KR20040087379A - A Predging process of deep deposit and apparatus therefor - Google Patents

Abstract

PURPOSE: A dredger of high-depth sediment is provided to improve productivity by reducing the cost required for manufacture and disposal and to execute a dredge work effectively. CONSTITUTION: The dredger of high-depth sediment contains: a high pressure formation unit(P) using a jet pump(3); a discharge unit(T) using a high pressure water feed pipe(6), an air induction pipe(7) and a high depth sediment discharge pipe(4); an impurities separation unit(C) composed of a drum screen(160) connected to one side of the high depth sediment discharge pipe(4) to let sediment flow in, and a shift member(220) connected to the other side of the drum screen(160) to discharge impurities; a primary depositing unit(D) composed of a soil separation tank(100) installed on the lower part of the drum screen(160) to settle down the soil in sludge and a sludge feed pipe(120) whose one end is connected with an upper part of the soil separation tank(100); a secondary depositing unit(E) composed of a sludge separation tank(110) connected to the other end of the sludge feed pipe(120) to settle down minute soil in sludge; and a discharge unit(F) composed of an underwater pump(200) installed to the upper part of the sludge separation tank(110) and a sludge discharge pipe(140) connected to the underwater pump(200) to discharge the sludge only.

Description

A predging process of deep deposit and apparatus therefor}

The present invention relates to a dredging method and a device for sewage sediment of high depth, and in detail, the sediment of the high depth position is sent to the outside through a high pressure forming means using a mixed gas pump and a high pressure sending means, Is separated into the contaminant and the soil, fine soil, sludge by the drum screen, the soil separation tank and the sludge separation tank according to the sediment separation means and the first and second sedimentation means, and finally the remaining sludge of the submersible pump The present invention relates to a dredging method of high-depth sediment to be discharged to the outside by operation and a dredging device therefor.

As sediment accumulates continuously in sedimentation tanks (digestion tanks) used in sewage treatment plants in recent years, the sewage treatment function gradually decreases. To solve this problem, a centrifugal pump that can be spun by high-speed spinning of sediments with sewage to solve them Stepwise dredging using (vortex pump) has been made, but this method of dredging by centrifugal pump has a problem in that foreign matters contained in sedimentary sediments are caught in the impeller when pumped, causing frequent mechanical failures.

In addition, in recent years, in addition to the sediment dredging method by the centrifugal pump, the sediment dredging method by the jet pump gradually ejects a high pressure fluid from the nozzle and sends another fluid by the extrusion force of the high pressure fluid. In order to dredge the sediment located in the high depth, there is a problem that the working efficiency is low because the ultra-high pressure drive is difficult because there is a structural pressure limit.

On the other hand, there is a dredging method and a device of the high-depth sediment of the registered patent No. 0167415 filed and filed by the applicant for the solution of this, as shown in Figure 4, the air introduction pipe and high pressure water on one side of the tip portion The first step of inserting the high-depth sediment discharge pipe (4) connected to each other organically in the sedimentation tank (1) so that its tip touches the sediment (2) in the high-depth sedimentation tank (1), the high-pressure water transfer pipe ( 6) the second step of driving the mixed gas jet pump 3 so that the high-pressure water is injected into the high-depth sediment discharge pipe 4, the high-depth sediment (2) by the output of the high-pressure water is sent out A third step of sending the high pressure into the collection tank 11 along the pipe 4, a fourth step of forcibly discharging the water of the high-depth deposit 2 contained in the collection tank 11 through the filtering network 16; Soil and sludge 9 filled in the collecting tank 11 This method of dredging sediment also struggled with the fifth step of transporting the sludge treatment plant is disclosed in Patent Application.

In addition, as shown in Figures 5 and 6, the high-depth sediment discharge pipe (4) having a length enough to be fully inserted to the inner bottom of the deep sedimentation tank (1) and connected to the collecting tank (11) On one side of the suction tip (5) of the), the high-pressure water feed pipe (6) connected to the mixed gas jet pump (3) communicates with the high-depth deposit discharge pipe (4), and the connection portion forms a nozzle (7), An air inlet pipe 8 is separately formed to allow external air to flow into one side of the nozzle 7, and a supernatant water discharge pipe 13 that can be opened and closed by a valve 12 is formed at one wall of the fryer collecting tank 11. In the position of the corresponding inner wall surface, a filter barrel 14 having a detachable lid 14a is formed, and a filter net 16 filled with gravel 15 is inserted into the filter barrel 14 so that the lid ( 14a), and the bottom surface of the collecting tank 11 is dredged high-depth sediment provided with a drain valve (17) Value is disclosed in Patent Application.

