KR200321857Y1 - Sewage recycling system of dredging car - Google Patents

Abstract

The present invention relates to a dredging car that removes sludge or dirt in sewage pipes, and in particular, separates sludge contained in sewage that is recovered as a sludge tank after dredging and recovers it into a sludge tank, while clean sludge is separated from clean water. The present invention relates to a sewage recycling apparatus for a dredging car that is reflowed into a furnace so that it can be reused as high pressure water for sludge and dirt removal work.

The present invention is installed on the inner side of the hatch (hatch) for discharging the sludge stored in the sludge tank to the primary and secondary filter nets for filtering sludge and dirt of relatively large particles contained in the sewage, 1, After pumping sewage containing small particles of sludge that passed through the secondary filter network, it is supplied to a hydrocyclone and separated into clean separation water and sludge, respectively.The separated water from which the sludge is separated is supplied to the primary microfilter to fine residual sludge. While filtering the filter, the filtered water filtered by the primary fine filter is supplied to the secondary fine filter to filter again the remaining sludge which is not filtered to produce clean filtered water and then reintroduced into the water tank, and the hydrocyclone The sludge separated by the sludge and the sludge filtered by the first and second fine filters are automatically sucked into the sludge tank by vacuum suction. Which will lure.

Description

Sewage recycling system of dredging car}

The present invention relates to a dredging car that removes sludge or dirt in sewage pipes, and in particular, separates sludge contained in sewage that is recovered as a sludge tank after dredging and recovers it into a sludge tank, while clean sludge is separated from clean water. The present invention relates to a sewage recycling apparatus for a dredging car that is reflowed into a furnace so that it can be reused as high pressure water for sludge and dirt removal work.

In general, in the stagnant section inside the sewer pipe, concrete corrosives, various dirt, and sludge that fall off the inner wall easily accumulate, and gradually block the sewer pipe over time, thereby obstructing the flow of water while the sewer pipe is gradually blocked. As the pressure inside the pipe increases, sewage flows out of the gaps such as pipe joints and cracks, and contaminates soil as well as groundwater.

Therefore, to prevent this risk in advance, it was necessary to periodically clean the sewer pipe so as not to disturb the flow of sewage.

A general dredging car 1 for dredging such a sewer pipe is a water tank 3 in which water for scraping sludge and dirt from the sewer pipe is stored as shown in FIGS. 1 to 3, and sewage containing sludge and dirt after dredging. The double tank (5) configured to be separated into the sludge tank (4) for recovering is mounted on the vehicle (2) while spraying the water stored in the water tank (3) with a high pressure spray pump to discharge the sludge and dirt deposited in the pipeline. After scraping out, a vacuum pump 6 is used to suck the sludge and sewage-containing sewage into the sludge tank 4.

Such conventional dredging cars have no problem in performing the fundamental purpose of removing sludge or dirt in sewage pipes, but when the sewage recovered to the sludge tank (4) during dredging is full water level, the wastewater must be discharged to the outside and then reworked. If the water stored in the water tank (3) to the low water level was to follow the cumbersome problem of having to supply a separate water to the water tank (3).

In addition, the drought vehicle had to be moved from the dredging place when discharge of wastewater and re-supply of cleaning water as well as the above-mentioned work, and at this time, the work efficiency had to be temporarily stopped, resulting in a problem of deterioration of work efficiency. .

In addition to the constant water supply, the cost of treating a large amount of sewage was expensive, which was accompanied by a problem of low economic feasibility.

The present invention has been proposed to solve the problems caused by the conventional dredging car, and the sewage recovered by the sludge tank is separated into the sludge and the clean filtrate by using a recycling device, respectively, and the sludge is recovered into the sludge tank while the filtered water Re-flows into the water tank and reuses it as high pressure water to remove sludge and dirt, thereby drastically reducing the amount of sewage, and providing a dredging car's sewage recycling device without the hassle of continuously supplying separate water to the water tank. It is intended to be the main purpose of the design.

