KR101169417B1 - Sealed type septic tank - Google Patents

Abstract

PURPOSE: A sealed type septic tank is provided to prevent the waste of energy and the occurrence of negligent accidents by preventing the leakage of gas and the generation of bad odor. CONSTITUTION: A sealed type septic tank includes a storing bath(100), a filtering plate, a rotary cylinder, a cover(200), a plurality of washing nozzles and drying nozzles, a draining valve, a solid part discharging pipe(130), a wastewater discharging pipe(140), and a driving unit. The upper side of the storing bath is opened. The filtering plate is a screen which separates liquid components and solid components. A dropping hole is formed at a part of the filtering plate. The rotary cylinder is partially inserted in the filtering plate. A plurality of transferring plates is arranged in the rotary cylinder. The cover covers the rotary cylinder and is flange-combined with the upper side of the storing bath to be sealed. An inlet is formed at a part of the upper side of the cover. The washing nozzles and drying nozzles are successively installed to the radial direction based on the inlet. The draining valve is installed at the bottom of the storing bath. The solid part discharging pipe is slantly installed around the storing bath. The solid part discharging pipe is arranged at the lower side of the dropping hole and collects dropped solid parts. The wastewater discharging pipe is slanted installed around the storing bath. The wastewater discharging pipe is installed at a position which is higher than the bottom of the storing bath. The driving unit periodically rotates the rotary cylinder as much as a pre-set angle.

Description

Sealed Septic Tank {SEALED TYPE SEPTIC TANK}

The present invention relates to a hermetically sealed septic tank, and more particularly, a septic tank installed to be sent directly to a terminal treatment plant without performing water treatment in a septic tank. A closed septic tank has been improved for the crushing of filtered solids.

In general, a septic tank refers to a tank for purifying manure.

Such a septic tank has an inlet through which manure is introduced, and an outlet through which manure purified from the tank is discharged, and a vent for discharging air inside the tank is provided.

In addition, it is a general structure that the opening and the lid for discharging the manure filled in the septic tank are formed in the upper portion.

Such a septic tank is usually formed in a concrete structure in a large building, etc., and is usually formed in a synthetic resin tank in a small general home or office.

The septic tanks currently used include manure septic tanks that process manure only and merged septic tanks that process both manure and household wastewater at the same time.In consideration of the installation area and treatment efficiency of septic tanks, anaerobic manure septic tanks were used in the early stages. As the discharged water cannot meet the standard, it has been converted to aerobic method. In addition, some areas require more complex treatment facilities, such as the removal of nutrients.

In Korea, interest in septic tanks has been highlighted since 1968. In 1997, the merger and purification tank installation system was introduced for the advanced treatment of domestic sewage generated outside the sewage terminal treatment area (Revised 1997.3.7 Act No. 5301). For example, by combining the flush toilet wastewater and general wastewater, the biochemical oxygen demand (BOD) should be treated as high as 20mg / ℓ or less. It has been mandatory to install food service, lodging and bathing establishments near rivers, lakes and seas since July 1997.

On the other hand, in the case of a single septic tank, aerobic treatment and anaerobic treatment are specified in the septic tank structural standards, but pre-installed septic tanks are mainly decayed tanks, impregnated tanks, and sprinkled decayed tanks that rely on anaerobic treatment. It began to spread.

Here, the sole septic tank is a device for treating only the filthy water from the flush toilet, and the sole septic tank is smaller than the combined septic tank and the septic tank, and technically, in terms of the concentration of sewage and its composition, especially nutrition balance, etc. There is a limit to the purification capacity. Therefore, the single septic tank is not applied to large-scale facilities with a large amount of sewage. In principle, the septic tank is applied to a small one such as a house.

However, since the disclosed conventional septic tank, in particular, the single septic tank is a structure that stores both sewage and manure together, the volume must be large, and thus has a disadvantage of occupying a relatively large installation area.

In addition, since the lid is also a simple detachable type, it is difficult to maintain airtightness, and the smell is leaked due to fluctuations in the internal pressure, causing a bad odor and it is difficult to manage.

