SU1237240A1 - Bag filter - Google Patents

Description

Of: the acquisition relates to devices for cleaning gas streams from dust and can be used in the chemical, petrochemical, and other industries of the industry.

The purpose of the invention is to improve the performance of the filter by ensuring its continuous operation.

FIG. 1 schematically shows a bag filter; a slit in FIG. 2 - section A – A in FIG. one .

The filter consists of a casing with gas inlet nozzles 2, which is installed tangentially and a clean gas outlet 3. A hopper 4 with a feeder 5 is attached to the lower part of the casing 1; in the casing 1, porous elastic sleeves 7 and 8 having same length. At the point of attachment of the sleeves 7 and 8, one rectangular-shaped hole was made in the sleeve grille 6. Moreover, the perimeter of the sleeves 7 and 8 B of their attachment to the sleeve grille 6 is equal to 0.6-0.8 of the perimeter of the hole formed. A jumper 9, which is movably mounted, passes through this hole. On it and on the edges of the sleeve grille 6, the crepe is made from the sleeve 7 and 8. As a result, jumper 9 is common to the two sleeves. In the bottom part of the sleeves 7 and 8, weights 10 are fixed on their movable ends, having the same mass. The guides 11, attached to the sleeves of the sleeves, are fixed on the cover of the cylinder and on the struts 12.

Jumper 9 can occupy two extreme positions in its reciprocating motion, position 1 and I.

Bag filter works as follows,.

Jumper 9 is in one of the extreme positions, for example, position I. Free movement of jumper 9 to position 1 or I is ensured by the size of sleeves 7 and 8 6 meters from the attachment to the hose grille 6. Dust gas through pipe 2 enters the filter. Since the inlet pipe 2 is installed tangentially to the body, the gas acquires a zak;

movement in as a result, coarse dust is emitted from the gas in the lower part of the housing 1. Sleeves 7 and 8 are in the lower position, as they are affected by the weight of loads 12 that have the same weight. Next, the gas passes through the sleeves 7 and 8 and is cleaned from the filter through the pipe 3. On the walls of the sleeves

7 and 8 a layer of dust accumulates and the filter resistance increases. At a certain point in time, the weight of the load 10, the sleeve 7 and the dust layer formed on it is equal to the lifting force acting neither the sleeve 7. The lifting force is equal to the product of the cross-sectional area of the fixed end of the sleeve and the filter resistance.

At this point in time, sleeve 7 begins to rise and turn in the up position. The sleeve 8 is in the lower position (see Fig. 1), since the lifting force acting on it is less than the force acting on

 sleeve 7 ... This is explained by a smaller cross-sectional area of the position of the end face of sleeve 8 as compared to p sleeve 7. At the next time point, jumper 9 is moved to position K. The lifting force acting on sleeve 8 increases and exceeds the total the weight of the sleeve 8, and the force acting on the sleeve 7, decreases and the weight of the sleeve 7 exceeds the lifting force. As a result, the sleeve 8 rises to the upper position, and the sleeve 7 descends to the lower position. During the unfolding of the sleeves 7 and 8, the dust is regenerated and poured into the hopper 4. From the hopper 4, the dust is removed by the feeder 5. Subsequently, the bridge 9 is again placed in position, etc.

Thus, due to the fact that J3 at the attachment points of the fixed ends of the sleeves in the tube plate are made rectangular holes and in this hole two sleeves are fixed, having a common jumper that is mounted so that it can move in the tube plate, the filter is continuously operated in gas cleaning mode using the entire surface of the filter sleeves.

Editor N.Kishtulinets

Compiled by E. Pisareva

Tehred L.Oleynik Proofreader, S.Cherni

Order 3222/8

Circulation 663 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

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FIG. 2

Claims (1)

HOSE FILTER, comprising a housing with nozzles for entering and exiting purified gas, vertical elastic porous sleeves provided with guides and fixed on a hose grill having holes in the attachment points, a regeneration device, a hopper and a dust discharge mechanism, characterized in that , in order to increase productivity by ensuring continuous operation of the filter. it is equipped with a common jumper for two sleeves fixed in each rectangular hole of the sleeve, which is mounted with the possibility of movement in the sleeve grate, and the perimeter of the sleeve in the place of its attachment to the sleeve grate is 0.6-0.8 perimeter g of the rectangular hole. SU,. „1237240 $ I 237240