KR20070108043A - Sewer cleaner truck - Google Patents

Abstract

A dredging truck is provided to reduce work time and to improve work efficiency by separating only sludge in the truck and directly hauling the sludge to a waste processing place through a transportation vehicle. A dredging truck comprises a sludge discharging pipe(200), a transfer screw(240) and an air discharge pipe(136). The sludge discharging pipe is installed in one portion of a sludge tank(120). The transfer screw is installed inside of the sludge discharging pipe so as to be rotated by a motor(M) so that only sludge is discharged along the transfer screw. The air discharge pipe for supplying air for discharging the sludge is connected to the one portion of the sludge tank. The air discharge pipe is connected to a vacuum pump(130) and supplies high pressure air.

Description

Dredger {Sewer cleaner truck}

1 is a partial cross-sectional view showing the configuration and use state of a general dredging vehicle,

2 is a side view showing a dredging car according to the present invention,

3 is a partial cross-sectional view taken along line A-A of FIG. 2 to explain the sludge discharge structure applied to the dredger according to the present invention;

Figure 4 is a side view showing another embodiment of the dredger according to the invention,

5 is a use state diagram of the present invention,

Figure 6 is a side cross-sectional view showing to explain another embodiment of the sludge discharge structure applied to the dredger according to the invention,

7 is a cross-sectional view taken along the line B-B in FIG.

◎ Explanation of symbols for main part of drawing

100: body 110: water tank

120: sludge tank 122: suction pipe

124: open door 126: drain

127: space 128a: drain hole

128: Slope 129: collection space

130: vacuum pump 132: air suction pipe

134: filter barrel 136: air discharge pipe

138-1: 1st air discharge pipe 138-2: 2nd air discharge pipe

139: air inlet pipe 160: guide feed screw

200: sludge discharge pipe 210: first discharge path

212: entrance 220: second discharge passage

230: third outlet 232: exit

240: transfer screw 250: discharge screw

B1: Drain valve B2: Shut-off valve

F: Flange M: Motor

S: pure sludge T: vehicle

W: Sewage

The present invention relates to a dredging vehicle, and more specifically, to separate the waste deposited in the sludge tank into sewage and pure sludge to drain the sewage and to load the pure sludge directly into the loading box of another transport vehicle using a transfer screw and a vacuum pump. It is about a dredging vehicle that can be transported directly to a waste disposal plant.

In general, in the stagnant section inside the sewer pipe, concrete corrosives, various wastes and sludges that fall off the inner wall accumulate, and the sediment not only prevents the smooth drainage of sewage, but also the sewage pipe is gradually blocked. As the pressure increases, the sewage flows out of the gaps such as pipe joints and cracks, which causes a serious problem of contaminating soil as well as groundwater. In addition, sediment causes a problem that sewage flows back during the rainy season or during heavy rains.

Therefore, in order to prevent this risk, dredging work is required to periodically clean sewage pipes to remove sediments so as not to disturb the flow of sewage. And such dredging work is usually performed by dredging cars. That is, the sewage pipe which is blocked by the ultra high pressure water injection method using the high pressure jet jet cleaner equipment is drilled, and the sludge which is separated from the sewage pipe is recovered by the vacuum suction method using the vacuum pump.

Referring to FIG. 1, a conventional dredging vehicle 1 has a double tank 5 mounted on a vehicle body 2, and the double tank 5 is used as high pressure water for scraping sludge and dirt from a sewer pipe. It is configured to be separated into the water tank (3) to be stored and the sludge tank (4) for recovering the sludge by vacuum after the dredging operation. And the water stored in the water tank (3) is injected at a high pressure through a high pressure spray pump (not shown) and at the same time provides a driving force of the jet nozzle (6), the jet nozzle (6) is deposited in the sewer pipe by the driving force Sludge and dirt are crushed. In addition, a portion of the vehicle body 2 is provided with a vacuum pump 7, which is connected to the suction pipe 8, when the vacuum pump (7) is operated using the suction pipe (8) sludge and It is made of a structure for recovering the sludge tank 4 by suctioning the sewage containing the dirt.