In addition, since it was designed at the level of a simple storage facility that does not consider the environment, there is a high risk of environmental pollution due to the indiscriminate discharge of unpurified sewage, difficulty in management, and in some cases, poisoning with gas. .

In particular, in the case of the septic tank used to be transferred directly to the terminal treatment plant without water treatment, the solids are not filtered well, thereby increasing the treatment cost and increasing management difficulties.

The present invention was created in view of the above-mentioned problems in the prior art, and has been created to solve this problem, and has a completely sealed structure to eliminate odors and to reduce the volume by separating wastewater and solids through a fully automatic design. Its main purpose is to provide a closed septic tank that can lower the market share, reduce the burden of treatment at the end-treatment plant by separating the solids with ease of management and lowering the risk of safety accidents.

The present invention provides a means for achieving the above object, the upper cylindrical storage tank; A screen which is inserted and seated in an opening of the reservoir to separate a liquid component and a solid component, a filter plate having a drop opening formed on a portion thereof; A rotating cylinder seated in a form inserted into the filtering plate and rotatably axially fixed therein, and having a plurality of transfer plates radially partitioned therein; A cover coupled to the upper surface of the reservoir in a flange shape to cover the rotating cylinder, the cover having an inlet formed therein; A plurality of washing nozzles and drying nozzles sequentially installed at intervals radially around the inlet; A drain valve installed at the bottom of the reservoir; A solid discharge pipe disposed on a portion of the circumference of the storage tank and disposed below the drop opening to separate and collect the dropped solids into a container; A sewage discharge pipe which is installed at a part of the circumference of the reservoir and is installed at a predetermined height from a bottom surface of the reservoir to guide the stored sewage to overflow; It is installed on the upper surface of the cover, coupled to the rotating shaft of the rotating cylinder drive means for periodically rotating the rotating cylinder by a predetermined angle; provides a sealed septic tank comprising a.

At this time, the transfer plate is characterized in that the four equally divided by 90 ° in the circumferential direction is installed.

In addition, the bottom surface of the reservoir is characterized in that the blower pipe for supplying high-pressure air from the outside to periodically aeration is further installed.

In addition, the upper end of the solid discharge pipe is characterized in that it is formed in a hopper shape larger than the drop opening to facilitate the storage of the solid falling from the drop opening.

In addition, the drive means, the second driven gear fixed to the rotating shaft of the rotary cylinder, the first driven gear is coupled to the second driven gear and having a larger size, and the first driven gear is coupled It is also characterized by a drive gear that receives the driving force directly from the drive source.

Furthermore, the second driven gear is a spur gear, the first driven gear is a worm gear, and the driving gear is a worm.

In addition, the filter plate is characterized in that the screen of the form of a plurality of holes perforated at a predetermined interval on the mesh screen or plate.

In addition, a groove is formed in the bottom surface of the transfer plate, the elastic plate is inserted into the groove, the inserted auxiliary plate is fixed to the bolt to increase the adhesion between the transfer plate and the filter plate to minimize the residual solids There is a characteristic.

The present invention provides the following effects.

First, since sewage and solids are separated and stored, the volume can be reduced, thereby minimizing the installation area.

Second, almost no odor is generated because of the completely sealed structure.

Third, it is possible to secure a comfortable septic tank facility and to prevent safety accidents because there is no gas leak.

Fourth, it is easy to manage due to the fully automatic design.

Fifth, it is possible to prevent energy waste by designing to be driven when needed.

Sixth, the structure is simple and easy to maintain.

Seventh, the complete removal of solids can reduce the processing burden at the terminal treatment plant.

1 is an exemplary perspective view of a hermetic septic tank according to the present invention.
2 is an exemplary exploded perspective view of a hermetic septic tank according to the present invention.
3 and 4 are exemplary partial enlarged views of the hermetic septic tank according to the present invention.
5 is an exemplary view showing a modification of the filter plate constituting the hermetic septic tank according to the present invention.
Figure 6 is an enlarged view of the main portion showing a modification of the transfer plate constituting the hermetic septic tank according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary perspective view of a hermetic septic tank according to the present invention, FIG. 2 is an exemplary exploded perspective view of the hermetic septic tank according to the present invention, and FIGS. 3 and 4 are exemplary partial enlarged views of the hermetic septic tank according to the present invention. .

