KR100564993B1 - Cohesion precipitation system for settling precipitation tank of waterworks - Google Patents

Abstract

The present invention is the upper end is open, the raw water is introduced through the porous plate by the inlet means to one side, the raw water is flowed out by the outlet means to the other side, the sedimentary recess that is deposited by the cohesive sediment of foreign matter inside the raw water introduced at the bottom And settling tank is formed; It is a rectangular parallelepiped having a frame made of a mesh network, and a plurality of withdrawal insertion holes inclined from the upper end to the inlet side is formed, and a plurality of guide rollers are fixed at the lower part of the withdrawal insertion hole, and a sedimentation cradle with moving rollers is formed at both upper ends. And settling guide device is fixed to be locked to the upper end of the settling tank; Gravitational sedimentation hole penetrates up and down on the inside, and a sedimentation inlet hole is formed on the front side, and protrudes downward on the inner side of the front side so that the tip is bent in the same manner as the inclination of the body to narrow the inner diameter of the gravity sedimentation hole. A plurality of contact sedimentation pins are formed, the withdrawal ring protrudes on the upper side, and relates to a coagulation sedimentation apparatus for sedimentation tanks used in water treatment facilities having a sedimentation guide plate inserted into the withdrawal insertion hole of the sedimentation guide device.

Sedimentation guide device, drawout insertion hole, sedimentation guide plate, gravity sedimentation hole, contact sedimentation pin, sedimentation tank

Description

Cohesion precipitation system for settling precipitation tank of waterworks

1 is a perspective view showing the appearance of a cohesion precipitation apparatus according to an embodiment of the present invention;

Figure 2 is a plan view showing a state of the flocculation sedimentation apparatus according to an embodiment of the present invention,

Figure 3 is a side cross-sectional view showing a state of the flocculation sedimentation device according to an embodiment of the present invention,

Figure 4 is a perspective view showing a state of the sedimentation guide device of the flocculation settling device according to an embodiment of the present invention,

5 is a perspective view showing a state of the sedimentation guide plate according to an embodiment of the present invention,

Figure 6 is an enlarged side cross-sectional view showing the main portion showing the operation of the settling guide plate according to the embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: coagulation sedimentation device 10: sedimentation guide device

11: withdrawal insertion hole 12: guide roller

13: sedimentation basin 14: moving roller

20: sedimentation guide plate 21: gravity settler

22: sedimentation inlet hole 23: contact sedimentation pin

24: drawing out roller 30: sedimentation tank

31: perforated plate 32: settling recess

The present invention relates to a coagulation sedimentation apparatus for sedimentation tanks used in water treatment facilities, and more particularly, by simultaneously performing gravity sedimentation and contact sedimentation of coagulation sediment, the efficiency of coagulation sedimentation can be further improved, and at the same time, the function of filtering foreign substances. In addition, it is possible to perform the coagulation sedimentation more smoothly even without additional equipment, and relates to the coagulation sedimentation apparatus for the sedimentation tank used in the water treatment facility, which is very easy to clean after a certain time.

Most water treatment facilities have at least one sedimentation tank to effectively remove contaminants such as sludge and SS (floating turbidity) introduced with raw water. Therefore, it is divided into circular sedimentation tank, scraper type rectangular sedimentation tank, inclined plate type rectangular sedimentation tank, and gravity sedimentation sedimentation tank.

Generally, in order to precipitate a suspension and take out a clean liquid, a coagulant and a suspension are mixed to form a flocculated precipitate that is easy to settle with a large particle diameter, and the precipitate is separated from the clean liquid in a sedimentation basin.

Such sedimentation basins used for flocculation sedimentation are classified into two types, the first of which is a rapid mixture of rapidly mixing and stirring flocculants and suspensions, and floc formation for slow stirring in order to grow flocculent precipitates. The horizontal flow settling portion which gravitationally sediments the sedimentary floc precipitate which follows, and separates from a clean liquid is the horizontal flow settling battery represented by the so-called horizontal flow settling battery which comprises a series of independent installation. The second is the so-called contact settler, which contains the coagulum sediment already present in the sedimentation basin and the newly introduced suspension and flocculant in the same sedimentation basin, which is agitated mainly by the mechanism, and which promotes the growth of sediment that is likely to settle into larger diameters than the former. Also called sedimentation basin, forced sedimentation, etc.).

In general, the two are compared, and there is a difference in the sedimentation rate of the flocculation sediment, and the former requires 4-8 hours for the sedimentation because the flocculation sediment is relatively small particle size and the sedimentation rate is slow. Because of the larger particle size, which is easier to settle than the former, the precipitation ends in a short time of 1-2 hours, resulting in a great difference in the capacity of the settler.

The horizontal flow sedimentation battery has a large capacity as described above, and thus has a drawback in that the equipment cost and facility site are excessive. Therefore, the maintenance of the horizontal flow sedimentation battery is easier than that of the contact sedimentation battery. The inclined tube is provided, and the reduction by the efficiency is attempted, and the equipment cost is reduced.

