SU971441A1

SU971441A1 - Apparatus for wet scrubbing hot gases

Info

Publication number: SU971441A1
Application number: SU813298922A
Authority: SU
Inventors: Виталий Анатольевич Вавилов; Анатолий Николаевич Балоболкин; Владимир Иванович Сухнев; Эммануил Яковлевич Тарат; Алла Петровна Медер
Priority date: 1981-06-05
Filing date: 1981-06-05
Publication date: 1982-11-07

Description

(54) УСТРОЙСТВО ДЛЯ МОКРОЙ ОЧИСТКИ ГОРЯЧИХ ГАЗОВ(54) DEVICE FOR WET GAS CLEANING

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Изобретение относитс к области отделени дисперсных частиц от газов с использованием жидкости в качестве отдел ющего агента и может найти применение в промышленности строительных материалов, химической , металлургической и других отрасл х народного хоз йства.The invention relates to the field of separation of dispersed particles from gases using a liquid as a separating agent and can be used in the building materials industry, chemical, metallurgical and other sectors of the national economy.

Известно устройство дл мокрой очистки газов, включающее частично заполненный жидкостью корпус с входаым и выходным патрубками. К корпусу примыкают верхн и нижн перегородки, образующие сужающуюс по ходу газового потока камеру, причем нижн перегородка выполнена в виде наклонной колосниковой решетки 1.A device for wet gas cleaning is known, comprising a housing partly filled with liquid with inlet and outlet nozzles. Adjacent to the body are upper and lower partitions, which form a chamber tapering along the gas flow, with the lower partition being made in the form of an inclined grate 1.

Недостатками известного устройства вл отс высокие знергетические затраты и удельные расходы чсидкости на процесс газоочистки . Указанные недостатки обусловлены тем, что газораспределительна решетка и пенный слой над ней в оптимальном режиме работы устройства создают большое гидравлическое сопротивление, дл прсодолеваНИН которого необходимы высокие энергетические затраты, а дл обеспечени пенного сло определенной высоты и структурных параметров расходуетс значительное количество жидкости.The disadvantages of the known device Owl ots high energy costs and unit costs of gas cleaning process. These drawbacks are due to the fact that the gas distribution grid and the foam layer above it in the optimal mode of operation of the device create a large hydraulic resistance, for which a high energy cost is required for the process, and a significant amount of liquid is consumed to provide the foam layer of a certain height and structural parameters.

Наиболее близким по технической сущности и достигаемому результату к предлагаемому вл етс устройство дл мокрой отастки газов, включающее частично заполненный жидкостью корпус , патрубки подвода и отвода газа, систему подвода жидкости и сливашлама , каплеуловитель и барботажную тарелку 2.The closest in technical essence and the achieved result to the proposed is a device for wet gas outgrowth, comprising a housing partially filled with liquid, gas inlet and outlet nozzles, a system for supplying liquid and sludge sludge, a drip catcher and a bubbling plate 2.

Claims

The drawbacks of the device are a decrease in the efficiency of the latter and its high hydraulic resistance. These drawbacks are due to the fact that during operation of the device, the wave mode of the foam layer occurs, as a result of which jet breakthroughs of the gas to be purified are formed. This reduces the efficiency of the device, and the high foam layer and small area of the free cross-section of the gas distribution grid 39 create a large hydraulic resistance. The aim of the invention is to increase the efficiency of the process of cleaning combustible gases. This goal is achieved by the fact that a device for wet cleaning of combustible gases comprising a housing that is partially filled with liquid, gas inlet and outlet connections, a system for supplying liquid and draining sludge, a drop catcher, a bubbling plate, is provided with two vertical partitions separating the housing into chambers and a gas distribution grid. refrigerator, made in the form of a coil and installed under the grill, vertical distribution plates placed under and above the grill, while the coil is connected to the system dvoda liquid. FIG. 1 shows a section of FIG. 2 - the same, side view; in fig. 3 is a section A-A in FIG. 1. The device comprises a housing 1, divided by partitions 2 and 3 into two communicating with each other in the lower part of chamber 4 and 5, partially filled with liquid 6. Partitions 2 and 3 form a channel 7 for the passage of gas to be purified. The device also contains an outlet 8 and outlet 9 nozzles, a fluid injection system U, a discharge pipe for cuttings 11, a bubble plate 12 and a drip tray 13. Chamber 5 is equipped with a refrigerator coil 14, installed above the gas distribution grid 15 equipped with plates 16 and 17. Plates 16 are placed above the grid 15, and the plates 17 are below the grid and partially or completely immersed in a 6.1 liquid, the plates 16 and 17 being located in mutually perpendicular planes. The plates 17 are rigidly strung on the refrigerator coil 14, and the plates 17 are cut out from the gas distribution side of the grid 15, and the ends of the plate 17 fit closely to the partition 2. The system 10 is equipped with a nozzle 18 connected by pipe 19 to a refrigerator with a coil 14 for supplying liquid. The fluid level in the device is maintained by overflow 20 or by another known method. The device works as follows. The dust-laden gas through pipe 8 enters the chamber 4 where it contacts the liquid 6 disintegrated by the nozzle 18. The liquid 6 is captured by the gas and carried away upwards, thus forming a foam layer above the bubble plate 12, with the help of which the gas is partially separated from coarse fractions dust and cools. Next, the gas to be purified through the channel 7 enters the chamber 5 under the gas distribution grid 15, displacing a certain volume of liquid 6 onto the grid. The latter is picked up by the gas and is carried upwards, while ensuring a stable circulation of the gas-liquid mixture, on the surface of which a foam layer is formed. Dust particles are deposited in the sedimentation zone, and liquid 6 particles entrained by the gas are trapped by the drip catcher 13. Clean gas is removed through pipe 9, the sludge is drained through pipe 11. Liquid 6 is fed into the device through pipe 10. Refrigerator coil 14 installed in chamber 5 above the gas distribution grid 15 allows cooling of hot gases and liquid 6, thereby improving the mass transfer process. Plates 16, mounted above the grill 15 and rigidly strung on the cooler coil 14, prevent the emergence of a waveguide-mode foam layer and prevent the cleaned gas from breaking through the foam layer. Plates 17 installed under the grate and cut out align the pressure of the gas to be purified in the sublattice space and evenly distribute the gas over the entire area of the grid 15. Using the invention improves the efficiency of the gas cleaning process due to the disappearance of the wave mode of the foam layer and uniform distribution of the gas to be purified over the entire area of the gas distribution grid and reduce the cost of the gas cleaning process by reducing capital and operating costs. The invention of the device for the wet cleaning of hot gases, comprising a body partially filled with liquid, gas inlet and outlet pipes, a system for supplying liquid and draining sludge, a drip catcher, a bubbling plate, which is designed to increase the efficiency of the gas cleaning process it is equipped with two vertical partitions dividing the body into chambers, a gas distribution grid, a cooler, made in the form of a coil and installed above the grate, with a vertical distribution layer We placed above and below the grid, and the coil is connected with the system fluid supply. Sources of information taken into account during the examination 1. USSR author's certificate No. 674770, cl. B 01 D 47/02, 1979.

2. USSR author's certificate number 589008, cl. On 01 D 47/02, 1978, (prototype).

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