KR100809611B1 - Apparatus for transferring sludge using 3-way valve - Google Patents

Abstract

An apparatus for transporting sludge is provided to reduce the manufacturing cost and the maintenance cost and shorten the maintenance time, by using a three-way valve to simplify the structure of the apparatus. An apparatus for transporting sludge comprises a pumping cylinder(120) and a pumping tube(110), wherein the pumping cylinder includes a piston ram(121) reciprocating within the pumping tube. A three-way valve(130) connects the pumping tube, a sludge-discharging tube(150), and a trumpet-shaped input tube(140) for supplying the sludge therethrough. When the pumping cylinder performs a suction operation, the three-way valve forms a flow channel where the pumping tube and the sludge are connected. When the pumping cylinder performs a discharge operation, the three-way valve forms a flow channel where the pumping tube and the discharge tube are connected.

Description

Apparatus for transferring sludge using 3-way valve}

1 is a cross-sectional view showing a conventional sludge conveying apparatus,

Figure 2 is a side view of the sludge conveying apparatus according to an embodiment of the present invention,

3 is a plan view of the sludge conveying apparatus shown in FIG.

FIG. 4 is a cross-sectional view of a portion of FIG. 2;

5 is a sectional view of a three-way valve according to the present invention;

6 is a cross-sectional view showing a state in which the rotating body is rotated for the suction of sludge;

7 is a plan view of the sludge conveying apparatus according to another embodiment of the present invention,

8 is a side view of the sludge conveying apparatus shown in FIG.

<Description of the symbols for the main parts of the drawings>

(100): base 110: pumping pipe

120: pumping cylinder 121: piston ram

130: three-way valve 140 inlet trumpet tube

150: discharge tube 160: cooling water tank

211: first pumping pipe 212: second pumping pipe

Reference numeral 221: first pumping cylinder 222: second pumping cylinder

231: first three-way valve 232: second three-way valve

The present invention relates to a sludge conveying apparatus for conveying sludge generated in various industrial sites or wastewater treatment plants, and more particularly, to a sludge conveying apparatus using a three-way valve with a simplified structure using a three-way valve.

In general, sludge is a mud-type waste that contains a lot of water and is generated in various industrial sites, wastewater treatment plants, and food treatment plants. Since the sludge contains many organic substances, if it is disposed of as it is, it becomes a factor of environmental pollution such as polluting the soil, groundwater and seawater due to the decay of organic substances, and the generated sludge is recycled or incinerated through a predetermined treatment process. have.

On the other hand, the pump is often used for the transport of the sludge in the treatment of the sludge as described above, there is a closed end impeding the impeller of the pump or clogged inlet and outlet by various foreign substances included in the sludge to prevent the smooth pumping. In order to prevent damage to the impeller due to foreign matters, a filter net was installed on the suction port side of the pump, but foreign matters caught in the filter net acted as a cause of sludge flow, which caused a load on the pump. .

In consideration of the above problems, the Utility Model Publication No. 0244822 discloses a sludge conveying apparatus which sucks and discharges sludge by reciprocating a piston. The sludge conveying apparatus is disclosed in FIG. 1. In the sludge conveying apparatus, a main cylinder 7 is installed in a pumping tube 5 connected perpendicularly to a conveying tube 4 through which sludge is conveyed. In the piston 6 is configured to move, the suction valve 8 and the discharge valve 11 is provided to intermittent the transfer of the sludge on both sides of the front and rear of the transfer pipe (4) relative to the pumping pipe (5) Consists of. Since the sludge conveying apparatus is not a method of conveying sludge by the rotation of the impeller, there is no fear of damage to the impeller due to the sludge, and in particular, there is an advantage in the pressure feeding of the sludge with high viscosity.

However, in the conventional sludge feed apparatus as described above, after the piston is lifted in the state in which the suction valve is opened to suck a certain amount of sludge, the suction valve is closed and the piston descends while the discharge valve is opened to discharge the sludge. The manufacturing cost and the volume of the device are increased due to the use of two valves for the intake and discharge of the sludge. Furthermore, the maintenance / maintenance cost is required for the continuous operation and maintenance of the two valves for the smooth operation of the device. There is also an increasing problem.

The present invention has been made in view of the above problems, and an object of the present invention is to simplify the structure by using a three-way valve, and by reducing the structure can reduce the manufacturing cost and maintenance cost and time. The present invention provides a sludge conveying apparatus using a three-way valve.

The present invention to achieve the object as described above and to perform the problem for eliminating the conventional drawback is provided with a pumping cylinder having a horizontally arranged pumping pipe, and a piston ram for reciprocating movement inside the pumping pipe In the sludge feeder,

The pumping pipe and the discharge pipe discharged with the sludge and the inlet trumpet supplied with the sludge are connected, and when the suction operation of the pumping cylinder to form a flow path for connecting the pumping pipe and the inlet trumpet tube, and during the discharge operation of the pumping cylinder Sludge transfer device having a three-way valve for forming a flow path connecting the pumping pipe and the discharge pipe.