To this end, in a precipitation apparatus in which a plurality of sedimentation guide plates of agglomerated precipitates are disposed in parallel in a direction in which the suspension flows, the sedimentation guide plates are dropped along the sedimentation guide plates. By forming a series of corrugated plates having a plurality of continuous, and the concave and convex surfaces of the various settling guide plate formed in this way are symmetrical to each other and the settling guide plates are adjacent to each other in parallel and vertically arranged, The sedimentation guide plate forms a sedimentation separation groove of several long cohesive sediments having a polygonal cross section, and at the same time, the concave surface of one sedimentation separation groove adjacent to each other with the sedimentation guide plate therebetween and the convex surface of the other sedimentation separation groove. At the same time, the ends of the angular settling separation grooves are interconnected to form a vertical chain. A long passage is formed in succession, the suspension is passed in parallel to the sedimentation guide plate along the long sedimentation separation groove, and the flocculation sediment is formed by a portion having a large gap between the sedimentation separation grooves in the passages. A flocculation sedimentation apparatus for water and sewage facilities, which alternately continuously performs gravity sedimentation and contact sedimentation of flocculation sediment by narrow portions thereof, has been registered and registered as Utility Model Registration No. 365442.

However, such a conventional flocculation sedimentation device has the advantage of increasing the efficiency of flocculation sedimentation by alternately performing the gravity sedimentation and the contact sedimentation of the flocculation sedimentation continuously, if foreign matter is introduced into the blockage, There was a structurally weak problem that the operation of the coagulation sedimentation device is stopped.

In addition, although the ability to aggregate and precipitate the flocculated sediments is excellent, there is a problem in that additional cost is required because a separate means must be taken to remove the foreign substances.

In addition, after a certain time, there was a problem that the cleaning of the flocculation sediment or the settling tank is not easy.

The present invention is to solve the problems as described above, by simultaneously performing the gravity sedimentation and contact sedimentation of the flocculation sedimentation at the same time can increase the efficiency of flocculation sedimentation, and at the same time to perform the action of filtering foreign matter coagulation sedimentation without additional equipment It can be carried out more smoothly, the purpose of providing a coagulation sedimentation apparatus for the sedimentation tank used in the water treatment facility is very easy to clean after a certain time.

In order to achieve the above object, the present invention is open at the top, the raw water is introduced through the perforated plate by the inlet means to one side, the raw water is outflowed by the outlet means to the other side, foreign matter inside the raw water introduced at the bottom A settling tank in which the settling recesses formed by coagulation and precipitation are laminated;

It is a rectangular parallelepiped having a frame made of a mesh network, and a plurality of withdrawal insertion holes inclined from the upper end to the inlet side is formed, and a plurality of guide rollers are fixed at the lower part of the withdrawal insertion hole, and a sedimentation cradle with moving rollers is formed at both upper ends. And settling guide device is fixed to be locked to the upper end of the settling tank;

Gravitational sedimentation hole penetrates up and down on the inside, and a sedimentation inlet hole is formed on the front side, and protrudes downward on the inner side of the front side so that the tip is bent in the same manner as the inclination of the body to narrow the inner diameter of the gravity sedimentation hole. A plurality of contact sedimentation pins are formed, and the withdrawal ring protrudes from the upper end, and has a feature of having a sedimentation guide plate inserted into the withdrawal insertion hole of the sedimentation guide device.

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

1 is a perspective view showing the appearance of a cohesion precipitation apparatus according to an embodiment of the present invention, Figure 2 is a plan view showing a state of a cohesion precipitation apparatus according to the present invention, Figure 3 is a side cross-sectional view showing a state of a cohesion precipitation device according to the embodiment of the present invention. 4 is a perspective view showing a state of the sedimentation guide device of the coagulation sedimentation apparatus according to the embodiment of the present invention, Figure 5 is a perspective view showing a state of the sedimentation guide plate of the present invention embodiment, Figure 6 is an operation of the sedimentation guide plate of the present invention embodiment The enlarged sectional side view showing the appearance.

For reference, in describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof is omitted.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or an operator.

Therefore, the definition should be made based on the contents throughout the specification.

The flocculation settling apparatus 1 for the sedimentation tank used in the water treatment facility of the present invention includes a settling tank 30 for flocculating and settling the foreign matter introduced together with the raw water, and is fixed to the sedimentation tank 30 so as to move a plurality of foreign matters of the raw water. The sedimentation guide device 10 for flowing out through the sedimentation guide plate 20 and a plurality of the sedimentation guide device 10 are inserted into the sedimentation guide device 10 to guide the foreign matter introduced with the raw water to the gravity sedimentation and the contact sedimentation to the sedimentation tank 30. It consists of sedimentation guide plate 20 to precipitate.

The sedimentation guide device 10 is a rectangular parallelepiped having a frame made of a mesh net that is fixed to be moved to the sedimentation tank 30 so as to filter fine foreign matter introduced with the raw water, and withdraws a plurality of inclined to the left side of the inlet side from the top. An insertion hole 11 is formed, and a plurality of guide rollers 12 are axially fixed inside the withdrawal insertion hole 11, and a precipitation tank cradle 13 having a moving roller 14 axially coupled to both sides is formed of a precipitation tank. Move left and right at the upper end of the 30.

