JPS60248205A - Sludge separating device - Google Patents

Abstract

PURPOSE:To facilitate cleaning and removal of sludge accumulated in the bottom section of a sludge separating device and to reduce the sludge to be mixed with separated water to be recycled by providing a baffle plate to the bottom surface of a stagnating section of the separated water. CONSTITUTION:A baffle plate 25 is provided upward from the bottom surface 26 of a stagnating section 20 of separated water with an inclination to a ruffling preventing plate 21 to inhibit migration of sludge from a settling and separating section 10 to the stagnating section 20 of the separated water. As the result, the slurry freed of sludge by settling while it is introduced from a slurry inlet 11 into the settling and separating section 10 being prevented from ruffling by the ruffling preventing plate 21, flows as separated water through a clearance 27 between the ruffling preventing plate 21 and the baffle plate 25 into the stagnating section 20 of the separated water, where it is freed of suspending sludge by a strainer 23, and is sucked into an outlet 24 of the separated water by a water washing pump and fed as washig water to a washing spray. Further, the sludge accumulated in the bottom of the settling and separating section 10 is discharged from a discharging port 12 of sludge and removed.

Description

[Detailed description of the invention] a　Industrial application field The present invention relates to a sludge separation device.

b. Prior Art In devices for sedimentation and separation of sludge in slurry, various problems occur if sludge separation is insufficient.

For example, the sludge separation device shown in Figure 2 separates the sludge in the slurry generated during the process of washing with water and removing the sludge that is generated during the chemical conversion coating treatment performed as a pre-painting treatment and adheres to the surface of the treated object. It is a device that removes In the figure, 1 is the slurry population, 2 is the sludge discharge port,
3 is a ripple prevention plate, 4 is an overflow gutter for water level adjustment, 5 is a separated water outlet, and 6 is a strainer. The ripple prevention plate 3 is provided to protrude downward from the upper part 7 of the sludge separator, and the pump suction port 5 is provided at the lower part.

The slurry generated by the water washing treatment is introduced into the sludge separator at a slurry concentration of 1, and ripple and foaming are suppressed by the ripple prevention plate 3, and the sludge in the slurry is separated by sedimentation and sedimentation. and deposits on the bottom 8. Separated water from which sludge has been separated from the slurry is sedimented and separated by a strainer 6 to remove floating sludge, and sent from the separated water outlet 5 to the washing treatment equipment by a pump (not shown), where it is used as washing treated water. Reused. The overflow gutter 4 has the function of adjusting the water level and removing sludge and other objects floating on the liquid surface.

However, in the conventional apparatus described above, sludge accumulates over the entire bottom part 8 of the sludge separator, so when cleaning and removing sludge from the sludge removal port 2,
It requires a lot of time and effort. In addition, since sedimentation and separation are not performed sufficiently, unsettled floating sludge that passes through the strainer 6 is sucked in by the pump from the pump suction port 5, and transferred to the object to be treated through the communicating spray nozzle for washing. Sprayed. As a result, sludge accumulates inside the pipe leading from the pump suction port 5 to the washing spray nozzle and inside the spray nozzle, causing the inside to become clogged and hindering the washing process of the object to be processed.
This may lead to quality defects.

C.Object of the Invention In view of the above circumstances, the present invention provides a sludge separator in which the sludge that settles and separates from the slurry and accumulates at the bottom is easy to clean and remove, and in which less sludge gets mixed into the separated water that is recirculated. The purpose is to provide

d.Structure of the Invention The present invention is characterized by having a sedimentation separation section and a separated water retention section formed by an anti-undulation plate protruding downward from the inner surface of the upper part of the sludge separator; is the slurry population at the top and the sludge discharge at the bottom
- in a sludge separator having a water level adjustment part and a separated water outlet, the separated water retention part has a mouth, and the separated water outlet is disposed at a position close to a water level held by the water level adjustment part; A baffle plate is erected from the bottom of the separated water retention section, and the sedimentation separation section has its bottom located below the bottom of the separated water retention section, with at least one side surface facing the bottom. A sludge separator is characterized in that it is inclined.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the sludge separator according to the present invention, in which 10 is a sedimentation separation section, 11 is a slurry population, and 1
2 is a sludge discharge port, 2 is a separated water retention part, 21 is a ripple prevention plate, 22 is an overflow gutter for adjusting the water level, 2 is a strainer, 1 is a separated water outlet, and 5 is a baffle plate.