The present invention for achieving the desired purpose is to filter the sludge and dirt of relatively large particles contained in the sewage on the inner surface of the hatch (hatch) for discharging the sludge stored in the sludge tank to the outside Installed, pumping sewage containing small particles of sludge that passed through the first and second filtration nets, and then supplying them to a hydrocyclone to separate clean water and sludge, respectively, and separating the sludge separated water into primary microfilters. To filter the fine residual sludge, while supplying the filtered water filtered by the primary fine filter to the secondary fine filter to filter again the remaining sludge that was not filtered to produce a clean filtered water and then re-introduced into the water tank Let's do it.

In addition, the sludge separated by the hydrocyclone and the sludge filtered by the first and second fine filters are automatically sucked into the sludge tank by vacuum suction.

In addition, the inside of the secondary filter network, which is installed inside the primary filter network, which is impossible for human proximity, installs a washing device that automatically washes the filter network to prevent clogging of the filter network, thereby filtering sludge of large particles. Should be made smoothly.

1 is a plan view of a dredging car to which the present invention is applied

2 is a front view of the dredger of the present invention

Figure 3 is a longitudinal sectional view showing the internal structure of the subject innovation double tank

Figure 4 is a longitudinal cross-sectional view of the state in which the sewage vacuum suction in the sludge tank

Figure 5 is a longitudinal sectional view of a state diagram in which sludge contained in the sewage is filtered through the first and second primary filter network of the present invention

Figure 6 is an enlarged cross-sectional view of the rotation support state of the secondary filter network of the present invention

Figure 7 is an enlarged cross-sectional view of the coupling state of the present invention secondary filter net and washing motor

8 is a side view of the filter net washing means is installed on the secondary filter net of the present invention

9 is an automatic washing state of the secondary filter net by the present invention filter net washing means

10 is a plan sectional view of the present invention filter network washing means

11 is a state diagram of the present invention sewage pump

12 is a front view of the operating state of the subject innovation hydrocyclone

13 is a plan view of the operating state of the subject innovation hydrocyclone

14 is a plan view of the operating state of the first and second fine filter of the present invention

Figure 15 is a side cross-sectional view of the installation state of the first and second invention fine filter

Figure 16 is a plan view of the installation state of the present invention sludge loader

Figure 17 is a front sectional view of the installation state of the present invention sludge loader

[Explanation of symbols on the main parts of the drawings]

1: dredger 3: water tank 4: sludge tank

10: primary filter network 20: secondary filter network 26: discharge pipe

30: filter network washing means 32: washing motor 33: high pressure water jet

34: injection nozzle 35: sludge removal blade 40: sewage pump

50: hydrocyclone 60: primary fine filter 70: secondary fine filter

80: sludge

Looking in more detail on the configuration for effectively achieving the object of the present invention is as follows.

Prior to describing the configuration of the present invention, a configuration of the conventional general dredging vehicle 1 is divided into a water tank 3 and a sludge tank 4 in the vehicle 2 as shown in FIGS. 1 to 4. The tank (5) is mounted, and the water stored in the water tank (3) is sprayed with a high pressure spray pump to scrape the sludge and the dirt deposited in the pipeline, and the sludge and the filthy water containing the sludge using the vacuum pump (6). It is suctioned and recovered to the sludge tank 4. The vacuum pump 6 is connected to the vacuum suction port 7a and the vacuum tube 7b installed at the upper portion of the water tank 3 and the sludge tank 4 to form a vacuum inside the water tank 3 and the sludge tank 4. When the vacuum is applied to the sludge tank 4, the wastewater is sucked through the suction pipe 8 to be recovered to the sludge tank 4 as shown in FIG. 4 while the internal air of the sludge tank 4 is vacuum tube ( It is discharged to the outside through the exhaust pipe 7c via 7b). Here, some of the sludge contained in the internal air is filtered through the filter barrel (7d) is discharged to the outside through the exhaust pipe (7c) there is no fear of environmental pollution.

In addition, the water tank (3) is selectively provided with a vacuum only when the intake water from the outside (gaecheon, river, etc.) in a state in which a separate suction hose is connected to the water supply port (9).