The sludge conveying apparatus as described above can control the flow path for the suction and discharge of the sludge by using two different valves as one three-way valve to provide structural simplicity and ease of maintenance / maintenance. do.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Figure 2 shows a side view of the sludge conveying apparatus according to an embodiment of the present invention, Figure 3 shows a plan view of the sludge conveying apparatus shown in Figure 2, Figure 4 is a cutaway portion of FIG. The cross section is shown. 2 to 4, the sludge conveying apparatus according to an embodiment of the present invention comprises a pumping pipe 110, a pumping cylinder 120 and a three-way valve 130, one of three It is configured to form a flow path for the suction and discharge of the sludge using the directional valve 130.

The pumping pipe 110 is arranged horizontally to provide a space for the sludge suction, is installed in the base 100 fixed to the ground.

The pumping cylinder 120 is installed at one end of the pumping pipe 110, and is provided with a piston ram 121 to reciprocate in the pumping pipe 110. The pumping cylinder 120 sucks the sludge by moving the piston ram 121 to the rear (left direction in FIG. 4), and moves the piston ram 121 to the front (right direction in FIG. 4) to make sludge. Discharge.

Meanwhile, the cooling water tank 160 for supplying the cooling water to prevent the piston ram 121 which reciprocates at a high speed in the pumping pipe 110 from being damaged due to heat generated by friction with the pumping pipe 110 is provided. It may be further included. The cooling water tank 160 is installed between the pumping pipe 110 and the pumping cylinder 120 to supply the cooling water to the rear end of the piston ram 121 through the pumping pipe 110.

5 shows a cross-sectional view of a three-way valve according to the present invention. Referring to FIG. 5, the three-way valve 130 controls the flow path for the intake or discharge of the sludge. When the piston ram 121 moves backward for the intake of the sludge, the pumping pipe 110 and the sludge are moved. A flow path connecting the inflow trumpet tube 140 to be introduced and the piston ram 121 moves forward to discharge the sludge, and a flow path connecting the pumping pipe 110 and the discharge pipe 150 through which the sludge is discharged. To form. The three-way valve 130 allows the pumping pipe 110 and the discharge pipe 150 to be connected in a state where the centers are coincident with each other on the same straight line, while the inlet trumpet pipe 140 to which sludge is supplied is connected to the vertical upper portion. When the sludge is discharged, the resistance is reduced, and when the sludge is sucked in, the sludge is added to the suction force of the pumping cylinder 120 to facilitate the suction of the sludge.

More specifically, the three-way valve 130 is composed of a valve housing 131, the rotating body 132 and the switching cylinder 133 (shown in Figure 2). The valve housing 131 has three ports P1, P2, and P3 connected to the pumping pipe 110, the discharge pipe 150, and the inlet trumpet tube 140, respectively, and the three ports P1, The two ports P1 and P2 connected to the pumping pipe 110 and the discharge pipe 150 among the P2 and P3 may coincide with the center of the pumping pipe 110 and the discharge pipe 150 on the same straight line. One port P2 is formed to have a vertical center line between the two ports (P1, P2) so that the three-way valve 130 is perpendicular to the inlet trumpet tube (140) It is formed to connect from the bottom. As such, the two ports P1 and P2 connecting the pumping pipe 110 and the discharge pipe 150 are located on the same straight line, thereby reducing the resistance of the pipe and the sludge when discharging the sludge, thereby helping to smoothly transport the sludge. In the case of sludge sucked from the inlet trumpet tube 140, the sludge's own weight is added to the suction force, so that the sludge having a high viscosity can be sucked more effectively.

The rotating body 132 is installed inside the valve housing 131 so that the three ports (P1, P2, P3) are located in the intersection portion of the pumping pipe 110 and the inlet trumpet tube 140 or pumping pipe 110 And rotate to form a passage through which the discharge tube 150 is connected. The rotating body 132 is configured to have a spherical outer surface protruded convexly so that the upper end is less affected by the load generated in the weight of the sludge during rotation. The upper end of the rotating body 132 referred to here means a portion located on the inlet trumpet tube 140 when the rotating body 132 is rotated so that a passage for connecting the pumping pipe 110 and the discharge pipe 150 is formed. do.

The switching cylinder 133 is installed outside the valve housing 131 to provide power for rotating the rotating body 132. On the other hand, although the internal configuration of the switching cylinder 133 is not shown, the rack gear is a rotating cylinder provided in the center portion, the pinion gear and the rack gear provided on the shaft extending from the rotating body 132 is engaged with the switching cylinder 133 It is configured to enable the rotation of the rotating body 132 by).

6 is a cross-sectional view showing a state in which the rotating body is rotated for the suction of sludge. Referring to FIG. 6, in the sludge feed apparatus configured as described above, the pumping cylinder 120 is piston in a state in which the rotating body 132 is rotated to form a flow path connecting the pumping pipe 110 and the inlet trumpet tube 140. When the ram 121 is moved backward, the sludge is sucked into the pumping pipe 110 by the suction force and the weight of the sludge generated by the rearward movement of the piston ram 121 to be filled. Since the rotating body 132 is rotated by the switching cylinder 133 to form a flow path for connecting the pumping pipe 110 and the discharge pipe 150, the piston ram 121 is moved forward so that the sludge discharge pipe It is discharged through the 150.

