KR20100029003A - Water treatment sludge drain system without raw water inflow - Google Patents

Abstract

PURPOSE: A row water mixing protection sludge drain system is provided to reduce a row water loss or an energy loss during a discharge process by preventing a scattering and scum of discharged sludge, and simplify the process by removing a secondary treatment of the discharged sludge. CONSTITUTION: A row water mixing protection sludge drain system comprises the following: a settling reservoir storing row water; a hopper unit(200) formed by caving one side of the settling reservoir; and a submerged carriage transferring a sediment from the one side of the settling reservoir to the hopper unit. The hopper unit comprises: an opening(P) formed on one upper side in parallel with the bottom of the settling reservoir; a fixing cover(210) formed with ventilation holes on the other side; a sliding damper(220) sealing the opening while moving forward and backward from the lower side of the fixing cover; an operator to move the sliding damper; and an air inlet(240) connected to the outside of the settling reservoir to the upper side of the ventilation holes.

Description

Raw water mixing prevention sludge discharge system {WATER TREATMENT SLUDGE DRAIN SYSTEM WITHOUT RAW WATER INFLOW}

The present invention selectively shields the upper part of the hopper completely during sludge discharge, thereby preventing sludge scattering and scum diffusion, and preventing raw water inflow and discharge, thereby reducing energy and raw water loss required for discharge and collecting sludge efficiently in the hopper. The present invention relates to a raw water mixing prevention sludge discharge system that shortens the secondary treatment process of the discharged sludge to drastically reduce the cost of water purification or sewage treatment.

In general, water purification plants and sewage treatment plants are provided with sedimentation basins to settle sludge contained in the raw water flowing into the water purification and sewage treatment plants. The symbol water after sedimentation is supplied to filter paper in case of water purification plants, and in the case of sewage treatment plants, organic matter purification processes After rough, it is discharged into the river.

The sludge settled in the sedimentation basin is collected by the hopper formed on one side of the sedimentation basin by the reciprocating movement of the water truck with the scraper and then discharged through the discharge pipe.In the case of the water purification plant, it is the secondary sedimentation tank. Discharged.

On the other hand, the sludge collected in the hopper is deposited, but only the sludge around the pipe flowing into the discharge pipe is discharged, and the sludge located out of the inlet of the discharge pipe is continuously accumulated and solidified.

Therefore, the hopper is provided with a pressure water injector for high-pressure injection of water so as to prevent sludge deposition, thereby forcibly injuring the sludge.

However, when sludge is injured in the hopper, sludge and scum are scattered to the upper part of the sedimentation tank and a large amount of raw water is simultaneously discharged to discharge them. Therefore, the discharge pump operation time should be increased and the load on the secondary sedimentation tank or the secondary concentration tank should be increased. There is a problem that a large amount of raw water and power is wasted is increased.

Patent No. 0368170 is disclosed as an alternative to block sludge scattering in such a hopper.

The prior art is provided with a blocking plate which is interlocked and opened by a wire for moving the water cart on the hopper to prevent sludge scattering, the hopper is opened when the water cart approaches the hopper.

By the way, such prior art has the effect of preventing sludge scattering, but because the raw water of the upper part of the sedimentation basin is discharged into the hopper by the negative pressure generated during the sludge discharge, it takes a long discharge time and there is still a problem of waste of raw water and energy. .

In addition, there is a problem that a separate facility such as a secondary discharge tank or a concentration tank is still accompanied to deal with this by the large amount of raw water included in the sludge discharge.

In order to solve the above problems, when the sludge is discharged, the upper part of the hopper is selectively shielded completely to prevent sludge scattering and scum spreading, and to prevent the inflow of raw water and reduce the energy and raw water loss required for the discharge, By discharging only the collected sludge, it is not necessary to implement the sludge discharge system for preventing the mixing of raw water so that the cost of water purification or sewage treatment can be drastically reduced.

The present invention has been made in view of the above point, an object of the present invention is to completely prevent the sludge from scattering and scum diffusion by preventing the sludge from being discharged by completely shielding the upper part of the hopper during discharge of the sludge. It is to provide a raw water mixing prevention sludge discharge system that saves energy and raw water loss, and efficiently discharges sludge collected in the hopper, thereby shortening the secondary treatment process of discharged sludge so that the cost of water purification or sewage treatment can be drastically reduced. .