The present invention, in this known dredging car (1), is installed on the inner side of the hatch 11 of the sludge tank (4) to collect the sludge and dirt of large particles contained in the sewage collected by the sludge tank (4) 1 A primary filtration net 10 for filtering secondaryly, a secondary filtration net 20 for filtration of sewage having passed through the primary filtration net 10 into the sewage pump 40, and the secondary Rotating the filter net 20, while scratching the outer peripheral surface and at the same time spraying the high pressure water to automatically filter the sludge caught in the secondary filter net 20 and the sludge tank (4) of the A sewage pump 40 for supplying sewage with large particles of sludge and sewage filtered through the primary and secondary filtration nets 10 and 20 to the hydrocyclone 50 by pumping sewage, and the sewage pump 40 A pair of hydrocyclones 50 for separating the sewage supplied by the sludge into clean sludge and clean sewage water, respectively, A pair of primary microfilters 60 for firstly filtering the sludge that has not been separated by receiving the separation water separated by the hydrocyclone 50 and the filtered water filtered by the primary microfilter 60. Filtered by a second filter to filter the unfiltered filtered water to produce a clean filtered water and then re-introduced into the water tank (3) and separated by the hydrocyclone (50) The sludge and the sludge filtered by the first and second fine filters (60) and (70) are sucked under vacuum to recover the sludge tank (4).

It will be described in more detail as to enable the present invention made of the schematic configuration.

The primary filtration net 10, which primarily filters relatively large particles of sludge and dirt contained in the wastewater recovered in the sludge tank 4, is selectively used to discharge the sludge recovered in the sludge tank 4 to the outside. The inner surface of the hatch 11 is installed to be openly attached to be curved to have a constant filtration space (12).

The secondary filter net 20, which is installed in the filtration space 12 of the primary filter net 10 and filters the sewage through the primary filter net 10, is generally cylindrical in shape and has an upper portion at the top. The support cap 21 is integrally coupled to be hermetically coupled to the lower end cap 22 is formed integrally coupled to the lower end of the rotary end portion 22a of the open form.

Here, the upper support cap 21 is integrally connected to the motor shaft 32a of the washing motor 32 installed in the motor bracket 31 attached to the hatch 11 so that it can be stably supported and the washing motor ( 32) During operation, the secondary filter net 20 is rotated while being selectively rotated, and the lower support cap 22 is rotatable to the rotary end 24a of the filter net support plate 24 via the friction preventing ring 23. By being fitted in the washing operation of the secondary filter net 20 can be made smooth rotation.

A connection pipe 25 is attached to the lower end of the filter net support plate 24 so as to communicate with the secondary filter net 20, and the connection pipe 25 is integrally coupled with the discharge pipe 26 penetrated outside the hatch 11. The sewage filtered by the secondary filter net 20 can be introduced into the sewage pump 40 through the discharge pipe 26 and the four sides of the motor bracket 31 and the filter net support plate 24 are a plurality of reinforcement bars ( 27) to the secondary filtration net 20 can be more stably supported.

The filter net washing means 30 is installed inside the primary filter net 10 to automatically clean the sludge caught in the secondary filter net 20, which is impossible to clean the sludge despite the opening of the hatch 11 (30) 7 to 9, the washing motor 32 is installed in the motor bracket 31 attached to the upper side of the inner side of the hatch 11, and the motor shaft 32a of the washing motor 32 is 2. The upper support cap 21 of the primary filter net 20 is integrally connected so that the sludge is separated out by the centrifugal force while the secondary filter net 20 rotates during the rotation of the washing motor 32.

The filter net washing means 30 of the present invention includes the parallel washing of the sludge by the high-pressure water injection zone 33 and the sludge removing blade 35 together with the removal of the natural sludge by the centrifugal force. The station 33 is installed in the inner center of the secondary filter network 20 and is connected to the water supply pipe 25a while penetrating to the outside of the connecting pipe 25 so that water can be supplied. 34 is installed to remove the sludge stuck to the secondary filter net 20 by spraying high pressure water to the secondary filter net 20 which rotates through the injection nozzle (34).