By the way, the conventional patented dredging method and dredging device of the applicant of the present applicant is not difficult to send the sediment to the outside to dredge the sediment located in the high depth, but the process of processing the sent sediment Due to the limited processing capacity of contaminants and sediment collection vehicles, it is not possible to continuously process the collection vehicles because they have to be replaced frequently during dredging operations. Since it is only done once, impurities and soils are removed, and the sludge in the remaining sewage is not completely removed, which limits the discharge of uncontaminated supernatant water. There was a ham.

In addition, since a large amount of sediment can be processed only when a plurality of transport vehicles carrying water collecting separation means are provided among the conventional dredging devices, productivity is reduced and inefficient work is performed due to the burden of purchasing and manufacturing costs. There was a problem with that.

The present invention has been made to improve the problems of the conventional dredging method and the dredging device of the conventional high-depth sediment, the sediment of the high-depth position by means of a high pressure forming means using a mixed gas pump and a high pressure sending means The discharged to the outside, the sediment sent out by the segregation separation means is classified into a drum screen, the contaminants of the sediment is discharged to the outside by a moving means such as a screw conveyor, the soil containing sludge is first and first 2 Sedimentation method and dredging method of high-depth sediment in which sediment and fine soils are precipitated by sediment separation tank and sludge separation tank according to sedimentation means, and the final sludge is discharged to the outside by operation of underwater pump by discharge means. It is an object of the present invention to provide a dredging device of the above configuration used in the construction method.

1 is a configuration diagram schematically showing an apparatus for applying a dredging method of high-depth deposits according to the present invention,

2 is a detailed cross-sectional view of the drum screen portion according to the present invention;

3 is a dredging process flow diagram showing the dredging method of the high-depth sediment according to the process for each process,

4 is a flowchart of a dredging process showing a conventional dredging method of high-depth sediment for each process,

5 is a schematic view showing a device for applying a dredging method of a conventional high-depth deposit,

FIG. 6 is an enlarged view of a portion A of FIG. 5.

(Explanation of reference numerals)

P ... high pressure forming means, T ... sending means,

C ... means for separating the contaminants, D ... first precipitation means,

E ... second precipitation means, F ... discharge means,

1 ... high depth sedimentation tank, 2 ... high depth sediment,

3 ... Hong jet pump, 4 ... High-depth sediment discharge pipe,

5 ... suction end, 6 ... high pressure feed pipe,

7 nozzles, 8 air entry,

9 sediment and sediment, 10 segregation vehicles,

19 ... ground, 100 ... soil separation tank,

110 ... sludge separation tank, 120 ... sludge feed pipe,

130 partitions, 140 sludge discharge lines,

160 ... drum screen, 160a ... vent,

160b ... signature, 161 ... protective drum,

162 fixing frame, 163 cleaning nozzle,

164 cleaning water supply pipe, 190 sedimentation soil,

200 submersible pumps, 201 pedestals,

220 ... screw conveyor.

The present invention to achieve the object as described above,

In the dredging method of high-depth deposits, including a high-pressure forming process using a mixed gas jet pump, and a delivery process using a high-pressure water transfer pipe, air introduction pipe and high-depth deposit discharge pipe,

The high-depth sediment discharge pipe is connected to one side to separate the contaminant and the soil and sludge into the drum screen in which the sediment is introduced, and discharges the contaminants to the outside to the moving member connected to the other side of the drum screen, sludge and earth and sand Free-falling debris separation process,

Sediment of free-fall from the drum screen to the sediment separation tank installed in connection with the lower portion of the drum screen, and the sludge containing the fine earth to the sludge conveying pipe connected to the upper end and one end of the sediment separation tank to transfer the sludge The first precipitation process,

A second precipitation step of precipitating fine soil in the sludge passing through the sludge conveying pipe to the sludge separating tank connected to the other end of the sludge conveying pipe,

And a discharge process of sucking the sludge from which fine soil is removed by the submersible pump installed on the inner side of one end of the sludge separation tank and discharging the sludge sucked by the operation of the submersible pump into the sludge discharge pipe connected to the submersible pump. It is characterized by.

In addition, the first sedimentation process is characterized in that it further comprises a step of continuously removing the sediment deposited on the bottom of the sediment separation tank by a bucket connected to the conveyor.

In addition, it is another feature to use a screw conveyor as the moving member.

In addition, a plurality of washing nozzles are installed along the longitudinal direction at regular intervals from the outer surface of the drum screen during the separation of the contaminants, and the washing water is supplied by the washing water supply pipe connected thereto and sprayed toward the drum screen. It is another feature to include.