As shown in Figures 1 and 2, the hermetic septic tank according to the present invention includes a cylindrical reservoir 100 with an open top.

At this time, the open top of the reservoir 100 is a flange (not shown) is formed along the rim, the flange is seated on the gasket 110 is configured to have a complete sealing force when assembling the cover 200.

In addition, a drain is formed in the center of the bottom surface of the storage tank 100 through the drain, and a drain valve 120 for controlling the discharge of the precipitate deposited on the bottom is installed as shown in FIG. 4.

In addition, as shown in Figures 1, 2 and 4, a portion of the circumference of the storage tank 100 through the solid discharge pipe 130 is inclined downward in the downward direction, the upper end of the solid discharge pipe 130, that is An end exposed to the inside of the reservoir 100 is provided with a hopper 132 having a relatively wider size than the drop opening 172 to easily accommodate the falling solids.

In addition, the container 160 is disposed at the lower end of the solid discharge pipe 130.

In this case, the container 160 may be formed in a pack form to facilitate collection.

Furthermore, a blower tube 150 is disposed in the interior of the reservoir 100 in close proximity to the bottom surface, and the air is blown strongly through the blower tube 150 to aeration the inside to mix and stir the sediment and the sewage together. Can be.

At this time, the high-pressure wind supplied to the blower tube 150 may be supplied from a blower (not shown) installed outside.

In addition, a sewage discharge pipe 140 is further piped to a portion of the outer circumferential surface of the storage tank 100, wherein the sewage discharge pipe 140 is positioned at a predetermined height from the bottom surface of the storage tank 100 so that the stored sewage overflows. Particularly preferred is to be configured to be discharged.

In addition, by installing a cutter pump further inside the reservoir 100 can be configured to be discharged by crushing the solid material of 10mm or less passed through it without being filtered by the filter plate 170, for this purpose the cutter pump is specifically shown Although not, it may be installed on the lower filter plate 170.

On the other hand, a circular filter plate 170 is seated on the open upper surface of the reservoir (100).

The filter plate 170 has a flange 174 is formed on the rim so that the filter plate 170 is partly inserted into the opening of the reservoir 100.

Therefore, the flange 174 faces the flange formed at the edge of the opening of the reservoir 100 in the state where the lower portion of the filter plate 170 is inserted into the opening of the reservoir 100. The gasket 110 is in close contact with each other in the state of being interposed therebetween, thereby ensuring close sealing property.

In addition, the filter plate 170 is a kind of screen, and has a mesh that can filter solids having a size of about 8 to 12 mm, particularly preferably 10 mm.

At this time, any part of the fan shape that divides the circular filter plate 170 into four quarters with respect to the center of the circle is opened to form the drop opening 172.

In addition, when the filter plate 170 is fixed, the drop port 172 should be disposed to be located directly above the hopper 132 described above.

Here, a brush or comb-shaped scraper on the bottom surface of the transfer plate 184 to sweep between the mesh of the filter plate 170 in order to more completely remove the solids caught between the filter plate 170. (Not shown) may be further attached.

As another example, the filter plate 170 may be formed in a simple perforated shape as shown in FIG. 5.

That is, a plurality of holes having a diameter of 10 mm on the disc may be drilled at regular intervals to have the screen function described above.

In this case, in order to increase the adhesion between the filter plate 170 and the transfer plate 184, grooves 185 are recessed in the bottom surface of the transfer plate 184 as shown in FIG. Likewise, the auxiliary plate 187 having elasticity may be inserted and bolted to the bolt hole 189 formed in the transfer plate 184.

On the other hand, as shown in Figure 3, the upper portion of the filter plate 170 is mounted with a rotating cylinder 180 having a predetermined height.

In this case, the rotary cylinder 180 may be partially inserted into the upper surface of the filter plate 170 to secure stability as well as to maintain sealing property.

In addition, a cylindrical boss 182 having the same height is provided at the inner circumference of the rotating cylinder 180, and divides the circumference into quarters between the outer circumferential surface of the cylindrical boss 182 and the inner circumferential surface of the rotating cylinder 180. Four transfer plates 184 are connected.