In addition, the sludge removal blade 35 is attached to the removal blade fixing plate 36, which is extrapolated to the upper and lower parts of the reinforcing bar 27 by rotation, and the blade end is in close contact with the outer circumferential surface of the secondary filter net 20. When the primary filter net 20 is rotated to remove the sludge firmly fixed to the outer peripheral surface. Here, the removal blade fixing plate 36 is connected to the motor bracket 31 and the filtering net support plate 24 by the tension springs 37, respectively, so that the sludge removing blade 35 is in close contact with the outer circumferential surface of the secondary filtering net 20. To pull as much as possible.

On the other hand, the sewage pump 40 forcibly pumps the sewage of the sludge tank 4 to pass through the primary and secondary filtration nets 10 and 20, so that the sludge and the sewage of relatively large particles are preferentially filtered. It is supplied to the hydrocyclone 50, which is the first process for filtration in earnest.

The sewage supplied by the sewage pump 40 is separated into sludge and clean sewage water by a pair of hydrocyclones 50, and the sewage is distributed and supplied through the sewage supply pipe 51, and the sewage supplied is hydrosy The clone 50 is separated into sludge and separation water by centrifugal force due to the generation of swirl flow. At this time, the sludge is collected to the bottom and at the same time, the separation water forms a rising swirling vortex to be collected by the separation water collecting pipe 52 of the upper, so that the sludge contained in the sewage can be automatically separated.

A pair of primary microfilters 60, which are finely filtered firstly and finely sludge that are not separated, are supplied with separation water in a state in which sludge is separated by the hydrocyclone 50, as shown in FIGS. As described above, the fine water sludge which is not separated in the process of receiving the separated water collected in the separated water collecting pipe 52 of the hydrocyclone 50 through the primary separated water supply pipe 61 and the three-way valve 62 is primarily filtered. In order to generate clean filtrate, the filtrate is collected into the lower primary filtrate collecting tube (63).

In addition, the pair of secondary microfilters 70 for secondarily filtering the filtered water collected in the primary filtered water collecting pipe 63 may collect the filtered water collected in the primary filtered water collecting pipe 63 and the secondary filtered water supply pipe 71. And secondly filtering the fine sludge which has not been supplied through the three-way valve 72 to filter the sludge, which is not filtered, and collects the filtrate into the lower secondary filtered water collecting pipe 73, and then the water tank (3). By re-introducing the furnace, even if the work is continued for a long time, it provides a convenience that can be used to recycle the sewage itself without the hassle of supplying a separate water to the water tank (3).

Here, the fine sludge filtered by the first and second fine filters 60 and 70 is stuck to the outer surface of the filter installed therein, unlike the sludge separated from the hydrocyclone 50 is collected downward. When the vacuum suction force is applied to recover the sludge, sludge flows back through the three-way valves 62 and 72 and is collected by the sludge collecting pipes 64 and 74 connected to the lower side of the three-way valves 62 and 72. Lose.

Therefore, the sludge separated downward by the hydrocyclone 50 and the sludge stuck to the inner filter outer surface of the first and second fine filters 70 are sludge recovery pipes 55 and 65 by a vacuum suction force that is periodically operated. After collecting the sludge into the sludge 80, it is recovered to the sludge tank (4).

The sludge loader 80 is installed in the upper part of the sludge tank 4 to communicate with the sludge tank 4 as shown in Figure 16 to 17, the cylinder mechanism (4a) in the conduit (4a) connected to the sludge tank (4) The sludge intake valve 82 which is periodically opened and closed by 81 is installed to apply a vacuum suction force to selectively recover the sludge only when the sludge intake valve 82 is opened, thereby giving no resistance to the usual recycling of sewage. Do not.

The recycling process of the sewage (sludge, dirt containing) recovered in the sludge tank 4 by the present invention having such a configuration will be described.

First of all, when the vacuum pump 6 is operated, wastewater is recovered to the sludge tank 4 by the suction pipe 8.

The sewage collected in the sludge tank 4 is forcibly pumped by the operation of the sewage pump 40, and at this time, the sludge and the dirt of the large particles are first filtered while passing through the primary filtering net 10, and then the filtration space. Sewage and sewage are filtered again while the sewage introduced into the (12) and introduced into the filtration space 12 passes through the secondary filter net 20.