A slurry population 11 is provided in the upper part of the sedimentation separation section 10,
Four sludge discharge ports 12 are provided at the bottom 13 of the sludge discharge port 12, and the sludge discharge ports 12 have a water drain 14. In addition, the sedimentation separation section 10 has a side surface 15 where the bottom surface of the separated water retention section is inclined toward a bottom surface 13 located at a lower part.
has.

The ripple prevention plate 21 is provided to protrude from the inner surface of the upper part of the sludge separator, and prevents the slurry introduced from the slurry population 11 from ripples and foaming, and prevents the sludge in the slurry from floating.

Overflow gutter 2 for water level adjustment is added to the separated water retention area.
2 is provided, and a separate water loss is provided via a strainer directly below the water level maintained by the overflow device. The strainer n is installed upright on the bottom of the separated water retention section to prevent floating sludge in the separated water from flowing out into the separated water outlet loss.

The baffle plate 5 is installed on the bottom surface of the separated water retention section so as to be inclined toward the ripple prevention plate 21 as shown in the figure, and prevents the sludge from moving from the sedimentation separation section 10 to the separated water retention section. .

Although FIG. 1 shows an embodiment in which only the side surface 15 is sloped, the present invention is not limited to this, and the other side surfaces of the sedimentation separation section may also be sloped.

In the sludge separator of the present invention constructed as described above, the slurry produced in the water washing process is introduced from the slurry population 11 to the sedimentation separation section 0. The slurry is prevented from rippling by the undulation prevention plate 2, and the sludge is sedimented and separated. The sedimented and separated sludge is
It is deposited on the bottom surface 13 and side surfaces 15. At this time, the baffle plate 5
This prevents the sludge raised by convection in the sedimentation separation section 10 from flowing toward the separated water retention section.

The slurry from which the sludge has been sedimented and separated flows into the separated water retention section side through the separated water and the gap 27 between the ripple prevention plate 21 and the baffle plate z5, and the floating sludge mixed in is removed by the strainer, and the slurry is separated. From the water outlet, the water is sucked into the rinsing pump and supplied as rinsing water to the rinsing spray. Here, the overflow gutter maintains a predetermined water level.

-1 The sludge that accumulates at the bottom of the sedimentation separation section 1 () is
The sludge can be discharged and removed from the sludge discharge port 12.

Note that the water drain 14 is used to drain water in the sedimentation separation section 10 when discharging and removing sludge.

f. Effects of the Invention The sludge separator of the present invention reduces the amount of time that sludge migrates to the separated water retention section by providing a baffle plate, and positions the separated water outlet at the upper part of the separated water retention section. Coupled with this, the amount of sludge mixed into the separated water that is recirculated to the washing process is reduced, and sludge accumulates inside pipes, etc.1
The interior of the machine is not clogged, and the quality of the products being washed with water is reduced compared to conventional machines.

7-' Furthermore, it is easy to clean and remove the sludge accumulated in the sedimentation separation section, and the time and labor required for cleaning can be saved.

Further, the sludge separator of the present invention can be used as a wastewater treatment device in a degreasing and washing process, and can separate and remove garbage, unnecessary materials, etc., and can remove unnecessary solids from wastewater.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the sludge separation device of the present invention, and FIG. 2 is a diagram showing a conventional sludge electricity distribution 1. 10...Sedimentation separation section, 11...Slurry population, 12...Sludge discharge port, 15...
... Sloped side surface, addition ... Separated water retention section, 2
1... Ripple prevention plate, ρ... Overflow gutter, Otsu... Strainer - 1 Sae... Separated water outlet, 5... Obstruction Board. 8-

Claims (1)

[Claims] The sludge separator has a sedimentation separation section and a separated water retention section formed by a ripple prevention plate protruding downward from the upper inner surface of the sludge separator, and the sedimentation separation section has a slurry population in the upper part and a sludge discharge port in the lower part. The separated water retention section has:
In a sludge separator having a water level adjustment section and a separated water outlet, the separated water outlet is disposed at a position close to the water level surface maintained by the water level adjustment section, and a baffle plate is provided upright from the bottom of the separated water retention section. The sludge separator is characterized in that the bottom surface of the sedimentation separation section is located below the bottom surface of the separated water retention section, and at least one of its side surfaces is inclined toward the bottom surface.