SU735281A1

SU735281A1 - Scrubber

Info

Publication number: SU735281A1
Application number: SU762405747A
Authority: SU
Inventors: Анатолий Алексеевич Свидовский; Виктор Андреевич Ветер; Курт Альбертович Пехингер
Original assignee: За витель
Priority date: 1976-09-13
Filing date: 1976-09-13
Publication date: 1980-05-25

Description

Изобретение относится к технике мокрой очистки газов и может найти широкое применение в различных отраслях промышленности, где требуется очистка газов от взвешенных приме- 5 сей.The invention relates to techniques for wet gas purification and can be widely used in various industries where gas purification from suspended admixtures is required.

Известно устройство для мокрой очистки газа, включающее корпус с входным патрубком, внутри которого установлены два ряда уголков, Ю первый ряд которых закреплен неподвижно, а второй ряд может приближаться к первому или удаляться от него с помощью червячной передачи и зубчатых реек, соединенных с валами, 15 к которым жестко прикреплены уголки второго подвижного ряда [1].A device for wet gas cleaning, including a housing with an inlet pipe, inside which two rows of corners are installed, the first row of which is fixedly mounted, and the second row can approach the first or move away from it using a worm gear and gear racks connected to the shafts, 15 to which the corners of the second movable row are rigidly attached [1].

Это. устройство имеет значительное аэродинамическое сопротивление, а наличие червяков, шестерен и зубча-' 20 тых реек усложняет конструкцию.It. the device has significant aerodynamic drag, and the presence of worms, gears, and cogged rails complicates the design.

Наиболее близок к предлагаемому изобретению по технической сущности и достигаемому результату скруббер, включающий корпус с входным патрубком?5 внутри которого установлены форсунки и решетка, размещенная в корпусе. Решетка выполнена из прутков [2].Closest to the proposed invention in terms of technical nature and the achieved result is a scrubber, comprising a housing with an inlet pipe No. 5 inside of which nozzles and a grill are installed located in the housing. The lattice is made of rods [2].

Недостатком такого скруббера является невысокая эффективность пыле- 30 улавливания, так как конструкция решетки не позволяет закрутить газожидкостный поток.The disadvantage of such a scrubber is the low efficiency of dust-capture, since the design of the lattice does not allow to spin the gas-liquid flow.

С целью повышения эффективности пылеулавливания за счет закручивания газового потока, в предлагаемом скруббере решетка выполнена из прямоугольных пластин, жестко закрепленных к корпусу решетки под углом 15°, и установлена с возможностью поворота относительно одного ее конца на угол 30° .In order to increase the efficiency of dust collection due to the swirling of the gas stream, in the proposed scrubber, the grill is made of rectangular plates rigidly fixed to the grill body at an angle of 15 °, and is installed with the possibility of rotation relative to one of its ends by an angle of 30 °.

На фйг.1 изображен скруббер, продольный разрез ; на фиг.2 - разрез А-А на фиг.1; на фиг.З - разрез Б-Б на фиг.1.Figure 1 shows a scrubber, a longitudinal section; figure 2 is a section aa in figure 1; in Fig.Z - section bB in Fig.1.

Скруббер включает корпус 1 с входным патрубком 2, в котором установлены форсунки 3 и решетка 4, разме-щенная в корпусе 5. Решетка выполнена из прямоугольных пластин 6, установленных вертикально и жестко закрепленных к корпусу решетки под углом 15° . Решетка установлена с возможностью поворота относительно одного ее конца на угол 30 . В верхней части корпуса установлен каплеуловитель 7 центробежного типа, имеющий трубу 8 слива^:уловленной ' жидкости, и выходной патрубок.9.The scrubber includes a housing 1 with an inlet pipe 2 in which nozzles 3 and a grill 4 are mounted in the housing 5. The grill is made of rectangular plates 6 mounted vertically and rigidly fixed to the grill housing at an angle of 15 °. The lattice is mounted with the possibility of rotation relative to one end at an angle of 30. A centrifugal droplet eliminator 7 is installed in the upper part of the housing, having a drain pipe 8 ^: trapped fluid and an outlet pipe. 9.