Sewage and sludge of relatively large particles filtered through the first and second filter nets 10 and 20 are supplied to the hydrocyclone 50 so that the sludge can be separated in earnest. Are separated into each.

Here, the sludge is collected in the lower portion, while the separation water is collected into the separation water collecting pipe 52 at the upper side, and then supplied to the primary separation water supply pipe 61 through the transfer pipe 52a, and sequentially through the three-way valve 62. The fine sludge which has not been separated even though the hydrocyclone 50 is separated by the primary fine filter 60 is filtered.

The filtered water filtered by the primary fine filter 60 is collected into the primary filtered water collecting pipe 63 and then supplied to the secondary filtered water supply pipe 71 through the transfer pipe 52a, and sequentially the three-way valve 72. Secondary fine sludge is also filtered by the secondary fine filter 70 via

The clean filtrate filtered by the secondary fine filter 70 is collected by the secondary filtration tube 73 and then re-introduced into the water tank 3 to supply extra water to the water tank 3. Sewage can be filtered and reused on its own.

Meanwhile, the sludge suction valve 82 is periodically opened while the wastewater is recycled, and the sludge separated by the hydrocyclone 50 and the sludge filtered by the first and second fine filters 60 and 70 when opened. The vacuum is automatically suctioned and collected through the sludge recovery pipes 55, 65, 75 to the sludge dripper 80, and then recovered to the sludge tank (4).

That is, the sludge suction valve 82 installed in the conduit 4a between the sludge loader 80 and the sludge tank 4 is periodically operated by the cylinder mechanism 81, and the vacuum suction force for selectively recovering the sludge only when opened. By applying a vacuum suction force is applied to the separated water collecting pipe 52 and the first and second fine filter 60, 70 is separated and filtered water is supplied by the hydrocyclone at the same time the supply is cut off The separated sludge is recovered through the sludge recovery pipe 55, while the sludge filtered by the primary and secondary fine filters 60 and 70 flows backward through the three-way valves 62 and 72 to the three-way valve 62. (72) After being collected by the sludge collection pipe (64) 74 connected to the lower side is collected by the sludge collector 80 through the sludge recovery pipe (65) 75 is recovered to the sludge tank (4) as a rain.

On the other hand, when the filtered water flowing back into the water tank (3) reaches the full water level, although not shown in the drawing, the water level sensor detects this and automatically stops the operation of the sewage pump 40 to prevent recycling of sewage more than necessary. Done.

In addition, when the sewage collected in the sludge tank 4 reaches the low water level, the low water level sensor detects this and automatically stops the operation of the sewage pump 40 to prevent the sewage pump 40 from being damaged due to the waste driving.

The present invention is a large sludge and dirt contained in the sewage recovered by the sludge tank is filtered by the primary and secondary filtration network, and then separated into sludge and clean separation water by hydrocyclone, respectively, sequentially The fine sludge is completely filtered by the fine filter and then recycled again into the water tank to be reused as high pressure water to remove the sludge and dirt, while the sludge is recovered to the sludge tank to generate wastewater. This is drastically reduced and there is no hassle to continuously supply extra water to the water tank.

This drastically reduces the treatment costs associated with continuous water supply and large amounts of sewage treatment, thereby improving economic efficiency and providing the effect of continuously dredging without interrupting work.

Claims (10)

