KR800000872B1 - Filtration device such as sludge liquid - Google Patents

Abstract

None.

Description

Filtration device such as sludge liquid

1 is a top plan view showing a partial cross section of a filtration device according to the present invention.

2 is a side view of the filtration device of FIG.

3 is a front view of the filtration apparatus.

4 is a cross-sectional view of a filtration device detailing the arrangement of a housing, a filter screen wash water nozzle of a filter drum.

5 is a cross-sectional view showing another embodiment of the present invention.

The present invention relates to a filtration device used for sludge filtration such as manure, sewage, etc., comprising a rotary filter drum having a fixed housing and a periphery filter screen having an elongated pulp opening extending parallel to the axis thereof. And a sludge liquid supply means for supplying sludge liquid from the inside of the filter drum to the inner surface of the filter screen and arranged so as to have a space between the filter drum and the housing in the housing. The solid component is attached to the filter screen, and the liquid component passes through the elongated filter opening of the filter screen to the space, and the solid component on the filter screen is discharged from the inside of the filter drum through the housing in the form of deposits of filter residue. The liquid component is discharged from the space through the outlet as a filtrate.

The main object of the present invention is to provide a rotary filter drum having a filter screen around it, in which a sludge solution is continuously supplied from the inside of the filter drum to the filter screen in order to separate the sludge solution into a liquid component and a solid component. It is to provide a filtration device.

Another object of the present invention is to provide a filtration apparatus in which the color of the filter screen by solids can be minimized and the solid filtration residue attached to the inner surface of the filter screen is removed through the filter drum in the form of an aggregate.

According to the present invention, there is provided a filtration device comprising a rotating filter drum having a fixed housing and a perimeter filter screen of an elongated filter opening extending parallel to the axis thereof, wherein the inside of the housing is arranged to have a space between the filter drum and the housing. .

A sludge supply means is provided for supplying the sludge solution from the inside of the filter drum to the inner surface of the filter screen.

The solid component is attached to the filter screen, the liquid component enters the space through the elongated opening of the filter screen, and the solid component on the filter screen is discharged from the inside of the filter drum through the housing in the form of an aggregate of filter residues, The liquid component exits the space through the outlet as a filtrate.

In more detail by the present invention, a fixed housing having a front wall and a rear end wall, wherein the housing has an elongated filter opening extending parallel to the shaft and the shear opening arranged to form a space between the housing and the filter drum. A filter drum having a periphery of the filter screen, means for rotating the filter drum, extending into the filter drum, the solid component being attached to the inner surface of the filter screen as a filter residue and the liquid component from the space as a liquor solution. The sludge liquid supply pipe ending at the opening means and spray filter sludge is sprayed onto the inside of the filter screen of the rotating filter drum to separate the sludge liquid into the solid and liquid components through the long elongated opening of the filter screen. Means for discharging the aggregate of filter residue formed on the inner surface of the filter screen during rotation, and The sludge liquid filtering device consisting of outlet and to discharge to the outside is provided woosing.

In a preferred embodiment of the present invention, the filter drum includes a rear end ring and a front annular ring forming the opening, and the filter screen of the filter drum has a thin filter drum shaft between two adjacent rods. Extending in parallel, each rod comprises a series of closely spaced filter rods, with the vertices of the triangular vertebrae facing outwards and having a cross section at an angle, one end fixed to the rear end wall and the other end fixed to the front annular ring. .

The filtration apparatus includes a wash water supply pipe extending through the housing to the space between the housing and the filter drum and having a nozzle for dispensing the wash water to clean the filter screen on the outer surface of the filter screen.

Other objects and advantages of the present invention will become apparent from the following examples in accordance with the drawings.

1 and 2 in the figure, the filtration apparatus is composed of a fixed cylindrical housing 10 having a rear end wall 11 and fixed to the substrate 12.