The sedimentation guide plate 20 is a plate body that is respectively inserted into the withdrawal insertion hole 11 of the sedimentation guide device 10 to smoothly settle the foreign substances introduced with the raw water, the gravity sedimentation hole (21) penetrated up and down inside It is formed, and the sedimentation inlet hole 22 is formed in the front of the front water is introduced into the inside, the front side of the front of the gravity sedimentation hole 21 is vertically protruded to the lower end is bent in the same way as the inclination of the body As a result, a plurality of contact sedimentation pins 23 are formed to narrow the inner diameter of the gravity sedimentation hole 21 in one section, and the sedimentation guide plate 20 is formed at the upper end of the withdrawal insertion hole 11 of the sedimentation guide device 10. Withdrawal rollers 24 that can be easily separated protrude upwards.

The sedimentation tank 30 is to drop a coagulated sediment along the sedimentation guide plate 20 by placing a plurality in parallel in the flowing direction, the sedimentation guide device 10 and the sedimentation guide plate to settle the foreign matter introduced with the raw water The top of which the 20 is mounted is an open cross section with a rectangular tube, the top of which is open, and on one side, raw water is introduced through the porous plate 31 by an inflow means using a natural drop due to the inclination, again. Raw water flows out by the outflow means using the natural fall due to the inclination to the other side, and at one side, the foreign body inside the raw water introduced through the sedimentation guide device 10 and the sedimentation guide plate 20 is sedimented and precipitated to be laminated. 32 is formed.

Referring to the use state of the present invention as follows.

First, the porous plate 31 is installed in the settling guide device 10 in the settling tank 30 formed in the inlet of the raw water, the moving roller 14 is fixed to the settling tank cradle 13 on both sides of the settling tank 30 Place them on top of each other so as to be movable.

In this state, the sedimentation guide plate 20 is inserted into each of the plurality of withdrawal insertion holes 11 of the sedimentation guide device 10, and then raw water may be circulated.

Through the porous plate 31 of the settling tank 30 through the sedimentation guide device 10, which is a mesh network, foreign matters of coarse particles are caught, and raw water having small foreign matters is sedimentation inlet hole 22 or gravity sedimentation hole 21. When introduced into the gravity sedimentation hole 21 through the top of the), the flocculation sediment of the introduced raw water drops the gravity sedimentation hole 21.

At this time, the passage of the gravity sedimentation hole 21 is narrowed by the plurality of contact sedimentation pins 23 and is widened again to repeat the thickening of the concentration of sediment, and in the narrowing part of the passage, the dropping of the flocculation sediment is caused. As the accompanying speed increases and raw water flows into the contact sedimentation pins 23, a vigorous mixing of the suspension with the turbulent flow of the water and the flocculated precipitate occurs as compared with the rectified state of the wide passage.

That is, the mixed flow of the suspension and the flocculated sediment generates gravity sedimentation by the rectifying action of the gravity sedimentation hole 21 partitioned by the contact sedimentation pins 23 in the wide passage and the sediment and sediment in the narrow passage. Contact precipitation occurs due to turbulent conditions, including the upstream and downstream flows of the suspension, and high concentrations of flocculated precipitates.

Therefore, the precipitated flocculant precipitates are sequentially repeated contact precipitation, the particle size is large, the sedimentation rate is fast, and complete sedimentation is possible. As a result, the sedimentation separation of the flocculated sediment can be effectively performed even in a small sedimentation apparatus, thereby making it possible to obtain sufficiently clean treated water.

As described above, the present invention can improve the efficiency of flocculation sedimentation by simultaneously performing the gravity sedimentation and the contact sedimentation of the flocculation sediment at the same time, and at the same time, it also performs the function of filtering out the foreign matter, thereby making it possible to perform the flocculation sedimentation more smoothly without additional equipment. And after a certain time, the cleaning work is very easy.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

The sedimentation tank is formed with a sediment recess in which an upper end is opened and raw water is introduced through a perforated plate by an inflow means to one side, and raw water is flowed out by an outlet means to the other side, and foreign matter inside the raw water introduced at the lower end is coagulated and precipitated. Wow; It is a rectangular parallelepiped having a frame made of a mesh network, and a plurality of withdrawal insertion holes inclined from the upper end to the inlet side is formed, and a plurality of guide rollers are fixed at the lower part of the withdrawal insertion hole, and a sedimentation cradle with moving rollers is formed at both upper ends. And settling guide device is fixed to be locked to the upper end of the settling tank; Gravitational sedimentation hole penetrates up and down on the inside, and a sedimentation inlet hole is formed on the front side, and protrudes downward on the inner side of the front side so that the tip is bent in the same manner as the inclination of the body to narrow the inner diameter of the gravity sedimentation hole. A plurality of contact sedimentation pins are formed, the withdrawal ring protrudes on the top, the flocculation settlement apparatus for the sedimentation tank used for water treatment facilities having a sedimentation guide plate inserted into the withdrawal insertion hole of the sedimentation guide device.

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