At this time, the transfer plate 184 equally divides the filter plate 170 into four equal parts, and in the treatment process according to the present invention, the transfer plate 184 sequentially filters in equal parts in the counterclockwise direction based on the dropping hole 172 described above. When the solids, such as sewage and manure, are made together with a space, a washing space, and a drying space, a manure action is primarily performed in the manure space, and the rotating cylinder 180 is counterclockwise according to a set condition (periodical, selective, etc.). After washing and drying the sewage and manure while rotating in increments of 90 °, it is operated to drop through the drop opening 172.

Here, the rotating cylinder 180 is merely an exemplary embodiment to be rotated counterclockwise as a preferred embodiment, and may be configured to be rotated clockwise according to design specifications.

In addition, the cylindrical boss 182 is rotatably coupled to the rotating shaft 186 is configured to be rotated together with the cylindrical boss 182, the lower end is rotatably supported at the center of the filter plate 170, The upper end is integrally fixed to the center of the second driven gear 240.

In this case, since the second driven gear 240 is located on the upper surface of the cover 200 described above, the upper end of the rotating shaft 186 passes through the cover 200 and then is coupled to the second driven gear 240. Will be.

On the other hand, the cover 200 is formed in a cylindrical shape having a cover flange 202 coupled to the flange 174 and open downward.

In addition, even when the cover flange 202 and the flange 174 are coupled, although not shown in the drawing, the gasket is preferably interposed.

Furthermore, the inlet 210, the washing nozzle 220, the drying nozzle 230 are respectively installed so as to correspond to the space partitioned by the moving plate 184 described above by dividing the cover 200 in radial directions. The inlet 210 is formed to protrude to the upper surface of the cover 200, the washing nozzle 220 is provided with at least one, is connected to an external water supply source, at least one drying nozzle 230 It is provided as above but connected to an external air supply.

At this time, it is preferable that the inlet 210 includes a connector (not shown) so that it can be easily connected to the sewage pipe installed in each site.

Therefore, every time the rotary cylinder 180 is rotated by 90 °, the introduced sewage and manure are washed and dried, and then dropped through the drop opening 172.

In addition, a first driven gear 250 is engaged with the second driven gear 240 to rotate the rotating cylinder 180 in a step, and a driving gear is connected to the first driven gear 250. 260 is tooth coupled, the drive gear 260 is coupled to a drive motor (not shown), the drive motor is to be controlled by a control means (microprocessor or PLC) not shown.

In this case, it is preferable that the second driven gear 240 is formed smaller than the first driven gear 250 to induce a large operation even with a small force. In consideration of the operating characteristics, the second driven gear 240 is a spur gear. In particular, the first driven gear 250 is preferably a worm gear, and the driving gear 260 is composed of a worm.

In addition, other power transmission means such as chains, belts, and ropes may be used in addition to the power transmission means such as the above-described gears, and in the case of a motor, various types of geared motors, servomotors, air motors, and the like may be used. .

The present invention having such a configuration has the following operational relationship.

First, sewage or manure (including solids) is introduced through the inlet 210.

Then, the input is placed in the manure space on the filter plate 170 divided into four by the transfer plate 184.

At the same time, the material having a smaller size than the filter plate 170 falls through the filter plate 170, and the material larger than the screen of the filter plate 170 remains filtered.

Thereafter, the rotation control of the rotation cylinder 180 is made according to the setting conditions. The setting conditions may be changed, and for convenience of description, the description will be limited to the period control by the timer.

For example, when a predetermined time is reached, a driving motor (not shown) is driven, and the driving force is transmitted to the rotating shaft 186 via the driving gear 260, the first driven gear 250, and the second driven gear 240.

Then, the rotating shaft 186 is rotated by a predetermined step, which may be a form in which the drive motor controls the rotation speed so that the transfer plate 184 can be rotated exactly 90 ° by means such as an encoder. have.

Accordingly, the filtered solids are transferred to the washing space in which the washing nozzle 220 is located, and at the same time, the washing water is sprayed through the washing nozzle 220 to wash the solids.

At this time, the liquid generated with the washing is lowered through the filter plate 170 is stored in the storage tank (100).