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Скруббер работает следующим образом.Scrubber works as follows.

С помощью фиксатора решетка 4 устанавливается на угол, определенный режимом работы скруббера, в зависимости от выбранной производительности и дисперсности пыли. Неочищенцый газ по входному^ патрубку 2 поступает на решетку 4, на которой закручивается и под действием инерционных сил крупные взвешенные частицы задерживаются на смоченной поверхности пластин решетки. После решетки газ, еще содержащий мелкие взвешенные частицы, проходит через исходящие с каждой пластины решетки водяные завесы, направленные под углом к потоку газа.Using the clamp, the grill 4 is installed at an angle determined by the mode of operation of the scrubber, depending on the selected performance and dispersion of dust. The crude gas through the inlet pipe 2 enters the grate 4, on which large suspended particles are twisted and under the action of inertial forces are retained on the wetted surface of the grating plates. After the grate, gas, still containing small suspended particles, passes through the water curtains emanating from each grating plate, directed at an angle to the gas flow.

Закрученный в нижней части скруббера большой окружной скоростью газовый поток, увлекая часть вода· и орошая внутреннюю поверхность корпуса 1 скруббера, движется по ней спирально вверх. При этом пленка, воды не срывается даже при повышенных расходах газа, что даёт возможность Уменьшить высоту скруббера.A gas flow swirled in the lower part of the scrubber at a high peripheral speed, entraining part of the water · and irrigating the inner surface of the scrubber body 1, moves spirally upward along it. In this case, the film of water does not break down even at increased gas flow rates, which makes it possible to reduce the height of the scrubber.

Под действием центробежных сил, возникающих в результате вращения газоводяного потока с большой окружной скоростью, капли вода отбрасываются на внутреннюю поверхность каплеуловителя 7, где газ освобождается от вода и через выходной патрубок 9 удаляется из скруббера. Вода, уловленная каплеуловителем, стекает'в нижнюю часть и далее по трубе 8 отводится из скруббера.Under the action of centrifugal forces resulting from the rotation of the gas-water stream with a high peripheral speed, water droplets are thrown onto the inner surface of the droplet eliminator 7, where the gas is freed from the water and is removed from the scrubber through the outlet pipe 9. Water trapped by the droplet eliminator flows into the lower part and then is discharged from the scrubber through pipe 8.

Для регулирования объема очищаемого газ решетка 4 поворачивается 'на определенный угол, увеличивая или уменьшая угол наклона пластин ^решетки по отношению к направлению движения потока газа, тем самым увеличивая или уменьшая аэродинамическое сопротивление скруббера. Таким образом, достигается плавное регулирование объема газа с сохранением высокой эффективности.To regulate the volume of gas to be cleaned, the grate 4 is rotated by a certain angle, increasing or decreasing the angle of inclination of the plates ^ of the grating with respect to the direction of gas flow, thereby increasing or decreasing the aerodynamic drag of the scrubber. Thus, a smooth regulation of the gas volume is achieved while maintaining high efficiency.

При улавливании мелкодисперсных частиц ранетку необходимо повернуть на больший угол для создания макси.мальных инерционных сил. Наличие во входном патрубке поворотной решетки 4, а на выходе каплеуловителя позволило увеличить скорость в поперечном сечении скруббера до 12-13 м/с. Это, в свою очередь, дало увеличение производительности скруббера в 2,53 раза, при более высокой эффектив-. ности пылеулавливания и снижения габаритов и металлоемкости.When catching fine particles, the webbing must be rotated at a larger angle to create maximum inertial forces. The presence of a rotary grating 4 in the inlet pipe, and at the outlet of the droplet eliminator, it was possible to increase the speed in the cross section of the scrubber to 12-13 m / s. This, in turn, gave an increase in scrubber productivity by 2.53 times, with a higher efficiency. dust removal and reduction in size and metal consumption.

