SU886951A1

SU886951A1 - Dust separator

Info

Publication number: SU886951A1
Application number: SU802908078A
Authority: SU
Inventors: Иосиф Ярославович Долошицкий; Степан Теодорович Вовк; Геннадий Сергеевич Черкез; Богдан Миронович Курилко; Олег Николаевич Романенко; Михаил Федорович Соколовский; Богдан Николаевич Яремчук; Иван Кириллович Миньков; Лариса Сергеевна Горбачева
Original assignee: Калушский Филиал Всесоюзного Научно-Исследовательского И Проектного Института Галургии; Производственное объединение "Хлорвинил"
Priority date: 1980-02-25
Filing date: 1980-02-25
Publication date: 1981-12-07

Description

(54) ПЫЛЕОТДЕЛИТЕЛЬ(54) DUST DETECTOR

1one

Изобретение относитс к области газоочистки , в Частности к пылеотделител м, и предназначаетс дл очистки газовых потоков в химической, энергетической, металлургической и других смежных отра|СЛ х 5 п:р ом ы ш л ей н ости.The invention relates to the field of gas cleaning, in particular to dust separators, and is intended for the purification of gas streams in the chemical, energy, metallurgical and other adjacent sectors of the world.

Известен инерционный пылеотделитель , содержащий корпус, рдсположеииые в ©го верхней части осевую трубу дл ввода очищаемого газа и патрубок дл отвода Ю очищенного газа, установленную концентрично осевой трубе вставку, выполненную в виде цилиндра и расположенного над ним меньшим основанием вверх усеченного конуса с жалюзи 1.15A inertial dust separator is known, comprising a housing, an axial tube at the top of the upper part for introducing the gas to be purified and a nozzle for withdrawing 10 purified gas, an insert arranged concentrically to the axial tube, made in the form of a cylinder and a lower cone with a smaller base upwards with a truncated cone with louver 1.15

Однако при очистке от пыди газов с высокой концентрацией пыли (твердого) эффективность очистки недостаточно высока Вследствие того, что на выходе жалюзийных решеток из-за турбулизации частицы 20 пыли увлекаютс газом и унос тс из аппарата . Цель изобретени - повышение степени сепарации и обеспечение вшможности очистки сильнозапыленных газов.25However, when cleaning gases from dust with a high concentration of dust (solid), the cleaning efficiency is not high due to the fact that at the exit of the louvered grilles, due to turbulence, dust particles 20 are entrained in gas and carried away from the apparatus. The purpose of the invention is to increase the degree of separation and ensure the possibility of cleaning highly dust-free gases.

Предложенный пылеотделитель, содержащий корпус, расположенные в его верхней части осевую трубу дл ввода очищаемого газа и патрубок дл отвода чистого газа, установленную концентрично осевой 30The proposed dust separator, comprising a housing, an axial tube located in its upper part for introducing the gas to be purified and a nozzle for evacuating clean gas, mounted concentrically axially 30

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трубе вставку, выполненную в виде цилиндра и расположенного над ним меньшим основанием вверх усеченного конуса, снабжен укрепленным на меньшем оснований конуса тангенциальным завихрителем, а осева труба выполнена в виде сопла Лавал , критическое сечение которого расположено на уровне меньшего основани усеченного конуса, а выходное сечение на уровне больщего основани .the tube insert, made in the form of a cylinder and a smaller conical cone located above it with a smaller base, is equipped with a tangential swirler mounted on a smaller base of the cone, and the axial tube is made in the form of a Laval nozzle, the critical section of which is located at the level of the smaller base of a truncated cone, and the output section on level greater base.

На чертеже представлена схема описанного устройства.The drawing shows the scheme of the described device.

Пылеотделитель содержит корпус 1 с конусным днищем, осевую трубу 2 с соплом Лавал 3, вставку 4, завихритель 5, выходной патрубок дл очищенного газа 6 и выходной патрубок твердых частиц 7, на котором устанавливаетс затвор любой известной конструкции.The dust separator comprises a cone-bottom housing 1, an axial tube 2 with a Laval nozzle 3, an insert 4, a swirler 5, an outlet for cleaned gas 6 and an outlet for solids 7 on which a shutter of any known construction is installed.

Пылеотделитель работает следующим образом.Dust separator works as follows.

Claims

Dust gas enters the inlet pipe 2 with a Laval nozzle 3, where solid particles are concentrated (reflected to the axis) at the axis and after leaving the Laval nozzle fall into the conical part of the housing 1, from where they are discharged through the outlet 7. The gas flow in the cylindrical part insert 4 rotates 180 °. A separate gas flow takes some more of T1 solid particles, then enters that: a genital swirler 5, where, due to the vortex and inertial forces of the particle, hit the wall of the core 1 and slip into the gap between the insert 4 and the housing 1 and get into izhizhyuyu part of the body. Particles that do not reach the wall of the housing crawl along the inclined wall of the upper part of insert 4. The cleaned gas exits through the outlet nozzle for the cleaned gas 6. The separation of the gas cleaning process from dust at the D1 stage allows the use of a dust separator to clean gases with considerable dustiness. In the dust separator, the main part of the solid particles after the Laval nozzle first occurs, then the additional gas cleaning from dust occurs after the tangential swirler. In the Lawal nozzle, the particles are reflected to the axis and, coming out of it under the action of M inertia forces, the particles are deposited in the conical part of the bottom. Since the Lawal nozzle has: rashchi, rhenium at the outlet, the gas flow rate at the outlet decreases, and more sharply in the cylindrical part, since the outlet from the nozzle is flush with the beginning of the cylindrical part of the insert. In this part, the gas stream is rotated 180 °, drawing some of the dust (particles) from the bottom. Further, it passes through the tangential swirler, which is installed in the critical section area of the Laval nozzle. In this zone, the cross-section of the inlet is minimal, so the resistance to the movement of the gas flow will be lower than in any other zone when a swirl is installed in it. This also eliminates the possibility of gas entering the gap between the body and the glass. DETAILED DESCRIPTION OF THE INVENTION A dust separator comprising a housing, an axial support arranged in its upper part for introducing the gas to be purified and a nozzle for evacuating clean gas, an insert arranged in a concentric-axial tube made in the form of a cylinder and a truncated cone located above it with a smaller base, characterized in that in order to increase the degree of separation and to ensure the possibility of cleaning highly dust-free gases by improving hydrodynamic conditions, it is equipped with a reinforced cone on a smaller base angentsialnym head them, erator, and the axial tube vsholnena as a Laval nozzle, the critical section koTO .pioro .raspolozheno at the minor base of the truncated cone, and an output section at a larger base. The source of information taken into account in the examination: 1. USSR Author's Certificate No. 611646, cl. On 01 D 45/04, 1975.