KR20020064235A - Apparatus seperating and cleaning for deposit - Google Patents

Abstract

PURPOSE: An apparatus separating and cleaning of grit which discharges adulteration by removing dehydration after separating adulteration and grit and returns turbid water to settling basin and discharges grit into grit chamber after cleaning by injecting water with high pressure is provided to improve the efficiency of grit cleaning. CONSTITUTION: The apparatus comprises a recovery means which transfers grit at the bottom of grit chamber, a perforated drum screen(4) which separates adulteration and grit, an adulteration compressor(14) which compresses adulteration for removing water and discharges that, a grit cleaner, a cyclone which returns turbid water to grit chamber and discharges grit, a transfer means which transfers discharged grit into deposit tank. A bucket conveyer(2) is used for the recovery means and non-pivot screw conveyer(11) is used for the transfer means. The grit cleaner is composed of cleaning hopper(6), pipe, slot nozzle(7), ejector(9) and pump(8).

Description

Sedimentation cleaning separator {APPARATUS SEPERATING AND CLEANING FOR DEPOSIT}

The present invention relates to a sedimentation washing and separating apparatus, and more particularly, it receives saliva sediment settled in the sedimentation basin and receives the sediment and sediment, and the sediments are compressed and removed by removing water, and the sediment is sprayed with high pressure water. After cleaning by passing through a cyclone, the cleaning turbidity is returned to the settlement and the sediment is discharged to the reservoir, and the cleaning effect is excellent because the cleaning is carried out by the whirlwind flow. There is no spread of odor, and since the devices are configured independently, it is possible to replace and repair only the parts of the relevant parts.

Recently, many sewage, wastewater, and sewage treatment plants are being constructed to save the environment, and inevitably installed in these treatment plants are settled lands for removing sediments that are included in various wastewater.

The sediment paper maintains a slow flow rate and attracts various sediments (dirt, sand, metals, etc.) contained in the influent to fall to the bottom of the sediment and discharges it to the outside of the sediment with a chain bucket. The backs have been separated and disposed of in landfills.

Conventional cleaning techniques have been cleaning by spraying water with a nozzle while continuously depositing sediment into the collecting container and rotating the inclined chain scrap wave conveyor, but the cleaning ability is poor, but the blade of the scrap wears well and the foreign matter is between the scraps. If it is pinched, the chain may be broken and at the same time, the odor caused by the decay of sediment between the various connection parts of the conveyor spreads and worsens the surrounding environment.

In addition, as it is washed by simply spraying with water while scraping up with an inclined chain scrap wave conveyor, the less washed sediment is washed out due to its weak cleaning power. Soil, organic matter, etc. are buried in sand, fruit seeds, etc. In terms of sewage treatment, the loss of soil or organic matter causes the loss of good nutrients in which microorganisms live in the aeration tank at the end of the sedimentation basin, which leads to poor nutrients throughout the sewage treatment plant, thus adversely affecting the sewage treatment. do.

Therefore, in order to improve the conventional technology, there have been many efforts such as increasing the pressure of the washing water spray nozzle or increasing the amount of washing water, but there has been a slight improvement because there is no fundamental method change, but it is not satisfactory.

In order to overcome this problem, Korean Registered Utility Model No. 142646 (Application No. 20-1995-29144) has developed a sedimentation screening politics integrated with a settlement.

However, the conventional sedimentary sorting and washing apparatus is not easy to open and repair because the devices are formed integrally with the settling basin, the organic matter attached to the settling by simply washing by spraying the washing water and air to the sorting and washing tank There was a problem such as not being washed.

The present invention is to solve the problems of the prior art as described above, by removing the failure factors caused by mechanical transport by cleaning, transporting, separating all the sediment by the force of the water flow, with a strong rotational force of the water whirlwind The fine soil and organic matters attached to the sediment are perfectly cleaned and the turbid liquid from which the cleaned organic matter and soil are released is returned to the aeration tank at the end of the sewage treatment plant sedimentation tank through the cyclone upper discharge port to prevent empty nutrients in the entire operation of the sewage treatment plant. It is an object of the present invention to provide an economical settling cleaning separator that separates only sediments, such as sand and fruit seeds, thereby reducing the landfill cost of sediment.

1 is a conceptual diagram of the entire process in one embodiment according to the present invention.

Figure 2 is a detailed view of a semi-circular inclined chute in one embodiment according to the present invention.

Figure 3 is a detailed view of the perforated drum screen in one embodiment according to the present invention.