The vehicle 2 is equipped with a double tank 5 divided into a water tank 3 and a sludge tank 4, and the sludge and dirt deposited in the pipeline by spraying the water stored in the water tank 3 with a high pressure spray pump. In the dredging car 1 which scrapes off and collects wastewater containing sludge and dirt by using a vacuum pump 6 and recovers it to the sludge tank 4, A primary filter net (10) curvedly attached to have a filtration space (12) on the inner side of the hatch (11) of the sludge tank (4); The upper support cap 21 is coupled to the filter space 12 while the upper support cap 21 is coupled to the upper end, and the lower support cap 22 having the rotary end portion 22a of the open shape is coupled to the lower end, and the upper support cap ( 21 is integrally connected to the motor shaft (32a) of the washing motor 32 installed in the motor bracket (31) attached to the hatch (11), while the support cap (22) is a friction preventing ring (23) The connecting pipe 25 is rotatably fitted to the rotary end portion 24a of the filter net support plate 24, and is connected to the lower filter net support plate 24 so as to communicate with the secondary filter net 20. It is integrally coupled to the discharge pipe 26 penetrated to the outside, the four sides of the motor bracket 31 and the filter network support plate 24 is cylindrical secondary filter nets 20 connected to the reinforcement bar 27; A washing motor 32 installed in the motor bracket 31 attached to the inner side of the hatch 11 and applying a rotational force to the secondary filter net 20 which is integrally connected to the motor shaft 32a, and the secondary filter net. High pressure water is injected into the secondary filtration network 20 which is installed in the center of the sieve 20 and penetrates to the outside of the connecting pipe 24 so that water can be supplied and rotates through a plurality of injection nozzles 34 installed at predetermined intervals. It is attached to the high-pressure water jet 33 and the removal blade fixing plate 36 which is in close contact with the outer circumferential surface of the secondary filtration net 20, and extrapolated to the upper and lower portions of the reinforcing bar 27 to rotate. 20) the sludge removal blade 35 to remove the sludge attached to the outer peripheral surface during rotation, and the sludge removal blade 35 is connected between the removal blade fixing plate 36 and the motor bracket 31 and the filter net support plate 24 A filter net washing means (30) comprising a tension spring (37) for pulling in close contact with the outer circumferential surface of the secondary filter net (20); A sewage pump 40 for supplying sewage through the primary and secondary filtration nets 10 and 20 to a hydrocyclone 50 through a sewage supply pipe 51; The sludge separated from the sewage distributed through the sewage supply pipe 51 is collected into the sludge loader 80 through the sludge recovery pipe 55 and then recovered to the sludge tank 4, and the separated water except the sludge is separated from the upper portion of the sludge. A pair of hydrocyclones 50 collected by the collecting pipe 52; The separated water collected in the separated water collecting pipe 52 is distributed and supplied through the primary separated water supply pipe 61 and the three-way valve 62 to generate filtered water, while the filtered water is collected into the lower primary filtered water collecting pipe 63. And, the sludge except the filtered water is collected in the sludge loader 80 through the sludge recovery pipe (65) and then a pair of primary fine filter 60 that is recovered to the sludge tank (4), The primary filtrate collected in the filtrate collecting pipe 63 is distributed and supplied through the secondary filtrate supply pipe 71 and the three-way valve 72 to generate filtrate, while the filtrate is a lower secondary filtrate collecting pipe 73. After being collected into the water tank (3) and re-introduced to the sludge, except for the filtered water is collected into the sludge loader 80 through the sludge recovery pipe (75) and a pair of secondary fine filter that is recovered to the sludge tank (4) 70); The sludge separated by the hydrocyclone (50) and the sludge filtered by the first and second fine filters 60, 70 by vacuum suction of the sludge tank (80) to recover to the sludge tank (4) Sewage recycling device for dredging cars. The method according to claim 1, Water tank (3) sewage recycling apparatus for dredging cars, characterized in that the water level sensor for detecting the full water level of the filtered water re-introduced into the water tank (3). The method according to claim 1, Sludge tank (4) sewage recycling equipment for dredging cars, characterized in that the low water level sensor for detecting the low water level of sewage collected in the sludge tank (4). The method according to claim 1, Sludge suction valve 80, characterized in that the sludge suction valve 80, which is periodically opened and closed by the cylinder mechanism 81 is installed in the pipe line (4a) between the sludge loader 80 and the sludge tank (4). The method according to claim 1, The sludge of the first and second fine filters 60 and 70 is flowed back through the three-way valves 62 and 72 and collected into the sludge collection pipes 64 and 74 connected to the lower side of the three-way valves 62 and 72. After the sludge recovery pipe (65) (75) through the sludge dripper 80, sewage recycling apparatus for dredging cars, characterized in that. delete delete delete delete delete