CN201458936U

CN201458936U - Sludge drying device

Info

Publication number: CN201458936U
Application number: CN200920048181XU
Authority: CN
Inventors: 蒋文俊
Original assignee: Jiangsu Jiangda Ecological Technology Co Ltd
Current assignee: Jiangsu Jiangda Environment Technology Co. Ltd.
Priority date: 2009-08-31
Filing date: 2009-08-31
Publication date: 2010-05-12
Anticipated expiration: 2019-08-31

Abstract

The utility model relates to a sludge drying device. According to the technical scheme provided by the utility model, the sludge drying device comprises a drying bed, wherein a water collecting ditch is arranged at one end of the drying bed; a drain board with a single-sided convex plate is arranged at the bottom of the drying bed; the bottom of the drying bed is in a water wave shape or a toothed shape in the width direction and is an inclined plane in the length direction; the water collecting ditch is arranged at the lower end of the drying bed; a plurality of plastic pipes with holes are arranged on the drain board along the inclined plane; the lower ends of the plastic pipes with holes are mutually connected and then connected to the water collecting ditch; a geogrid is arranged on the plastic pipes with holes; and a second water filtering layer is coated on the geogrid. The utility model improves the drain rate, shortens the total drying time, has reasonable arrangement and high speed and short time in the process of drying sludge, and is especially suitable for projects with large dredging amount.

Description

The mud desiccation apparatus

Technical field

The utility model relates to the environmental protection field, and the drying and other treatment field of mud and mud especially belongs to the drying and other treatment technology of mud and mud.

Background technology

Mud is meant the fine that deposits and contain organic matter in hydrostatic or slow flowing water environment, and its natural moisture content is greater than liquid limit, and natural void ratio is greater than 1.5.In handling a large amount of mud (water ratio 80-90%) process, a large amount of water is arranged in mud, depend merely on traditional row of oozing naturally, drying bed is dark more, and the bottom mummification needs for a long time more, and what have reaches several years.Cause the land occupation area big, the time is long, the mummification weak effect; Simultaneously, mud regeneration in time.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can accelerate the mud drying time, and is effective, is fit to the efficient mud desiccation apparatus of a large amount of mud of drying and other treatment.

The technical scheme that provides according to the utility model, described mud desiccation apparatus comprises drying bed, it is characterized in that: the end at drying bed is provided with collecting gutter, be provided with the drain board of single face boss in the bottom of drying bed, the bottom of drying bed is wide to being water wave type or prionodont, long to being the scarp, the low side of drying bed is provided with collecting gutter; Be provided with some perforated plastic pipes on scarp, drain board upper edge, be connected to collecting gutter after the low side interconnection of perforated plastic pipe; On the perforated plastic pipe, be provided with geo-grid, on geo-grid, lay the second drainage layer.

Around described drying bed, be provided with the cofferdam.Described perforated plastic pipe is wrapped with the first drainage layer.Collecting gutter is connected with vacuum pump, and sealing.

The utility model has improved discharge rate, has shortened whole drying time; Connection and reasonable arrangement makes the mummification speed of mud fast, and the time is short, is particularly suitable for the big engineering of desilting amount.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is the B-B view of Fig. 1.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

Shown in Fig. 1～3: the mud desiccation apparatus comprises drying bed 1, drain board 2, perforated plastic pipe 3, the first drainage layer 4, geo-grid 5, the second drainage layer 6, collecting gutter 7, vacuum pump 8, cofferdam 9 etc.

The utility model comprises drying bed 1, is provided with cofferdam 9 around drying bed 1, is provided with collecting gutter 7 at an end of drying bed 1, be provided with the drain board 2 of single face boss type in the bottom of drying bed 1, drying bed 1 bottom is wide to being water wave or prionodont, and is long to being the scarp, slope tendency collecting gutter 7; Be provided with some perforated plastic pipes 3 on scarp, drain board 2 upper edge, slope tendency collecting gutter 7, perforated plastic pipe 3 is wrapped with the first drainage layer 4, is connected to collecting gutter 7 after the end interconnection of perforated plastic pipe 3; Be provided with geo-grid 5 on perforated plastic pipe 3, lay the second drainage layer 6 on geo-grid 5, geo-grid 5 plays the effect of the skeleton of holding drainage layer 6.

Collecting gutter 7 is connected with vacuum pump 8, and sealing.

The utility model is compared with prior art: at drying bed 1 interior laying drain bar 2, the mud that is equivalent in the whole drying bed 1 is in hanging shape, greatly improved the ability of certainly oozing of mud, can be down to 60-65% within a short period of time with the mud moisture content, improve discharge rate, shortened whole drying time; Along with the mud later stage is oozed weakening gradually of ability certainly, must further aspirate by vavuum pump 8, make the moisture content of mud be down to 30-35%; By the filtration of 4 two layers on the second drainage layer 6 and the perforated plastic pipe 3 outer field first drainage layers, the discharge water of river, lake silt meets discharge standard fully.

Claims

1. mud desiccation apparatus, comprise drying bed (1), it is characterized in that: the end at drying bed (1) is provided with collecting gutter (7), be provided with the drain board (2) of single face boss in the bottom of drying bed (1), the bottom of drying bed (1) is wide to being water wave type or prionodont, long to being the scarp, the low side of drying bed (1) is provided with collecting gutter (7); Be provided with some perforated plastic pipes (3) on drain board (2) scarp, upper edge, be connected to collecting gutter (7) after the low side interconnection of perforated plastic pipe (3); On perforated plastic pipe (3), be provided with geo-grid (5), go up in geo-grid (5) and lay the second drainage layer (6).

2. a kind of mud desiccation apparatus as claimed in claim 1 is characterized in that: be provided with cofferdam (9) on every side at described drying bed (1).

3. a kind of mud desiccation apparatus as claimed in claim 1 is characterized in that: described perforated plastic pipe (3) is wrapped with the first drainage layer (4).

4. a kind of mud desiccation apparatus as claimed in claim 1 is characterized in that: collecting gutter (7) is connected with vacuum pump (8), and sealing.