This conventional dredging car has no problem in performing the fundamental purpose of removing sludge and sewage in the sewage pipe, but there was a problem in the post-treatment work to treat the sludge and sewage that is recovered to the sludge tank during dredging work. In other words, since the waste treatment shop does not accept the mixed waste of sludge and sewage, it was necessary to separate the sludge and sewage when the waste is treated. Therefore, in the prior art, the open door provided in the sludge tank is opened and the sludge and sewage stored in the sludge tank are first transferred to a separate loading box (a specially designed loading box for separating sludge and sewage), and the sewage is separated from the loading box. After draining, the sludge was disposed of again by transporting the sludge back to a separate vehicle (eg, dump truck, etc.) to a waste disposal plant.

As described above, the sludge treatment operation is very inconvenient and cumbersome. In addition, there is a problem in that the yard where the loading box is installed is limited because the loading box for separating sludge and sewage is expensive and smells bad. In other words, the transport of the sewage sludge to the place where the loading box is installed is also very inconvenient because of the lack of the installation place of the loading box, and there is a problem in that it takes much time and money.

The present invention has been made to solve the various problems as described above, the purpose is to separate the waste recovered in the sewage pipe into pure sludge and sewage by sedimentation in the sludge tank, the sewage through the drain It is to provide a dredging vehicle that drains and transfers pure sludge only to a separate means of transportation using a transfer screw and a vacuum pump to be transported directly to a waste disposal plant.

In order to achieve the above object, the dredging vehicle according to the present invention maintains the inside of the sludge tank through a vacuum pump, and in the dredging car to recover the sludge and sewage in the sewage pipe by vacuum suction through the suction pipe associated with the sludge tank. The sludge discharge pipe is installed at a portion of the sludge tank, and the sludge discharge pipe is rotatably installed by a motor so that only pure sludge is discharged along the transfer screw, and a portion of the sludge discharge pipe is discharged pure sludge. An air discharge pipe is connected to supply air to help the air discharge pipe is connected to the vacuum pump is characterized in that configured to supply a high pressure air through the vacuum pump.

The sludge discharge pipe has a first discharge path inclined so that the inlet faces the bottom surface of the sludge tank, a second discharge path vertically installed at the end of the first discharge path, and an outlet at the lower end of the second discharge path. It consists of a third discharge passage is installed inclined upwardly to be located in the, the transfer screw is installed only in the first discharge passage is configured to drop the pure sludge discharged along the transfer screw to the second discharge passage, the air discharge pipe Characterized in that it is installed to supply air to the portion communicating with the third discharge passage from the lower end of the second discharge passage.

And a part of the sludge discharge pipe and the connection portion of the sludge discharge pipe and the air discharge pipe is characterized in that it is configured to be selectively connected / disconnected by the flange portion, respectively.

And the slant tank is installed on the bottom of the guide inclined plate having a predetermined angle is configured so that the sludge is introduced into one place, the inlet of the sludge discharge pipe is characterized in that it is installed to face the bottom of the sludge gathering place.

And the sludge tank rear surface is formed with a plurality of drain holes for discharging the internal sewage at a predetermined interval up and down, each drain is characterized in that it is configured to discharge the sewage is installed drain valve that is selectively opened and closed. .

In addition, the dredging vehicle according to the present invention in order to achieve the above object is to maintain the vacuum in the sludge tank through a vacuum pump, and the dredging to recover the sludge and sewage in the sewage pipe through the suction pipe associated with the sludge tank to recover the sludge tank. In the vehicle, the guide slant plate is installed inclined to the bottom in the sludge tank to guide the collected pure sludge to the middle portion of the bottom of the sludge tank, the guide inclined plate to form a collecting space at the bottom end of the sludge tank; A guide conveying screw horizontally positioned in the middle of the bottom of the sludge tank and selectively installed to be rotatable by a motor to transfer the pure sludge collected in the middle of the bottom to a collecting space; A discharge pipe installed vertically so that the inlet is located in the collection space, and having an outlet extending in one direction at an upper end thereof; And a discharge screw for discharging the sludge which is selectively rotatably installed by the motor inside the discharge pipe to pull up the pure sludge which is guided to the collection space and transfers it to the outlet.