In addition, during the second precipitation process, a partition is installed at a predetermined interval with the submersible pump inside one side of the sludge separation tank, and further includes a step of allowing the sludge from which fine soil is removed to flow toward the submersible pump. Another feature.

And, in the dredging device of high depth sediment comprising a high pressure forming means using a mixed gas jet pump, a high pressure water transfer pipe and an air introduction pipe and a sending means using a high depth deposit discharge pipe,

A sediment separation means comprising a drum screen to which the sediment discharge pipe is connected to one side and a sediment is introduced and a moving member connected to the other side of the drum screen to discharge the impurities;

A first sedimentation means comprising a sediment separation tank installed at the lower portion of the drum screen to deposit free sludge, and a sludge conveying pipe connected to an upper portion and an end of one side of the soil separation tank;

A second sedimentation means of the sludge separation tank connected to the other end of the sludge conveying pipe to settle the fine soil in the sludge that flows through it;

It further comprises a discharge means consisting of a water pump is installed on the upper end of the inner side of the sludge separation tank and a sludge discharge pipe connected to the water pump to discharge the sludge from which fine soil is removed.

In addition, it characterized in that it further comprises a conveyor equipped with a plurality of buckets connected to one side of the soil separation tank.

In addition, the moving member is characterized by another screw conveyor.

In addition, the cleaning apparatus is further characterized in that it further comprises a plurality of cleaning nozzles are supplied by the washing water supplied by the washing water supply pipe along the longitudinal direction at regular intervals from the outer surface of the drum screen.

In addition, the partition is installed in one side of the sludge separation tank at a certain interval with the submersible pump, and further comprises a partition to allow the sludge from which fine soil is removed.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a dredging method and a dredging device of a high depth sediment according to the present invention. First of all, it should be noted that the same components or parts are denoted by the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a schematic view showing a device for applying a dredging method of high-depth deposits according to the present invention, as shown,

High pressure forming means (P) for forming a high pressure by using the mixed gas jet pump (3), a sending means (T) for sending high-depth deposits to the outside by the high pressure forming means (P), and high cores sent to the outside The sediment separation means (C) for separating sediment into sludge containing sediments and sediment, the first sedimentation means (D) and the second sedimentation means (E) for sedimenting the soil in the separated sludge, and the sedimentation means ( D) is divided into discharge means (F) for discharging the sludge produced by the treatment of (E) to the outside, the operation of these means are connected in sequence to achieve dredging of high-depth sediment, each means Specific configuration and operation of these are as follows.

First, the high pressure forming means (P) and the sending means (T), which are configured in the same manner as in the prior art, are connected to the mixed gas jet pump 3 and the mixed gas jet pump 3 simultaneously with the sludge 18. The high pressure water conveying pipe 6 and the air introducing pipe 8 introduced into the high depth sedimentation tank 1 in which the high depth sediment 2 is accumulated, and the high pressure water conveying pipe 6 and the air introducing pipe 8 are The suction tip 5 of one end connected to the lower side is opened to the high-depth sediment 2 in the high-depth sedimentation tank 1, and the other end is the high-depth sediment exposed to the outside of the high-depth sedimentation tank 1. It consists of a discharge pipe (4).

The contaminant separating means (C) is composed of a drum screen 160 connected to the other end of the high-depth deposit discharge pipe 4 on one side and a screw conveyor 220 connected to the other side of the drum screen 160. .

The first precipitation means (D) is connected to the bottom of the drum screen 160, one side is connected to the soil separation tank 100 installed on the ground 19, and the other side of the soil separation tank 100, The sludge feed pipe 120 is installed. Here, it is also possible to connect the conveyor (not shown) in which the bucket is continuously suspended to one side of the soil separation tank 100 to remove the sedimentary soil (190).

The second sedimentation means (E) is made of a sludge separation tank 110 installed on the ground 19 at a predetermined distance from the soil separation tank 100, the sludge feed pipe 120 is connected to the upper surface of one side is installed By doing so, the soil separation tank 100 and the sludge separation tank 110 to communicate with each other.

Here, as shown in Figure 2, the drum screen 160 is made of a cylindrical discharge hole 160a for discharging the sludge containing the earth and sand throughout the circumferential surface is drilled in all directions, the other side in one side The guide plate 160b inclined toward the center from the inner side toward the side is continuously attached to allow the impurities flowing into one side to be moved in the other direction, and the drum screen 160 itself has an open bottom. In the state where it is inserted into another cylindrical protection drum 161, the whole is installed in the fixed frame 162 which has a rectangular frame shape, and the outer peripheral surface and the protection drum 162 of the said drum screen 160 which face each other. A plurality of cleaning nozzles 163 are connected to the washing water supply pipe 164 along the longitudinal direction between the inner circumferential surfaces of the inner circumferential surface of the inner circumferential surface of the protective drum 162. There is.