Figure 4 is a detailed view of the inclined slot nozzle and ejector in one embodiment according to the present invention.

5 is a detailed view of a cyclone in one embodiment according to the present invention.

Figure 6 is a detailed view of the compact compactor in one embodiment according to the present invention.

*** Explanation of main parts of drawing ***

Bucket Conveyor 4. Perforated drum screen 6. Wash bin

Inclined Slot Nozzle 8. Pump 9. Ejector

10. Cyclone 11. Shaftless Conveyor 14. Squeeze compactor

The sedimentation separation and washing apparatus according to the present invention includes a lifting means for lifting and transporting the sediment settled in the lower part of the settlement, the perforated drum screen for receiving the sediment transferred by the lifting means, and separating it into a contaminant and a sediment, and the perforation. A compaction press to remove moisture by squeezing the impurities separated by the drum screen, and to discharge the impurities, a sediment cleaner for receiving and washing the sediment separated by the perforated drum screen, and a washing turbidity discharged from the sediment cleaner. And a sediment flowing in the tangential direction and centrifuged to return the washing turbidity to the settling basin, and to discharge the sediment, and to transfer the sediment discharged from the cyclone to the settling basin.

In the sedimentation separation and washing apparatus according to the present invention, the lifting means is preferably made of a bucket conveyor in order to separate the sedimentation basin, and the transfer means is preferably made of a shaftless screw conveyor in order to discharge the water separated from the sand into the shaft hole. .

The sediment cleaner is a hopper-type washing barrel with a gentle inclination of the bottom, a tube formed in the upper center of the washing tube, and a lower end of the tube to generate a tornado flow so as to completely desorb organic matter attached to the sediment. And an inclined slot nozzle attached to form an inclination with the normal line toward the cleaning container, an injector formed at an upper end of the tube, and a pump for supplying high pressure water to the inclined slot nozzle and the ejector. It is desirable to.

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

1 is a conceptual diagram of the entire process in one embodiment according to the present invention.

Referring to Figure 1, the sediment precipitated in the sedimentation basin (1) of the sewage treatment plant is pumped up with the sewage to the bucket conveyor (2) to be discharged to the outside of the sedimentation basin, the lower portion of the bucket (2) (position where the sediment falls) There is installed a semi-circular inclined chute (3) so that the sediment can go down so that the sediment slips and falls to the perforated drum screen (4). In order for the precipitate to pass smoothly through the semi-circular inclined chute (3), it is preferable to spray water on the top of the semi-circular inclined chute (3). A detailed view of the semicircular inclined chute 3 and the nozzle 17 for spraying water onto the semicircular inclined chute 3 is shown in FIG.

The punching drum screen 4 will be described with reference to FIG. In the perforated drum screen (4), the drum is perforated (hole is drilled). Among the sediment that slides through the perforated drum screen (4), large contaminants such as Schiropol and wood do not pass through the perforated drum screen (4). Small, soil, organic matter, sand, fruit seeds and the like are passed through the inclined chute (5) of the lower perforated drum screen (4) into the conical cleaning tank (6). In order for the precipitate to smoothly pass through the perforated drum screen 4, it is preferable to spray water inside the perforated drum screen 4.

With reference to FIG. 4, the washing cylinder 6 is demonstrated. The inclined slot nozzle 7 is located in the center of the washing tub 6. The inclined slot nozzle 7 is supplied with the high pressure water discharged from the pump 8 provided outside. The inclined slot nozzle 7 is formed such that the injection port is inclined with the normal line of the cleaning cylinder 6. A pipe (not shown) is formed at the center of the inclined slot nozzle 7 and drawn out to the outside of the washing tub 6, and an ejector 9 is attached to the other end of the pipe (not shown). . The pump 8 also supplies high pressure water to the ejector 9. The high pressure water discharged through the inclined slot nozzle 7 causes a strong whirlwind inside the scrubber 6, and the precipitate is washed with water whirl and rotated. The washed precipitate is collected by the vortex flow into the center of the washing vessel 6, and the precipitate collected at the center of the washing vessel 6 is sucked by the ejector 9 together with water, and the discharge port of the ejector 9 is discharged. Inflows into the tangential inlet 21 of the cyclone 10 installed at the rear end with a strong force at.

