е виде швеллеров на внутренней поверхности, во внутреннюю полость которых подают охлаждающую воду.20 devices are in the form of channels on the inner surface, into the internal cavity of which cooling water is supplied.

Дл отвода обработанной воды из , To drain treated water from,

Claims

25 of the cavity of the lifting and pouring device in the housing of the apparatus are made holes, while on the outer surface of the housing there is a fixed casing with a device for irrigating the outer surface of the housing with cooling liquid and branch pipes for discharging waste water and steam 3 from the housing. devices that allow water to remain in any position (around the entire perimeter), which leads to a decrease in cooling efficiency, since during rotation Abana water enters their internal cavity while they are in the lower position, and is completely poured out in 1/3 of a turn. The purpose of the invention is to increase the intensity of heat transfer due to the constant cooling of the pouring devices along the entire perimeter of the apparatus. This goal is achieved by the fact that in the immediate apparatus, containing a body with pouring devices installed on its inner surface, with cavities for coolant and openings for its insertion in the cavity, and also a fixed casing with a device for irrigating the outer surface of the body each liquid filling device is equipped with a baffle with holes installed between the holes for inlet and outlet of the cooling fluid and. In addition, each pouring device is equipped with nozzles, connecting each other to areas of the cavity separated by a septum. FIG. 1 shows the proposed apparatus, a longitudinal section; in FIG. 2, section A-A in FIG. one; in fig. 3 section bb in fig. 2 (in the placer device, which is in the upper position). The rotating apparatus for heat treatment of bulk materials includes a housing 1 with pouring devices installed on its inner surface.

2. In the housing there are holes 3 and 4 for supplying and discharging coolant, which is filled with cavities of the pouring devices, divided by partitions 5 into sections 6-8, connected in series with each other by nozzles 9. In partitions there are holes 10 for free flow of liquid inside the cavity. To load the material into the apparatus, it is intended to load the chute 11, for unloading - the discharge head 12. The stationary casing 13 is equipped with a trough-shaped chute 14 for irrigation of the apparatus casing, branch pipe 15 from the waste water casing and branch pipe 16 for steam removal. The device works as follows. Inside the rotating apparatus, the processed material is loaded along the chute 11, which after heat treatment is discharged from the opposite end through the discharge head 12. Hollow pouring devices 2 are installed on the inner surface of the drum housing 1 to increase the heat exchange surface, into the internal cavity of which through holes 3 devices 2 in the upper position) coolant is supplied from the chute 14, which fills the cavity through the openings 10. The excess fluid then flows out Through holes 4. With further rotation, the liquid supply stops, and portions of cavity 6 and i 8 are gradually emptied through the corresponding holes 3 and 4. The waste liquid from the casing 13 is discharged. through nozzle 15. By the time the device 2 is in the lower position and contact with the material being processed, only section 7 is filled with liquid, and the height of the liquid layer corresponds to the lower edges of the holes 10 in the partitions 5. As the drum 8 continues to rotate by the time the devices 2 come out of contact with the material , Ie Immediately before the arrival of a new portion of the coolant, the cavity of the devices 2 through the openings 10, 3 and 4 is completely emptied (Fig. 1 and 2). The newly supplied portion of the coolant displaces pairs 7 formed at part 7 through the nozzles 9 into adjacent areas B and 8, from where it is freely led out through the openings 3 and 4 into the housing 13 and further through the nozzle 16. The proposed design allows the cooling fluid to remain inside the cavity and during the period of contact of the filling devices with the cooling material. In this case, the nozzles connecting the portions of the cavity serve to prevent the formation of a steam interlayer in the central part of the cavity, which prevents the filling of this part of the cavity in its upper position with cooling liquid. in the housing of the apparatus in a fixed casing. Claim 1. Rotating apparatus for heat treatment of bulk material, comprising a housing with a pouring surface mounted on its inner surface