7 is a plan view of a sludge conveying apparatus according to another embodiment of the present invention, Figure 8 is a side view of the sludge conveying apparatus shown in FIG. In the case of the sludge conveying apparatus described above, the sludge is conveyed using one pumping pipe 110, a pumping cylinder 120, and a three-way valve 130, respectively, but two first and second pumping pipes ( The sludge may be continuously discharged using the 211 and 212, the first and second pumping cylinders 221 and 222, and the first and second three-way valves 231 and 232. 7 and 8, the first and second pumping pipes 211 and 212 are arranged side by side in a neighboring state, and the first and second pumping cylinders 221 and 222 are the first and second pumping pipes 211 and 212. Respectively installed at the suction and discharge of the sludge, and the first three-way valve 231 controls the flow path of the first pumping pipe 211, the discharge pipe 150, and the inlet trumpet tube 140. The second three-way valve 232 is installed to control the flow path of the second pumping pipe 212, the discharge pipe 150 and the inlet trumpet tube 140.

Meanwhile, the individual configurations of the first and second pumping pipes 211 and 212, the first and second pumping cylinders 221 and 222, and the first and second three-way valves 231 and 232 are described above with reference to FIGS. 2 to 5. Since 110 and the pumping cylinder 120 and the three-way valve 130 is the same, detailed description of the individual configuration is omitted.

Meanwhile, the inlet trumpet tube 140 is connected to the first and second three-way valves 231 and 232 by the Y-shaped tube 241 to supply sludge to both the first and second pumping tubes 211 and 212. 150 is connected to the first and second three-way valves 231 and 232 by another Y-shaped tube 242 to provide a flow path through which the sludge is discharged.

As described above, the sludge conveying apparatus having a dual operation structure having two pumping pipes 211 and 212, pumping cylinders 221 and 222, and a three-way valve 231 and 232 has a dual operation structure. The pumping pipe and the pumping cylinder are discharged to enable continuous discharge of the sludge. At this time, the first and second three-way valves 231 and 232 are connected to the pumping cylinder for suction operation. And a pumping tube connected to the pumping cylinder for discharging operation to form a flow passage connected to the discharge tube 150. The pumping tube is operated to form a flow passage connected to the discharge tube 150. The discharge is made so that the sludge is continuously transferred.

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

The present invention, as described above, by simplifying the configuration of the valve for controlling the intake and discharge of the sludge by using a three-way valve, it is possible to reduce the manufacturing cost of the device and the maintenance cost. Furthermore, when the sludge is discharged, the sludge is smoothly discharged by reducing the friction between the sludge and the tube, and when the sludge is inhaled, the sludge's own weight is added to the suction power of the pumping cylinder to facilitate the suction of the sludge having a high viscosity. It became possible.

Claims (4)

In the sludge conveying apparatus having a pumping tube 110 having a horizontally arranged, and a pumping cylinder 120 having a piston ram 121 for reciprocating movement inside the pumping tube 110, The pumping pipe 110 and the discharge pipe 150 is discharged sludge and the inlet trumpet tube 140 is supplied with the sludge, the pumping pipe 110 and the inlet trumpet tube during the suction operation of the pumping cylinder 120 ( And a three-way valve 130 forming a flow path to which the pump 140 is connected and forming a flow path to which the pumping pipe 110 and the discharge pipe 150 are connected during the discharge operation of the pumping cylinder 120. Sludge transfer device using a three-way valve. The method of claim 1, wherein the three-way valve 130, Two ports P1 and P2 are respectively connected to the pumping pipe 110 and the discharge pipe 150 so that the pumping pipe 110 and the discharge pipe 150 are connected in a state where the centers are coincident with each other on the same straight line. Another port (P3) is provided so that the inlet trumpet 140, which is supplied with sludge is connected to the vertical upper portion, is configured to reduce the resistance when the sludge is discharged and to add the sludge's own weight to the suction force when the sludge is inhaled. Sludge transfer device using a three-way valve. The method of claim 1, The piston ram 121, which is installed between the pumping pipe 110 and the pumping cylinder 120 and supplies coolant to the rear end of the piston ram 121, reciprocates in the pumping pipe 110, is subjected to frictional heat. Sludge conveying apparatus using a three-way valve, characterized in that it further comprises a cooling water tank (160) to prevent damage by. The method of claim 1, The pumping pipe is composed of first and second pumping pipes 211 and 212 arranged side by side in a neighboring state, The pumping cylinder is composed of first and second pumping cylinders (221, 222) installed in the first and second pumping pipe (211,212), respectively, to operate for suction and discharge of the sludge, The three-way valve includes a first three-way valve 231 for controlling the flow path of the first pumping pipe 211 and the discharge pipe 150 and the inlet trumpet tube 140, the second pumping pipe 212 and the discharge pipe ( 150) and a second three-way valve 232 for controlling the flow path of the inlet trumpet tube 140, the other pumping tube and the pumping cylinder during the discharge operation of any one of the pumping tube and the pumping cylinder is discharged to the sludge Sludge transfer device using a three-way valve to enable continuous discharge of water.

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