JPS5832600A - Hydroextractor - Google Patents

Abstract

PURPOSE:To perform dehydration efficiently with low percentage of water content by pressing each supporting roller on one of a couple of endless tracks, where endless filter cloth belts are put on externally, to the other endless track under specified presure for every grouped rollers. CONSTITUTION:Endless tracks 1 and 2 are run as shown by arrows (a) to run filter cloth belts 11 and 12 in the same direction. Then, when sewage is fed into a box 15, the sewage is supplied through uniforming rolls 17 onto the lower filter cloth belt 12 by a specified quantity at each time. This sludge once entering a dehydration section alpha is pressed between an upper pressing plate 10 and a lower pressing plate 10 pressed downward through each supporting roller 18 by respective cylinder devices 27-29. The water in the sludge is squeezed and passes through the filter cloth belts 11 and 12 to fall on a receiving dish 40 through the through holes in the plates 10. The dehydrated sludge is discharged from terminals of the tracks 1 and 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehydrator for dewatering sewage sludge and the like.

Conventionally, vacuum filters, centrifugal dehydrators, belt presses, and Lye 411 presses have generally been used to dewater sewage sludge.
However, the vacuum filter A/Ji% centrifugal dehydrator and Beitoderes cannot perform strong dehydration, and there is a limit to the reduction in water content. On the other hand, the buoy V-tables uses a patch method for processing, which has the drawbacks of complicated operations and a small amount of spoon.

Therefore, the present invention provides a compact dewatering machine free from such drawbacks. Hereinafter, one embodiment of the present invention will be described with reference to the drawings. (
1) and (2) are a pair of upper and lower endless tracks, with a drive shaft (3
) (4), the driven shafts (5) (6) parallel to the drive shafts (3) (4) on the horizontal line, and each of the shafts (
Endless type with loaf (8) wound between the tin zero-butt wheels 7L' (7) arranged in pairs on each of 3) to (6) and the sprocket wheels A/(7) facing each other. It has a chaino (9) and nine pressing plates αQ which are arranged at regular intervals along the running direction (a) of the chaino (9) and whose both ends are connected to each chaino (9) K.

Note that the lower endless track (2) is lower than the starting end of the upper endless track (1).
) is more protruding outward @ul11! l
Fi is an endless furnace cloth that is fitted onto each of the endless tracks (1) and (2), and both gIll edges Ifc are fitted with one endless wire leap I. 041 is each cloth 111
A tension roller that applies tension to 1 and 2, - is a sewage sludge supply box whose lower end opening is located above the starting end of the lower m endless track (2), and α71 is installed at the lower end opening S of the box itself. This is a leveling row ν for supplying sewage sludge α in fixed quantities.

Qlla- are the parts of each endless track (1) that are close to each other.

That is, a plurality of (nine in this example) supporting lobes support each pressure plate in the dewatering section, and each roller Ia is supported multiple times along the running direction of the endless tracks (1) and (2). t (5 in this embodiment), and each divided roller +11 is provided with a bearing unit -~-, -~- which rotatably supports both ends of the roller +11, and each unit 13~ 4 fixed frame 11mK! ! The upper lIO unit is equipped with a cylinder device that allows each unit to be raised and lowered separately. @ is arranged below the lower endless track (2) and has a round saucer, -haka cloth surface a!
Shower for washing, cIrJ is 1PJi prefecture)
A scraper is used to scrape off sewage sludge adhering to the sewage sludge.
8) Horizontal #- marks are formed at regular intervals along the direction of arrow (A) on the opposite side of the guide rail that supports the score, and each route (to) is awarded from within each result #-. A large number of through holes are formed.

In the above configuration, both infinite sails (1) and (2) are indicated by arrow U.
) direction. This will cause the valley or cloth (gate 1a21
4 When sewage sludge θυ is fed into the primary box where K is run in the same direction (a), the sludge a is regulated in quantitative quantities by the leveling flow A/(1η). It is transported to Ishioka (arrow U) by cloth α2. When the sludge Q61 enters the interior of the ice ward, this sludge A81 is pressed downward by each of the cylinders F to 4 through each support loaf a mallet (Each pressing plate on the upper side)
The sludge a6 is strongly clamped between the sludge A6 and the lower pressurizers QO, and the water contained in the sludge a6 is squeezed out. This drained water is on the streetcar 1! - Passing through flI#-, passing through 1 through hole - falling onto the saucer handle, 1 being collected, and 4
．． On the other hand, the dehydrated dirty Mad has both endless tracks (1) 42
) is discharged from the end. In this embodiment, each supporting roll I- is divided into five parts, and each upper row A/ll field is configured to be pressed by a V cylinder device i1@~4 for each bearing unit. Therefore, the sludge can be divided into three stages and the pressures of Vc# can be efficiently dewatered in order of weak, medium and strong.

As described above, according to the dehydrator of the present invention, each support lobe that supports the mutually close portions of each S@track is divided into a plurality of parts along the running direction of the endless track,
A plurality of vlls that press each lobe of one endless track to the other endless track with a predetermined pressure for each divided lobe.
Since a damper is installed, the material to be dehydrated that enters the dewatering section of both 111ffl tracks is removed every few steps of 1 m.
It can be dehydrated efficiently by applying pressure to the water.

[Brief explanation of drawings]

The figures show an example of a dormitory ItA according to the present invention, where Figure 1 is a partially cutaway schematic m-plane view, Figure 2 is a vertical cross-sectional view, Figure 5 is the melon-monya diagram of Figure 41, and Figure 4 is a cross-sectional view. The figure is ■-W*F of Happy 1 figure! Figure L and Figure 5 are views taken along the marma arrow in Figure 4. (1) (2) ... endless track, (to) ... pressure play), tllafi ... furnace cloth % - ... supply box, - ... sewage sludge, Q8ifi ... support row V
%-～-1(to)-1...Bearing unit,(B)～4...V9n device agent Yoshihiro Morimoto Procedural amendment (own ship 1981 patent application No. 130031 1'F)
2. Name of the invention Dehydrator 3. Relationship with the case of the person making the amendment Name of patent applicant (,511) Hitachi Zosen Corporation 4 Agent Address 〒(6) Amano Building, 1-6-17 Tachiuribori, Nishi-ku, Osaka Showa month/day 6, number of inventions increased by 7 due to amendment, detailed explanation of the invention in the specification subject to amendment 1, column for detailed explanation of the invention in the specification ■Page 3, line 15 "Cylinder ``Device - (2)'' is replaced with ``Cylinder device (
Correct it to ``4''. ■Page 3, line 16, ``(2)'' is corrected to ``14α.'' ■Page 4, line 17, ``saucer-'' is corrected to ``saucer decoy''. 2. Some of the drawings, Figures 1 and 2, are corrected as shown in the attached sheet. (2)

Claims (1)

[Claims] 1. A pair of free-wheeling vehicles! ＆#L, each endless track is fitted with an endless furnace cloth, and a supply for supplying the material to be dehydrated to the APJ is installed, and the above-mentioned endless tracks are placed close to each other. A plurality of supporting rollers are provided, each of which supports one part of the track, and each roller is divided into four values along the running direction of the endless track. Nothing@
Dehydration-6 characterized by the provision of an @Ovunda device that is inserted into the orbit at a predetermined pressure.