The shear plate 13 forming the front wall is divided into two semi-circular portions 14 and 15, one of which is inward from the shear edge of the cylindrical housing 10. It is fixed to an extended annular flange 16 and the other semicircular shape 15 is perpendicular to the semicircular portion 14 by a hinge 17 to provide a lid on the housing 10. It is connected to the pivot axis by the part.

The filter drum 18 is located concentrically with the housing 10 to form an annular space 18 'for the filtrate between the drum and the housing, from the circular rear plate 19 and the rear plate 19. It consists of an annular front support ring 20, a rear end plate 19 and a cylindrical filter screen 21 supported on the ring 20 at a predetermined interval.

As shown in FIG. 4 in the figure, the cylindrical filter screen 21 has a series of closely spaced intervals in which the top of each rod faces outward and extends parallel to the axis of the filter drum 18, the cross section being triangular in shape. And a filter rod 22 that is dull.

Each rod 22 has one end fixed to a circular rear end plate, the other end fixed to an annular front support ring 20, and two adjacent filter rods 22 are thin and elongated parallel to the axis of the filter drum 18. The filter opening 23 is formed.

The shaft 24 extending through the rear end wall 11 of the housing 10 is fixedly connected to the circular rear end plate 19 of the filter drum at its inner end in line with the axis of the filter drum 18, and the substrate 12. It is supported by the rotating material by the bearing 26 located in the bearing housing 27 fixed to the). The motor 30 of the reduction gear 34 is embedded in the substrate 12, and the sprocket 35 is fixed to the output shaft 36 of the reduction gear 34.

The sprocket 37 is fixed to the outer end of the shaft 24, and transmits the rotation of the motor 30 to the shaft 24 through the reduction gear 34, the filter drum (10) in the outer housing (10) It is effectively connected to the sprocket 35 by the chain 38 to turn 18) at the required speed.

The sludge liquid supply pipe 39 extends into the filter drum 18 from the outside of the housing 10 through the upper portion of the semicircular portion 14 of the shear plate 13 and is firmly fixed to the semicircle 14 plate.

The extension of the sludge supply pipe 39 into the filter drum 18 is directed toward the filter screen 21 at the upper part of the filter drum 18 and is provided with opening means 40 located adjacent to the inner surface of the filter screen 21. Ends in

Cylindrical housing 10 is formed at the top, the outwardly protruding portion 41, to which the washing water supply pipe 42 is attached. In order to clean the filter screen 21, a nozzle 43 for spraying the washing water on the outer surface of the filter screen 21 of the filter drum is fixed to the inner end of the washing water supply pipe 42.

The discharge means is provided in the filter drum 18 so as to collect the filter residue adhered to the inner surface of the filter screen by the sludge filtration from the opening means 40 through the filter opening 23 of the filter screen. 47 '), a pair of facing front and rear walls 48, side walls 49, and extending forward from the front wall 48 and communicating with the interior of the collector 46; And a collector 46 comprising a discharge runway 50.

Preferably, the collector 46 has the top of the inclined wall portion 47 'of the collector 46 properly spaced from the inner surface of the filter screen, and clockwise 220 in a vertical plane extending upwardly from the axis of the housing 10. Arranged to be in an angular range of -250 °. The collector 46 is also supported from the front wall semicircle 14 by a connecting rod 51 extending through the opening of the annular front support ring 20 on the filter drum 18.

The lid is provided as an exit runway 52 used to communicate with the discharge runway 50 of the collector when the lid is in the closed position. The housing 10 is provided as a filtrate collector 53 which terminates at the outlet 54 and communicates with the annular space 18 ′ between the housing and the filter drum 18.

In the actual machine shown in FIG. 5, only the discharge chute 50 'is provided to directly remove the accumulation of the filter residue from the inside of the filter drum.