And the air discharge pipe which is supplied with air for forcibly discharging the pure sludge guided to the outlet on the opposite side corresponding to the outlet of the discharge pipe is installed in communication, the air discharge pipe is connected to the vacuum pump is a strong pressure discharged from the vacuum pump It is characterized in that configured to guide the supply of air.

In addition, a plurality of drainage holes are formed in the guide inclination plate so that wastewater can be drained into the space between the guide inclination plate and the bottom surface of the sludge tank, and at least one drain hole is formed in a part of the sludge tank corresponding to the space. The drain port is installed to selectively open and close the drain valve, it is also characterized in that the filter is installed to filter out the pure sludge and discharge only the sewage through the drain valve.

The object of the present invention described above will become more apparent from the preferred embodiment of the present invention described below with reference to the accompanying drawings.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 2 is a side view showing a dredging vehicle according to the present invention, Figure 3 is a partial cross-sectional view taken along line AA of Figure 2 shown to explain the sludge discharge structure in the dredging vehicle according to the present invention, Figure 4 is 5 is a side view showing another embodiment of the dredging vehicle, Figure 5 is a state diagram used in the present invention.

2 and 3, the dredging vehicle according to the present invention is a double tank is mounted on the vehicle body 100, the double tank is a water tank 110 in which water used as high pressure water in the high-pressure jet jet cleaner operation is stored. And, after the dredging operation is divided into a sludge tank 120 for recovering and storing the vacuum suction through the suction pipe 122. And a portion of the water tank 110 is connected to a high pressure water pump (not shown) for spraying the stored water at a high pressure, the sludge tank 120 is connected to the vacuum pump 130 is installed through the air suction pipe 132 It is configured to maintain the inside of the sludge tank 120 in a vacuum state. And between the air suction pipe 132 and the sludge tank 120 is provided with a filter 134 for filtering the air sucked.

In particular, the dredging car according to the present invention is provided with a sludge discharge pipe 200 for discharging only pure sludge (S) excluding the sewage (W) in a portion of the sludge tank 120, a portion of the sludge discharge pipe 200 An air discharge pipe 136 for supplying air to assist the discharge of the sludge (S) is connected and installed, the air discharge pipe 136 is connected to the vacuum pump 130 to supply a high pressure air through the vacuum pump 130 It is configured to be able to supply.

The sludge tank 120 is configured so that the pure sludge precipitated by the guide inclined plate 128 having a predetermined angle on the inner bottom is collected, and the inlet 212 of the sludge discharge pipe 200 is pure sludge (S). ) Is installed along the guide inclined plate 128 to face the gathering place. And the rear door of the sludge tank 120 is provided with an open door 124 to open and close the inside in the center portion, and discharges the sewage (W) of the interior at predetermined intervals up and down around the open door 124. A plurality of drain holes 126 are formed, and each of the drain holes 126 is provided with a drain valve B1 that is selectively opened and closed so that the wastewater W can be discharged for each floor.

The sludge discharge pipe 200 has a first discharge path 210 installed inclined so that the inlet 212 faces the bottom surface of the sludge tank 120, and a second discharge vertically installed at the end of the first discharge path 210. The third discharge path 230 is installed to be inclined upwardly so that the outlet 220 and the outlet 232 at the lower end of the second discharge path 220 is located above the loading box of the other transportation means T, such as a dump truck. ) And since the sludge discharge pipe 200 has a long total length, a part of the second discharge path 220 is configured to be selectively connected / removable through the flange part F so as to be convenient when the vehicle is driven.

A conveying screw 240 for conveying pure sludge S is installed in the first discharge path 210, and the conveying screw 240 is selectively connected to a shaft of the motor M provided at a part thereof. It is possible to install. Here, the first discharge path 210 is installed to be inclined and configured to transport and discharge the pure sludge S through the internal conveying screw 240, the sewage (W) together with the pure sludge (S) sludge discharge pipe 200 Is not to be transported along. That is, when the pure sludge S is guided and discharged upward along the conveying screw, the sewage W automatically falls into the sludge tank 120 and, as a result, is not discharged together with the sludge. In addition, the transfer screw 240 is installed only in the first discharge path 210 is the pure sludge S discharged along the transfer screw 240 is the second discharge path 220 at the end of the first discharge path (210). To fall naturally).