Claims

The invention relates to a technique for the wet cleaning of gases and may find wide application in various fields of industry where gas purification from suspended impurities is required. A device for wet gas cleaning is known, comprising a housing with an inlet nozzle, inside which two rows of corners are installed, the first row of which is fixed and the second row can be brought closer to or away from the first by worm gear and toothed rails. connected to the shafts to which the corners of the second movable row 1 are rigidly attached. This is. the device has significantly aerodynamic drag, and the presence of screws, gears and toothed racks complicates the design. Closest to the proposed invention is the technical essence and the achieved result of a scrubber, including a housing with an inlet nozzle inside which the nozzles are installed and a grating placed in the housing. The grating is made of rods 2. The disadvantage of this scrubber is the low efficiency of the dust trap because Do not spin the gas-liquid flow. In order to increase efficiency. dust collection due to the twisting of the gas flow, in the proposed scrubber, the grill is made of rectangular plates rigidly fixed to the grill body at an angle of 15, and is installed rotatably relative to one end of it by an angle of 30 .i Figure 1 shows a scrubber, longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1. The scrubber includes a housing 1 with an inlet nozzle 2 in which nozzles 3 are installed and a grating 4 housed in the housing 5. The grating is made of rectangular plates 6 installed vertically and rigidly fixed to the grating body at an angle of 15. The grating is installed with the possibility of rotation relative to one its end angle is 30. A droplet separator 7 of a centrifugal type is installed in the upper part of the body; it has a pipe 8 of discharged liquid and an outlet 9. The scrubber works in the following way. With each clamp, the grille 4 is set at an angle determined by the mode of operation of the scrubber, depending on the manufacturer selected - dust and dust dispersion. The unclean gas went through the inlet nozzle 2 onto a grid 4, on which a large, weighted, suspended piece was suspended and under the action of inertial forces on the wetted surface of the grid plates. After the lattice, the gas still containing fine suspended particles passes through the water curtains outgoing from each lattice of the lattice and directed at an angle to the gas flow. The gas flow, twisted in the lower part of the scrubber, at a great peripheral speed, carries away a part of the water and irrigates the inner surface of the scrubber body 1 and spirals upwards along it. the water film does not break even at increased gas flow rates, which makes it possible to reduce the height of the scrubber. Under the action of centrifugal forces resulting from the rotation of the gaseous flow at a high circumferential speed, water droplets are discarded (penetrate the inner surface of the drop of the trap 7, where the gas is released from the water and is removed from the scrubber through the outlet 9. The drop catcher is , flows down the lower part and further along the pipe 8 from the scrubber. To adjust the volume of gas to be cleaned, the grate 4 rotates at a certain angle, increasing or decreasing the angle of inclination of the grate plates with respect to the direction 14 and gas flow, thereby increasing or decreasing the aerodynamic resistance of the scrubber. Thus, smooth gas volume control is achieved while maintaining high efficiency.When trapping fine particles, the injector must be rotated through a larger angle to create maximum inertial forces.The presence of a turning grating 4 in the inlet nozzle, and at the exit of the drop catcher, it was possible to increase the velocity in the cross section of the scrubber to 12-13 m / s. This, in turn, gave an increase in the performance of the scrubber 2.53 times, with a higher efficiency. dust collection and size and metal consumption reduction. Claims. A scrubber comprising a housing with an inlet nozzle, inside of which nozzles are installed and a grating placed in the housing, characterized in that, in order to increase the efficiency of dust collection due to the swirling of the gas flow, the grating is made of rectangular plates fixed to the grating body at an angle of 15 °, and is installed with the possibility of rotation relative to one of its ends at the AOR angle. Sources of information taken into account with experts 1. Authors certificate CCC №317398, cl. On 01 D 47/00, 1970.

2. USSR author's certificate, №427724, cl. On 01 D 47/06, 1972 (prototype).

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