On the other hand, the drum screen 160 is configured in such a form that the wires (not shown) are continuously installed in a straight line at regular intervals along the circumference of the circumferential surface between both sides facing each other, to discharge the space between the wires It can also be used as a ball, in the form or shape of the discharge hole (160a) may be configured in a variety of ranges to faithfully perform the function of discharging the sludge containing the soil.

Discharge means (F) is installed on the upper end of the inner side of one end of the sludge separation tank 110, that is on the pedestal 201 fixed to the point 4/5 of the inner side opposite to the side to which the sludge conveying pipe 120 is connected It consists of a submersible pump 200, the sludge discharge pipe 140 is connected to the submersible pump 200 and extends to the outside.

Here, the partition 130 facing the submersible pump 200 at regular intervals in the sludge separation tank 110 in front of the submersible pump 200 is installed upright, and the width of the sludge separation tank 110 and By installing in the same and slightly lower plate-like form, the fine soil sediment from the sludge passed through the sludge feed pipe 120 from the soil separation tank 100 is passed through the sludge of the remaining upper sludge to the water pump 200, The fine soil is to use the overflow (flow) phenomenon that serves to block.

The dredging device having a high depth sediment according to the present invention configured as described above and the process of dredging the high depth sediment will be described in sequence with reference to FIG. 3.

First, the first process by the high pressure forming means (P) for forming a high pressure by using the mixed gas jet pump (3), the air introduction pipe (8), the high pressure water transfer pipe (6) and the high-depth deposit discharge pipe ( The second process by the sending means (T) for sending the high-depth sediment (2) to the outside in the high-depth sedimentation tank (1) using 4) is made as in the prior art, as described above, the present invention In the third process by the sediment separation means (C) for receiving the high-depth sediment sent out and the sludge containing the sediments and sediment, and the fourth by the first precipitation means (D) for sedimentation of the sludge containing the soil The fifth step by the step and the second settling means (E) and the sixth step by the discharge means (F) for discharging the sludge remaining after the sediment is sedimented is made in a manner different from the conventional method.

That is, in the third process by the contaminant separating means (C), after the high-depth sediment (2) sent out to the outside by the discharging means (T) flows into the drum screen 160, the contaminants are moved to one side, It is discharged to the outside by the free fall on the screw conveyor 220 is loaded on the junk collection vehicle 10, the sludge containing the earth and sand exiting through the discharge hole (160a) of the drum screen 160 free fall It will fall to the soil separation tank 100 by the bottom.

At this time, by installing the other side of the drum screen 160 to which the screw conveyor 220 is connected to be slightly lower than one side of the drum screen 160 to which the high-depth deposit discharge pipe 4 is connected, so that the contaminants and the soil are in one direction. Cleaning water sprayed from the cleaning nozzle 163 is continuously sprayed to the drum screen 160 so as to be able to move well to and to prevent the discharge hole 160a formed on the outer circumferential surface of the drum screen 160 from being clogged by contaminants. To be possible.

Next, in the fourth process by the first precipitation means (D), if the soil (190) having a high specific gravity among the sludge dropped by the free fall precipitates to the bottom of the soil separation tank (100), it is removed by equipment such as a fork crane or Alternatively, the bucket connected to one side of the soil separation tank 100 may be removed by a conveyor (not shown) continuously running, and the sludge is continuously flowed and passed to the sludge transfer pipe 120 and passed through the sludge separation tank. It goes through the step (110).

Next, in the fifth step by the second precipitation means (E), although the sludge which has passed to the sludge separation tank 110 has been removed by the soil separation tank 100 and the sludge conveying pipe 120, Since the fine soil is still included in the state, after a certain period of time, the fine soil is settled to the bottom of the sludge separation tank 110, and the soil is removed from the sludge.

Next, in the sixth step by the discharge means (F), the sludge is sucked by the submersible pump 200 provided on the upper end of the inner side of the sludge separation tank 110, the sucked sludge is the submersible pump 200 The step of discharging the sludge discharge pipe 140 connected to the outside to complete the dredging process of the high-depth sediment, at this time completely removed to the fine soil by the partition 130 installed in front of the submersible pump (200). The sludge of the upper portion is passed to the submersible pump 200.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

According to the high-depth sediment dredging method and dredging device of the present invention made up of the above objects and configurations, the process of sediment is composed of a multi-stage by the drum screen, sediment and sludge separation tank, etc. At the same time, the soil and sediment are continuously transported by the collecting vehicle, so that the sediment deposited in the soil sedimentation tank is also removed by the fork lane, so that a large amount of sediment can be continuously processed. Since it is not necessary to prepare a large number of dredging devices as discharge means, the production and processing costs are reduced, and thus productivity is improved and efficient dredging work is performed.

