JP2549854Y2 - Sedimentation separation device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sedimentation / separation apparatus for sedimenting and separating sludge in a slurry into a hopper body and then smoothly discharging the sedimented sludge from a lower portion of the hopper body.

[0002]

2. Description of the Related Art As shown in FIG. 2, for example, as shown in FIG. The lower end is a pinch valve 2 and a discharge pipe 12
Discharge mechanism. The hopper body 2
In the approximate center of 0, a roof-type dust-containing gas introduction hood 18 having an open lower portion is provided. The lower part of the wall forms an S-shaped impeller 14. The dust-containing gas suction port 15 is provided at a position inside the hood 18. Further, an exhaust port 16 of the gas after collecting dust is connected to an upper portion of the hopper body 20.

In the above-mentioned dust collector, the dust-containing gas is guided from the suction port 15 into the introduction hood 18, and the S-shaped impeller 1
4, the dust in the dust-containing gas is taken into the dust collection water and discharged from the discharge pipe 12 through the pinch valve 2. The water level in the dust collection water storage unit 13 is kept constant by a receiving / draining mechanism (not shown). The clean gas after the dust removal is discharged from the discharge port 16.

In such a conventional funnel dust collector, dust easily adheres to the inner wall of the dust collecting water accommodating section 13 and the inner wall of the dust-containing gas introducing hood 18, and the dust is separated and becomes a lump of dust to close the pinch valve 2. If the pinch valve 2 is clogged, the water level of the dust collection water fluctuates and the optimum water level cannot be maintained.
As a result, dust collection efficiency is reduced, and as a result, uncleaned exhaust gas is radiated, thereby causing a problem of environmental pollution. Further, if the pinch valve is frequently clogged, the cleaning work increases, and the work load increases.

To prevent this, Japanese Utility Model Publication No. 59-873 discloses
No. 7, as proposed, a gas ejection nozzle is arranged above the inlet of the discharge pipe 12 connected to the lower end of the hopper body 20, and by injecting gas from this nozzle, dust is generated in the hopper body 20. There are those that deposit on the lower inner wall to prevent adhesion and growth and solidification, and to prevent clogging of the valve.

[0006]

[Problem to be solved by the present invention]
In Japanese Patent Application Laid-Open No. 9-8737, it is possible to prevent dust from solidifying and solidifying in the vicinity where the gas ejected from the gas ejection nozzle is rising, but there is no effect of the ejected gas in other portions. Dust was deposited and solidified, and the discharge mechanism was clogged as described above, which was not sufficient. An object of the present invention is to provide a means for effectively preventing clogging of a dust in a discharge mechanism having a pinch valve for discharging dust settled at a lower portion of a dust collection water storage hopper.

[0007]

According to the present invention, an automatic valve for periodically opening a pinch valve of a discharge mechanism is arranged, and a vibrator attached to an outer surface of a hopper in synchronization with a timing when the pinch valve is fully opened. The present invention provides a sedimentation / separation device that relatively forcibly discharges the accumulated dust that easily adheres to the lower portion of the dust collection water storage hopper by driving the hopper.

[0008]

[Function] Dust settling in the dust collection water storage hopper is discharged together with the drainage from the discharge pipe, but dust contained in the dust collection water in the upper part of the hopper must be pinched because the water level in the hopper must be kept constant. Settles in a state close to natural settling because it is restricted by the valve.

In the lower part of the hopper containing dust collected water, which is close to the discharge part, only the central part of the hopper is discharged together with the main stream of drainage, but the dust deposited on the side wall of the hopper adheres and solidifies and grows. Go. During the growth process, muddy or solid dust with poor fluidity causes clogging of the discharge mechanism.

On the other hand, according to the present invention, an automatic opening / closing mechanism is added to a pinch valve provided at a lower portion of the dust collecting water storage hopper, so that the adjustable closing and the full opening can be repeated at regular time intervals. By installing a vibrator that operates in conjunction with it, dust that accumulates in the dust collection water storage hopper can be effectively discharged before it is solidified, preventing the dust clogging of the discharge amount adjustment mechanism and ensuring stable equipment operation Becomes

[0011]

FIG. 1 is a diagram showing an embodiment of the present invention.
In FIG. 1, reference numeral 1 denotes a dust collection water storage hopper in which dust sucked from a dust generation location is taken into the dust collection water, and is provided at a lower end of the dust collection water storage unit 13 below the dust collection water storage hopper 1. The settling dust in the dust collection water accommodating portion 13 is discharged by repeating the closing and full opening of the pinch valves 2a to 2c with air cylinders.

The vibrators 3a to 3c are attached to a funnel-shaped side wall 11 of the dust collecting water accommodating portion 13, and operate when the pinch valves 2a to 2c with air cylinders are fully opened.
Its frequency is 2100 VPm. Reference numeral 4 denotes a switching solenoid valve for driving the pinch valves 2a to 2c with air cylinders, and reference numeral 5 denotes a driving air pipe. Pinch valves 2a-2c with air cylinder and vibrators 3a-3c
Is controlled by signals 7 and 8 from the vibrator controller 6.

A signal 7 is an operation signal of the vibrators 3a to 3c, and a signal 8 is a pinch valve 2a with an air cylinder.
2c, the pinch valves with air cylinders 2a to 2c are fully opened at the same time as the operation of the vibrators 3a to 3c, and the vibrators 3a to 3c are stopped after a predetermined time, and thereafter, the pinch valves with air cylinders 2a 2c is returned to the closed state .

This operation is repeatedly performed in a cycle depending on the number of the collected water storage units 13. Vibrators 3a-3c
Operating time 9 and pinch valve 2a-2 with air cylinder
The fully open time 10 of c can be arbitrarily set and changed according to the dust accumulation state and the drainage amount of the dust collection water storage unit 13.

As a result, the dust accumulation and solidification in the dust collecting water accommodating portion 13 does not progress, and dust clogging in the discharge mechanism can be prevented, and stable equipment operation can be performed without impairing the function of the dust collecting device. Becomes

[0016]

According to the present invention, (1) dust clogging of the discharge mechanism is eliminated, and labor for cleaning can be saved.
(2) Fluctuation in the water level of the dust collection water hopper due to dust clogging of the discharge mechanism is eliminated, which leads to solving the problem of the working environment at the dust collection point and environmental pollution due to exhaust gas.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention.

FIG. 2 is an explanatory view of a conventional funnel dust collector.

[Description of Signs ] 1 Dust collecting water hopper 2 Pinch valve 3 Vibrator 4 Switching electromagnetic valve 5 Air piping 6 Vibrator control device 7 Vibrator operation signal 8 Pinch valve open / close signal 9 Vibrator operation time 10 Pinch valve fully open time 11 Hopper side wall 12 Discharge Pipe 13 Dust collection water storage unit 14 S-shaped impeller 15 Dust-containing gas suction port 16 Dust-collection gas discharge port 18 Dust-containing gas introduction hood 20 Hopper body

Claims (1)

(57) [Scope of request for utility model registration] A hopper body for introducing slurry and settling and separating sludge in the slurry is provided, and a discharge pipe for discharging sludge settled in the hopper body is provided by periodically opening a valve. in precipitator provided on a lower portion of the hopper main body, Rutotomoni provided vibrators in the lower side wall of the hopper, the Bi
The vibrator operates when the valve is fully opened ,
Vibrator control device configured to stop when
Is connected to a vibrator via the valve .