The cyclone 10 will be described with reference to FIG. 5. Inside the cyclone 10, the sediment and the water are rotated as fast as the inflow rate at the tangential inlet portion 21, and the secondary cleaning is performed. The cyclone 10 is inclined of the hopper 22 is urgently formed, the heavy sedimentation such as sand, seeds rotating in the cyclone 10 hit the cyclone wall by centrifugal force and then ride the wall hopper 22 After gathering to the lower portion of the cyclone (10) through the screwless conveyor (11) installed in the sedimentation collector (12), the turbidity mixed with soil, organic matter and the like, the cyclone upper discharge pipe (23) It is returned to the aeration tank (not shown) located at the rear end of the sedimentation basin 1 and / or the sedimentation basin 1 of the sewage treatment plant. At this time, some of the turbid liquid discharged from the discharge port 23 of the cyclone 10 may be used as the cleaning liquid of the semi-circular inclined chute 1 and the perforated drum screen 4. In the shaftless screw conveyor 11, the screw is rotated by the motor 24. The shaftless screw conveyor 11 is configured such that the discharge port (not shown) is discharged to the high side, the moisture is discharged to the shaft hole (not shown) of the shaftless screw conveyor (11). The sedimentation collected in the sedimentary reservoir 12 is not a problem because the organic matter is not attached immediately, there is no problem, may be used as aggregate.

On the other hand, the scum pollut filtered from the punching drum screen (4), such as timber, is transported to the concave compactor 14 and compressed, with reference to Figure 6 will be described with the compact condenser 14. The scum pollut, filtered wood, etc. filtered in the perforated drum screen (4) is introduced into the contaminant input hopper 25 of the contaminant compactor 14 through the contaminant discharge chute (13). The contaminants introduced into the contaminant injection hopper 25 are compressed and conveyed by the concave constriction screw 27, and the condensate constriction plate 28 is pressed in earnest to remove moisture. The removed water is discharged from the compressed water outlet 29, and the contaminant is discharged from the impurities discharge port (30). The compact presser 14 may be configured such that the diameter of the compact press screw 27 and the cylinder (not shown) decreases as it progresses to the right. The fines discharged through the fines discharge port 30 are settled in the immersion collector 12 or the fines collector (not shown) installed by the injector 16 using the compressed air generated in the compressor 15 to generate a strong compressed air (not shown) Gathered).

Unit machines used in the present invention are now widely used, but the combination of these machines was designed as a sedimentary cleaning separation device, which completely escapes the method of washing with water while scraping up the sediment with a conventional chain scraper conveyor. , In particular, by spraying through the inclined slot nozzle (7) using high pressure water to generate a water whirlwind to wash the precipitate and strongly suctioning the cleaned precipitate through the injector (9) mounted on the inclined slot nozzle. Is first devised in the present invention.

As described above, according to the present invention, since the sediment is mechanically washed and separated from the sedimentation area after the sedimentation is spread, the sedimentation of the odor generated in the anaerobic condition of the sediment is not required, as well as the need for personnel work. It is implemented automatically without harm to health, and it can be an economical facility because the operation time can be adjusted according to site conditions.

Therefore, the sediment that has not been cleaned in the future will be cleaned and sanitized at the present time when the landfill is not directly buried. At the same time, only the sediment is removed to reduce the amount of landfill sediment, and the organic matter contained in the sediment is removed. It is expected to return to the aeration tank to supplement the nutrients of microorganisms inhabiting the aeration tank.

Claims (3)

In the sedimentation cleaning separation apparatus of the sedimentation paper, Lifting means for lifting and transporting the settled sediment in the lower part of the settlement; A perforated drum screen that receives the sediment transferred by the lifting means and separates the sediment and the sediment; A clutter compactor for compressing the clutter separated by the perforated drum screen to remove moisture and discharging the clutter; A sediment cleaner for receiving and washing the sediment separated by the perforated drum screen; A cyclone for discharging the washing turbidity and the precipitate discharged from the sediment cleaner in a tangential direction and centrifuging to return the washing turbidity to the settling basin, and discharging the precipitate; And a feeding means for transferring the sediment discharged from the cyclone to the sedimentation container. The method of claim 1, The lifting means is made of a bucket conveyor, The transfer means is settled cleaning separator characterized in that the shaftless screw conveyor. The method according to claim 1 or 2, The sediment cleaner, The hopper type washing pail with a gentle slope of the bottom, A tube formed at an upper center of the washing tub, An inclined slot nozzle formed at a lower end of the tube and attached to form an inclination with a normal to the cleaning tub; An ejector formed at an upper end of the tube, And a pump for supplying high pressure water to the inclined slot nozzle and the ejector.