The air discharge pipe 136 installed in association with the vacuum pump 130 is installed to supply air to a portion communicating with the third discharge path 230 at the lower end of the second discharge path 220. At this time, the air discharge pipe 136 and the sludge discharge pipe 200 is preferably connected to the flange portion (F) is configured to be selectively connected / disconnected.

The air discharge pipe 136 of the vacuum pump 130 may be composed of one air discharge pipe communicating with the second discharge path 220, but preferably, the first air discharge pipe 138- communicated with the atmosphere as shown. 1) and the second air discharge pipe 138-2 communicating with the second discharge path 220 may be configured to be divided. That is, when suctioning the sewage sludge through the suction pipe 122, the air in the sludge tank 120 is sucked through the air suction pipe 132 to be directly discharged to the atmosphere through the first air discharge pipe 138-1. When the air is supplied to discharge the pure sludge S guided through the sludge discharge pipe 200, the air is sucked through the air suction pipe 132 while the drain valve B1 is opened. Air is forcibly discharged to the third discharge path 230 through the second air discharge pipe 138-2. In this case, the first air discharge pipe 138-1 and the second air discharge pipe 138-2 may be provided with a known shut-off valve B2 that is selectively opened and closed, respectively, to determine whether the air discharge pipe is selectively opened or closed.

Meanwhile, in this embodiment, when the vacuum pump 130 is operated, the air in the sludge tank 120 is sucked through the air suction pipe 132 to be discharged and supplied to the sludge discharge pipe 200, but is illustrated in FIG. 4. As described above, the air inlet pipe 139 is installed in communication with a part of the air inlet pipe 132, and a well-known shut-off valve B2 is installed in the air inlet pipe 139 and the air inlet pipe 132, respectively, to vacuum sewage sludge vacuum. In operation, the shutoff valve B2 of the air inlet pipe 132 may be opened, and the shutoff valve B2 of the air inlet pipe 139 may be opened in the pure sludge discharge operation.

The dredging vehicle according to the present invention configured as described above can be suctioned and vacuumed into the sludge tank 120 by vacuum suction of the sludge generated when dredging the sewer pipe, etc., and stored in the sludge tank 120. After separating the sludge into sewage (W) and pure sludge (S) by sedimentation as shown in Figure 3, the sewage (W) is drained separately through the drain 126 and the pure sludge (S) is the sludge discharge pipe ( 200) there is an advantage that can be directly loaded to another transport means transported to the waste treatment plant.

That is, during the sewage sludge vacuum suction operation, the vacuum pump (with the shutoff valve B2 of the second air discharge pipe 138-2 blocked and the shutoff valve B2 of the first air discharge pipe 138-1 opened). By operating the 130 to suck the air in the sludge tank 120 through the air suction pipe 132 by vacuum suction the sewage sludge in the sewer pipe to the suction pipe 122 may be stored in the sludge tank 120.

When the sludge recovered into the sludge tank 120 is treated, sewage (W) and pure sludge (S) are separated by sedimentation, and the corresponding drain valve (B1) is opened to drain the sewage (W) first. .

Next, operating the vacuum pump 130 in a state where the shutoff valve B2 of the first air discharge pipe 138-1 is blocked and the shutoff valve B2 of the second air discharge pipe 138-2 is opened. In addition, by operating the motor (M) to operate the conveying screw 240 mounted on the sludge discharge pipe (200). Then, the pure water sludge S in the sludge tank 120 is transferred upward along the first discharge path 210 while the conveying screw 240 rotates, and the pure sludge conveyed along the conveying screw 240 is Falls downward from the second discharge path (220). At this time, since the air is forcibly supplied from the lower end of the second discharge path 220 to the exit direction of the third discharge path 230 through the second air discharge pipe 138-2, pure sludge S by the force of the air. ) Is forcibly transported upward along the third discharge path 230 and discharged and loaded into the loading box of another transportation means T as shown in FIG. 5. Of course, the pure sludge loaded on the vehicle will be transported directly to the waste treatment plant.