The solids remaining after the washing are rotated by the transfer plate 184 again after a predetermined time, and are transferred to the drying space in which the drying nozzle 230 is located. At the same time, high pressure air is sprayed to dry the solids.

After this process, the final solids are dropped through the drop opening 172, and the dropped solids are collected to the container 160 along the solid discharge pipe 130 through the hopper 132.

In this case, when the cutter pump described above is installed, the solid material that has passed through the filter plate 170 may be forcibly crushed even smaller, and thus the filtration efficiency may be further improved.

That is, it is possible to reduce the cost of treating the solids in the terminal treatment plant, and achieve the efficiency of management.

On the other hand, filthy water or liquid (including washing water) that has passed through the filter plate 170 is filled from the bottom surface of the storage tank 100, and when a predetermined level or more is aerated by periodically supplying air through the blower pipe 150 To stir the internal liquid and the precipitate.

During this process, when the filled sewage reaches the level of the sewage discharge pipe 140, the sewage is discharged through the sewage discharge pipe 140.

At this time, the discharged sewage or solids may be treated separately without causing environmental pollution through a separate treatment process.

In addition, the deposit generated at the bottom of the storage tank 100 for a long time can be discharged by opening the drain valve (120).

As such, the septic tank according to the present invention does not need to have a large volume because it completely separates the liquid and solid components. It is easy to do it, and there is no gas leak, so the risk of safety accident is greatly reduced.

100: reservoir 110: gasket
120: drain valve 130: solid discharge pipe
140: sewage discharge pipe 150: blower pipe
160: container 170: filter plate
180: rotating cylinder 200: cover
210: inlet 220: cleaning nozzle
230: dry nozzle 240: second driven gear
250: first driven gear 260: drive gear

Claims (8)

A cylindrical reservoir having an open top;
A screen which is inserted and seated in an opening of the reservoir to separate a liquid component and a solid component, a filter plate having a drop opening formed on a portion thereof;
A rotating cylinder seated in a form inserted into the filtering plate and rotatably axially fixed therein, and having a plurality of transfer plates radially partitioned therein;
A cover coupled to the upper surface of the reservoir in a flange shape to cover the rotating cylinder, the cover having an inlet formed therein;
A plurality of washing nozzles and drying nozzles sequentially installed at intervals radially around the inlet;
A drain valve installed at the bottom of the reservoir;
A solid discharge pipe disposed on a portion of the circumference of the storage tank and disposed below the drop opening to separate and collect the dropped solids into a container;
A sewage discharge pipe which is installed at a part of the circumference of the reservoir and is installed at a predetermined height from a bottom surface of the reservoir to guide the stored sewage to overflow;
And a driving means installed on an upper surface of the cover and coupled to the rotating shaft of the rotating cylinder to periodically rotate the rotating cylinder by a predetermined angle. The method according to claim 1;
The transfer plate is a closed septic tank, characterized in that four pieces are installed equally divided by 90 ° along the circumferential direction. The method according to claim 1;
Closed septic tank, characterized in that the blower tube for supplying a high pressure air from the outside to periodically aeration on the bottom surface of the reservoir. The method according to claim 1;
The upper end of the solid discharge pipe is a closed septic tank characterized in that formed in the hopper shape larger than the drop opening to facilitate the storage of the solid falling from the drop opening. The method according to claim 1;
The driving means may include a second driven gear fixed to the rotating shaft of the rotary cylinder, a first driven gear that is engaged with the second driven gear and has a larger size, and is engaged with the first driven gear and is driven from a driving source. Hermetic septic tank, characterized in that consisting of a drive gear that receives the driving force directly.
The method of claim 5, further comprising:
Said second driven gear is a spur gear, said first driven gear is a worm gear, and said drive gear is a closed septic tank. The method according to claim 1;
The filter plate is a closed type septic tank, characterized in that the screen of the form of a plurality of holes perforated at a predetermined interval on the mesh screen or plate. The method according to claim 1;
A groove is formed on the bottom surface of the transfer plate, and an elastic plate is inserted into the groove, and the inserted auxiliary plate is bolted to increase the adhesion between the transfer plate and the filter plate to minimize residual solids. Septic tank.

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