In addition, the partitions installed during the treatment of the sludge can discharge the sludge almost completely removed, resulting in sediment dredging to contribute to the improvement of the water environment.

Claims (10)

In the dredging method of the high-depth sediments, including the high-pressure forming process using the mixed gas jet pump (3), and the discharge process using the high-pressure water transfer pipe (6), air introduction pipe (7) and high-depth deposit discharge pipe (4). In The high-depth sediment discharge pipe (4) is connected to one side to separate the sediment and sediment and sludge into the drum screen 160, the sediment is introduced, the moving member 220 connected to the other side of the drum screen 160 A dust separation means process for discharging the waste matter to the outside and freely dropping the sludge; The sediment free-falling from the drum screen 160 to the sediment separation tank 100 is connected to the lower portion of the drum screen 160 is settled, the one side and one end of the soil separation tank 100 is connected to each other sludge A first precipitation step of transferring the sludge containing fine soil to the delivery pipe 120; A second precipitation step of precipitating fine soil in the sludge which passes through the sludge conveying pipe 120 to the sludge separating tank 110 connected to the other end of the sludge conveying pipe 120; The water pump 200 sucks the sludge from which fine soil is removed by the water pump 200 installed on the inner side of one end of the sludge separation tank 110, and the water pump 200 by the sludge discharge pipe 140 connected to the water pump 200. A discharge process for discharging the sludge sucked by the operation of the; Dredging method of high-depth sediment, characterized in that it further comprises. The method of claim 1, Dredging method of the high-depth sediment, characterized in that further comprising the step of continuously removing the sediment (190) precipitated on the bottom of the soil separation tank 100 during the first sedimentation process by a bucket connected to the conveyor. The method of claim 1, Dredging method of high-depth deposits, characterized in that using the screw conveyor as the moving member (220). The method of claim 1, A plurality of cleaning nozzles 163 are installed along the longitudinal direction at regular intervals from the outer surface of the drum screen 160 during the process of separating the contaminants, and the washing water is supplied by the washing water supply pipe 164 connected thereto. Dredging method of high-depth deposits, characterized in that it further comprises a step of spraying toward the screen (160). The method according to any one of claims 1 to 4, In one side of the sludge separation tank 110, the sludge partition 130 is installed at a predetermined interval with the submersible pump 200, so that only the sludge from which fine soil is removed flows toward the submersible pump 200. Dredging method of high-depth deposit, characterized in that it further comprises a process. High depth including high pressure forming means (P) using mixed gas jet pump (3), high pressure water conveying pipe (6) and air introducing pipe (7) and sending means (T) using high depth deposit delivery pipe (4). In the dredging device of the sediment, The high-depth sediment discharge pipe 4 is connected to one side of the sediment is introduced into the drum screen 160 and the other side of the drum screen 160 is connected to the other side of the moving member 220 to discharge the contaminant separation Means (C); Installed in the lower portion of the drum screen 160 to the sedimentation tank 100 in which the sediment of sediment in the freely falling sludge is settled and the sludge transport pipe 120 connected to the upper and one end of one side of the soil separation tank 100 is connected to each other A first precipitation means (D) formed; A second sedimentation means (E) of the sludge separation tank (110) connected to the other end of the sludge conveying pipe (120) to precipitate fine soil in the sludge that flows through it; Discharge means consisting of a water pump 200 is installed on the upper end of the inner side of the sludge separation tank 110 and a sludge discharge pipe 140 connected to the underwater pump 200 to discharge only the sludge from which fine soil is removed. (F); Dredging device of high depth sediment, characterized in that it further comprises. The method of claim 6, Dredging device of high-depth sediment, characterized in that it further comprises a conveyor equipped with a plurality of buckets connected to one side of the soil separation tank (100). The method of claim 6, The moving member 220 is a dredging device of the high depth sediment, characterized in that the screw conveyor. The method of claim 6, High-depth deposits, characterized in that it further comprises a plurality of cleaning nozzles 164 are sprayed by the washing water supplied by the washing water supply pipe 163 at a predetermined distance from the outer surface of the drum screen 160 in the longitudinal direction Dredging device. The method according to any one of claims 6 to 9, The sludge separation tank 110 is installed inside one side of the water pump 200 at regular intervals, and the sludge partition 130 further includes a sludge partition 130 through which fine sludge has been removed. Dredging device of road sediment.