6 and 7 illustrate another embodiment of the sludge discharge structure applied to the dredger according to the present invention, and only different points from the sludge discharge structure according to the above-described embodiment are described below. .

The sludge discharge structure according to the present embodiment also similar to the sludge discharge structure according to the above-described embodiment, only the pure sludge (S) except the sewage (W) of the sludge introduced into the sludge tank 120 through the sludge discharge pipe 200 It is configured to discharge the guide.

Guide slant plate 128 is inclined at the bottom of the sludge tank 120 is configured to collect the pure sludge (S) to the middle portion of the bottom of the sludge tank 120, the sludge tank by the structure of the guide slant plate 128 The collection space 129 is formed at the bottom tip portion. In addition, a plurality of drain holes 128a are formed in the guide slope plate 128 so that the sewage water W may be drained into the space 127 formed between the guide slope plate 128 and the bottom surface of the sludge tank 120. Of course, at least one drain port 126 is formed in a portion of the sludge tank 120 corresponding to the space 127, and the drain port 126 is provided with a drain valve B1 that is selectively opened and closed. ) Can be discharged. At this time, it is preferable that a part of the drain port 126 or a part of the drain valve B1 is installed to filter out pure sludge and discharge only the sewage through the drain valve.

Next, in the middle portion of the bottom of the sludge tank 120, a guide conveying screw 160 for transferring the pure sludge S collected into the bottom middle portion to the collection space 129 is installed. At this time, the guide screw for feeding 160 is installed horizontally along the bottom middle portion, it is configured to be selectively rotated by the motor (M).

Next, the discharge pipe 200 is installed on the collection space 129 to eject the pure sludge S transferred to the collection space 129. That is, the inlet 212 of the discharge pipe 200 is installed vertically to be located in the collecting space 129 and is configured to have an outlet 232 extending in one direction at the top. In addition, a discharge screw 250 for discharging the pure sludge S guided to the collection space 129 to be transferred to the outlet 232 is installed inside the discharge pipe 200. Of course, the discharge transfer screw 250 is also installed to be selectively rotated by the motor (M).

Next, the air discharge pipe 136, which is supplied with air for forcibly discharging the pure sludge S guided to the outlet 232, is installed on the opposite side corresponding to the outlet 232 of the discharge pipe 200 in communication with the outlet 232. The air discharge pipe 136 is connected to the vacuum pump 130 is configured to guide and supply the air of a strong pressure discharged from the vacuum pump 130. Here, since the structure and principle of supplying air to the air discharge pipe 136 using the vacuum pump 130 are the same as in the above-described embodiment, a detailed description thereof will be omitted.

The dredging vehicle according to the present invention having the sludge discharge structure configured as described above may be recovered and stored in the sludge tank 120 by vacuum suctioning the sludge generated when dredging the sewer pipe, etc., as described above through the suction pipe 122. Rather, after separating the sludge stored in the sludge tank 120 into sewage (W) and pure sludge (S) by sedimentation, the sewage (W) is drained separately through the drain 126 and the pure sludge (S) is sludge The discharge pipe 200 has an advantage that can be directly loaded into another transport means to be transported to the waste treatment plant.

That is, during sewage sludge vacuum suction operation, by operating the vacuum pump 130 to suck the air in the sludge tank 120 through the air suction pipe 132 by vacuum suction the sewage sludge in the sewer pipe by the suction pipe 122 It may be stored in the sludge tank 120.

When the sludge recovered into the sludge tank 120 is treated, sewage (W) and pure sludge (S) are separated by sedimentation, and the corresponding drain valve (B1) is opened to drain the sewage (W) first. .

Next, the guide feed screw 160 is rotated to force the pure sludge S to be collected into the collecting space 129. At the same time, by rotating the discharge transfer screw 250 to pull the pure sludge (S) guided to the collecting space 129 through the inlet 212 of the discharge pipe 200 to the outlet 232 of the discharge pipe 200. Transfer. And when supplying a high pressure air to the air discharge pipe 136 through the vacuum pump 130, the pure sludge (S) transferred toward the outlet 232 is smoothly discharged through the air of a strong pressure. Of course, the pure sludge S discharged through the outlet 232 is loaded into the loading box of another separate transportation means T, and is directly transported to the waste treatment station.

