SU947244A1

SU947244A1 - Rotary feeder of apparatus working under pressure

Info

Publication number: SU947244A1
Application number: SU782563683A
Authority: SU
Inventors: Борис Петрович Кулишенко; Леонид Николаевич Петушинский; Валерий Иванович Бойко
Original assignee: Предприятие П/Я Р-6729
Priority date: 1978-01-05
Filing date: 1978-01-05
Publication date: 1982-07-30

Description

Изобретение относитс к конструкции устройств дл загрузки и выгрузки твердых сыпучих материалов и может оыть использовано в строительной, гидролизной и целлюлозно-бумажной промышл нност х дл непрерывной загрузки сырь в варочные аппараты, |работакйдие под избыточным давлением .The invention relates to the design of devices for loading and unloading solid bulk materials and can be used in the construction, hydrolysis and pulp and paper industries for the continuous loading of raw materials into cooking apparatus, under pressure.

Известен питатель, в котором уплотнение ротора в корпусе решено по принципу лабиринтного уплотнени . Известный питатель состоит из корпуса с загрузочным и разгрузочным отверстием и штуцерами дл отвода протечек среды из аппарата, установленный на валу в корпусе ротор с радиальными лопаст ми, образующими с боковыми стенками ротора карманы, корпус снабжен неподвижными дисками с выступами, образующими лабиринтные уплотнени Cl.A feeder is known in which the seal of the rotor in the housing is decided by the principle of a labyrinth seal. The known feeder consists of a housing with a loading and unloading opening and fittings for removal of fluid leaks from the apparatus, mounted on a shaft in the housing is a rotor with radial blades forming pockets with the side walls of the rotor, the housing is equipped with fixed disks with projections forming labyrinth seals Cl.

В известном питателе отсутствуют трение и износ, однако существенными его недостатками вл ютс возможность значительных проточек (потерь) среды из уплотн емого аппарата во многих случа х это - пар с 200°С и с давлением 12-16 кгс/см, через лабиринтные уплотнени питател .In the well-known feeder, there is no friction and wear, but its significant drawbacks are the possibility of significant fluids (loss) of the medium from the compacted apparatus in many cases it is steam with 200 ° C and with a pressure of 12-16 kgf / cm, through the labyrinth seals of the feeder .

что требует дополнительного расхода энергии, а также относительно сложное конструктивное оформление элементов лабиринтного уплотнени , затрудн ющее изготовление питател .which requires additional energy consumption, as well as the relatively complex structural design of the elements of the labyrinth seal, making it difficult to manufacture the feeder.

Цель изобретени - повышение надежности в работе.The purpose of the invention is to increase reliability in operation.

Поставленна цель достигаетс тем, что питатель снабжен системой пода10 чи воды в лабиринтные уплотнени ротора , выполненной в виде емкости дл воды, расположенной над питателем, имекадей трубопроводы, сообщающие ее с лабиринтом уплотнений и с разгру15 зочным отверстием корпуса питател , при этом выступы дисков параллельны между собой и расположены перпендикул рно геометрической оси, соедин ющей загрузочное и разгрузочное The goal is achieved by the fact that the feeder is equipped with a system for supplying water to the rotor labyrinth seals, made in the form of a water tank located above the feeder, has pipelines that connect it with the labyrinth of the seals and with the discharge hole of the feeder housing and perpendicular to the geometric axis connecting the loading and unloading

20 отверсти корпуса питател , а поверхности торцовых стенок ротора со стороны неподвижных дисков выполнены плоскими.20 holes of the feeder housing, and the surfaces of the end walls of the rotor from the side of the fixed disks are made flat.

На фиг. 1 показан питатель, про25 дольный разрез, на фиг.2 - разрез А-А на фиг.1; на фиг. 3 - разрез Б-Б на.фиг.1, на фиг. 4 - узел 1 на фиг.1. .FIG. 1 shows a feeder, a longitudinal section, in FIG. 2, section A-A in FIG. 1; in fig. 3 is a section bB of FIG. 1, FIG. 4 - node 1 in figure 1. .

Питатель состоит из корпуса 1 с The feeder consists of a housing 1 with

Claims

30 with a loading opening 2 and a loading opening - 3. Inside the housing 1 on the shaft 4 there is a rotor 5 with radial blades b, which together with its side walls 7 form peripherally arranged pipes 8.. In case 1, on both sides of potopa 5, fixed disks 9 are installed parallel to its side walls 7, hermetically sealed with housing 1 with gland seals 10 and shaft 4 with gland seals 11. Longitudinal longitudinal parallel walls are made on the fixed disks 9 on the side of the rotor side walls the protrusions 12 to each other (Figs. 3 and 4jlo) labyrinth with side walls 7. The surfaces of the side walls 7 of the rotor 5, facing the fixed disks 9, are made flat and smooth, without projections. The projections 12 and the surface of the side walls 7 of the rotor 5 a gap of 0.1–0.25 mm is established. On the side of the filling opening 2 of the housing 1 there are cavities 13 and channels 14 for draining the boreholes from the apparatus through the maze. In the housing 1, on two sides, the loading opening 2 has of the apparatus through the pockets 8 r of the torus 5. A water tank 16 is installed above the feeder with piping 17 that connects it with the Labyrinth of the rotor end seal 5 and pipe 18 telling the tank 16 to the discharge opening 3 of the housing 1 The rotary feeder works as follows . The loading material through the loading opening 2 in the housing 1 is poured into the pockets 8 of the rotor 5, the Trans is ported when the rotor 5 is rotated to the discharge window 3, and under the action of gravity is poured into the cooking appliance. Steam (or any other medium, such as gas) in the apparatus under the action of overpressure (through the discharge opening 3) tends to a space with less pressure, i.e. to the loading opening 2 of the housing 1, the passage through the labyrinth seal between the side wall 7 of the rotor 5 and the fixed disk 9. The pressure in the vessel 16 connected via pipe 18 and the opening 3 of the housing 1 to the loading device is equalized with the pressure in the device. The water in the tank 16, due to the hydrostatic pressure created by the fact that the tank 16 is installed above the feeder, enters the maze and fills the cells of the maze, then moves to the cavity 13 of the housing 1, and thereby prevents the flow of fluid from apparatus through the maze. The steam flowing through the maze through the cavities 13 and the channels 14 is removed for recycling. That part of the vapor (which flows through the pockets .8 of the rotor 5) is disposed of through the fittings 15. Thus, the proposed feeder reduces leakage of the medium from the compacted apparatus, is much simpler and structurally designed, which leads to a decrease in unproductive loss of the medium from the apparatus, for example steam with T-200C, and as a result, to reduce energy consumption, as well as to reduce the cost of manufacturing the feeder and to stabilize the technological process in the loading apparatus, which gives th effect in the implementation of continuous cooking processes. Claims of the Invention Rotary feeder for loading an apparatus operating under pressure, including a chassis with loading and unloading openings and fittings for removing media leaks from the device, mounted on a shaft in the housing a rotor with radial blades forming pockets with end walls of the rotor, fixed disks with projections forming labyrinth seals with rotor end walls, characterized in that, in order to increase operational reliability, it is equipped with a water supply system to the rotor labyrinth seals, in the form of a water tank located above the feeder, having piping that connects it to the labyrinth of seals and to the unloading / opening of the feeder housing, while the protrusions of the disks are parallel to each other and are perpendicular to the geometric axis connecting the feed and discharge openings of the feeder housing, and the surfaces of the end walls of the rotor from the side of the fixed disks are made flat. Sources of information taken into account in the examination 1. USSR author's certificate 604889, cl. D 21 C 7/06, 1976.