In operation, rotation of the motor 30 is transmitted to the shaft 24 through the reduction gear 34, the sprockets 35, 37 and the chain 38 to move the filter drum 18 clockwise. Rotate

Preferably, the filter drum 18 is rotated at 10-35 ° r.p.m. Sludge to be treated, such as manure, which is expelled from sewage or urban dwellings, is removed from the filter screen 21 of the filter drum 18 which rotates from the sludge liquid source through the opening 40 of the pipe 55 and the supply pipe 39. Continuously supplied over the inner surface, as a result, most of the solid part contained in the sludge solution adhered to the inner side of the screen 21 to form a filter residue, while the liquid part was the long and narrow filter opening of the filter screen 21. Through 23, it enters into the annular space 18 'as a filtrate. The filtrate in the annular space 18 ′ flows toward the collector 53 and is discharged through the screw outlet 54. The filter residue is sufficiently dehydrated by rotation while being transported together with the filter drum 18.

The dewatered filter residue is separated into the inner surface of the filter screen 21 by adhering to the aggregate of the filter residue formed before. The aggregates also adhere to each other by rolling the filter residues carried to the inner surface of the filter screen 21 to form larger ones. It will be noted that the rolling action of the aggregate facilitates the separation of the filter residue from the inner surface of the filter screen, thus preventing the blockage of the filter opening by solids. In this way, the filter residue 18 conveyed upward along the screen inner surface by the rotating filter drum 18 falls into the collector 46, and as a result, the apparatus through the discharge runway 50 and the exit runway 52. It can be discharged to the outside.

In the embodiment shown in FIG. 5, the aggregate of the filter residue is discharged directly from the inside of the filter drum through the discharge runway 50 '.

When the filtration is completed, the washing water from the supply pipe 42 is sprayed on the outer surface of the filter screen through the nozzle to clean the filter opening of the filter screen 21 while rotating the filter drum 18.

The dirty water passing through the filter opening can be returned to the annular space from the inside of the drum 18 through the filter opening, and the result is discharged out of the apparatus through the outlet.

In the present invention, manure, sewage or other sludge liquid can be continuously filtered in such a manner that the solids in the liquid are continuously removed in the form of their accumulation, and the sludge liquid is supplied onto the filter screen so that the filter residue is filtered in the filter drum. It will be noted that an arrangement is provided in which the filter screen is not occluded by the fact that it is reliably separated from the filter screen during the rotation of.

Claims (1)

A filter drum 18 having a fixed housing 10 having a front wall 48 and a rear end wall 11, and an annular ring 20 arranged in the housing 10 and forming a front opening adjacent to the front wall 48. Between the rod 22 and the rod 22 by being composed of a series of filter rods 22 extending at narrow intervals parallel to the central side of the filter drum 18 between the annular ring 20 and the rear end plate 19. The filter drum 18 forming an annular space 18 'between the rear end plate 19, the peripheral filter 21, the housing 10, and the filter drum 18, on which the elongated filter opening 23 is formed, By supplying sludge solution to the means 30, 34, 35, 36, 37, 38 for rotating the filter drum 18 and the filter screen 21 of the rotating filter drum 18, The sludge solution supply means 39, 55 extending into the filter drum 18 which separates the liquid component and attaches the solid component onto the filter screen 21, and filter residue of the solid component from the inside of the filter drum 18. ship Dispensing means (50, 52), the elongated filter opening 23 and the annular space (18 ') means for discharging the liquid component to the outside of the housing 10 (53, 54), the upper end of the filter drum (18) And a pipe 39 extending horizontally through the front opening of the filter drum 18 toward the inner surface of the filter 21 of the filter drum 18 at an intermediate position between the central axis of the drum 18 and the filter. The sludge liquid supply means (39, 55) is provided with an opening means (40) for effectively separating the sludge liquid into a solid component and a liquid component by spraying the sludge liquid on the downwardly moving portion of the screen (21). The solid component carried by the screen 21 is separated from the filter screen 21 by adhering to an accumulation of filter material which is rolling at the bottom of the drum 18 due to the rotation of the drum 18, and the filter screen 21. ) The discharged water of the filter residue accumulated on the inner surface Sludge liquid filtration apparatus according to the features gradually discharged through 50 and 52.

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