As described above, the dredging car according to the present invention is sewage sludge recovered into the sludge tank is separated into sewage and pure sludge by sedimentation, the sewage is discharged separately to the sewage and pure sludge but using the air discharged from the vacuum pump There is an effect that can be carried directly to the transport vehicle by the operation. That is, in the present invention, since pure sludge is directly removed from a dredger, it can be directly transported to a waste treatment station through a transportation method such as a dump truck. There is no inconvenience to send to the waste treatment plant after separation, but pure sludge, thus reducing the field work time and improving workability.

While the invention has been shown and described in connection with specific embodiments as described above, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

Claims (8)

In the dredging car which maintains the inside of the sludge tank by a vacuum pump and vacuum sucks the sludge and sewage in the sewage pipe through the suction pipe connected with the sludge tank to recover the sludge tank. Sludge discharge pipe is installed in a portion of the sludge tank, the sludge discharge pipe is installed so that the transfer screw is rotatably installed by the motor so that only pure sludge is discharged along the transfer screw, and a portion of the sludge discharge pipe discharges the pure sludge. Dredger car is characterized in that the air discharge pipe is supplied with air to help, the air discharge pipe is connected to the vacuum pump is configured to supply a high pressure air through the vacuum pump. The method of claim 1, The sludge discharge pipe has a first discharge path installed inclined so that the inlet faces the bottom surface of the sludge tank, a second discharge path vertically installed at the end of the first discharge path, and an outlet at the lower end of the second discharge path. It consists of a third discharge passage installed inclined upwardly to position, The transfer screw is installed only in the first discharge path is configured to fall pure sludge discharged along the transfer screw to the second discharge path, The dredging vehicle, characterized in that the air discharge pipe is installed to supply air to the portion communicating with the third discharge passage from the lower end of the second discharge passage. The method of claim 2, A portion of the sludge discharge pipe and the connection portion of the sludge discharge pipe and the air discharge pipe is connected to the flange portion, respectively, dredging, characterized in that configured to be selectively connected / disconnected. The method according to claim 1 or 2, Dredge cars, characterized in that the inclined guide plate is installed on the bottom of the sludge tank is installed so that the sludge is introduced into one place, the inlet of the sludge discharge pipe toward the bottom of the place where the sludge is collected. . The method according to claim 1 or 2, Dredging is characterized in that the rear of the sludge tank is formed with a plurality of drain holes for discharging the internal sewage at predetermined intervals up and down, each drain is provided with a drain valve that is selectively opened and closed to discharge the sewage car. In the dredging car which maintains the inside of the sludge tank by a vacuum pump and vacuum sucks the sludge and sewage in the sewage pipe through the suction pipe connected with the sludge tank to recover the sludge tank. A guide inclination plate installed to be inclined at the bottom of the sludge tank to guide the pure sludge into the middle portion of the bottom of the sludge tank, and a collection space is formed at the bottom end of the sludge tank; A guide conveying screw horizontally positioned at a middle portion of the bottom of the sludge tank and selectively installed to be rotatable by a motor to transfer pure sludge collected at the middle portion of the sludge to a collecting space; A discharge pipe installed vertically such that an inlet is located in the collection space, and having an outlet extending in one direction at an upper end thereof; And Dredger, characterized in that configured to include a discharge screw for transporting to the outlet to raise the pure sludge which is selectively rotatably installed by the motor in the discharge pipe guided to the collection space. The method of claim 6, On the opposite side corresponding to the outlet of the discharge pipe, an air discharge pipe for supplying air for forcibly discharging the pure sludge guided to the outlet is installed in communication with the air discharge pipe, which is connected to the vacuum pump and is discharged from the vacuum pump. Dredging car, characterized in that configured to be guided to supply the air. The method according to claim 6 or 7, A plurality of drainage holes are formed in the guide inclination plate so that wastewater can be drained into the space between the guide inclination plate and the bottom surface of the sludge tank, and at least one drain hole is formed in a portion of the sludge tank corresponding to the space. Dredging car is characterized in that the drain valve is selectively installed to open and close, and also a filter is installed to filter out the pure sludge and discharge only the sewage through the drain valve.

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