In order to achieve the above object, the raw water mixing prevention discharge system according to the present invention includes a sedimentation basin into which raw water is stored and stored, a hopper portion recessed downward on one side of the sedimentation basin, and a precipitate at the bottom of the sedimentation basin from one side of the sedimentation basin. In the sludge discharge system comprising an underwater bogie to move up to, The hopper portion, the fixing cover is formed with an opening on one side of the upper side parallel to the bottom surface of the sedimentation basin and a vent formed on the other side; A sliding damper which moves forward and backward from a lower portion of the fixed cover to open or seal the opening; Opening and closing operation means for moving the sliding damper; It includes an air inlet pipe communicating with the outside of the settling basin above the fixing cover vent hole.

The sliding damper has one or more moving rollers connected to each other in the lower and lower portions of the sliding damper by a link, and below the moving roller, guide rails are horizontally provided to guide the moving rollers to both side walls of the hopper. It is fixed, the opening and closing operation means is composed of a cylinder coupled to the piston rod of the rotating shaft of the moving roller.

The link is the upper end is hinged to the lower portion of the sliding damper, the lower end is hinged to the rotating shaft of the moving roller, the upper end of the link is a fan-shaped variable support portion protrudes forward to the cylinder in a state in which the sliding damper touches the side wall of the hopper portion When the piston rod continues to advance, the sliding damper is raised to seal the opening.

Packing is installed in the periphery of the fixing cover and the periphery of the opening for sealing sealing.

The fixing cover is further provided with a scraper operated by a second cylinder or a wire to remove sludge deposited on the top.

The subscraper is formed with wheels before and after the bottom of the bogie, a front wheel link and a rear wheel link having a scraper on the front and rear wheels, the front wheel link is a first hinge point coupled to the bogie on a straight line And a second hinge point and a third hinge point coupled to the wheel shaft and the wheel axis are sequentially formed. An arm is formed in an orthogonal direction on the second hinge point, and a scraper is installed at the tip of the arm. Is composed of a first link member and a second link member, the first link member is in the shape of a fin, one end is hinged to the trolley and the angle is hinged to the wheel shaft, the second link member is in the shape of A sixth hinge point formed at one end, a seventh hinge point formed between the sixth hinge point and the angle portion and hinged to the wheel shaft, and a scraper is installed at the other end, and the front bar The second link member of the link and the third hinge point for the rear wheel of the link of claim 6 is provided with a connecting link to a straight line connecting the hinge point.

The hopper portion further includes a scraping means for floating the sludge deposited while reciprocating back and forth in the lower surface thereof and a pumping means for pumping the suspended sludge to the outside.

The scrap means includes a cylindrical body portion having a discharge portion connected to the pumping means by a hose at the upper portion and a plurality of suction holes for suctioning the sludge in the lower portion; A pair of brackets provided on a lower surface of the body in a longitudinal direction and sliding in close contact with a bottom surface of the hopper; It is provided between the bracket and the body portion comprises a plurality of ribs for cutting the sludge suspended by the bracket.

The outer circumferential surface of both ends of the body portion that is connected to the bracket of the scrap means is provided with a rotary ring is characterized in that the body portion is rotatable relative to the rotary ring and the bracket.

Raw water mixing prevention sludge discharge system according to the present invention

First, when the sludge is discharged, by selectively shielding the upper part of the hopper completely, it blocks the sludge scattering and scum diffusion and prevents the inflow of raw water, thereby reducing the energy and raw water loss required for the discharge. It also has the effect of preventing environmental pollution.

Second, by efficiently discharging the sludge collected in the hopper, there is no need to reprocess the discharged sludge secondaryly, thereby greatly reducing the cost of water purification or sewage treatment.

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

1 is a plan view and enlarged part of the raw water mixing prevention discharge system according to the present invention, Figure 2 is a partially enlarged enlarged view of the AA line of Figure 1, Figure 3 is a variable state diagram and enlarged part of Figure 2 As the present invention, the sedimentation basin 100 into which raw water is stored and stored, the hopper portion 200 recessed downward on one side of the sedimentation basin 100, and the sediment of the bottom of the sedimentation basin 100 is one side of the sedimentation basin 100. In the sludge discharge system comprising a water cart 300 for moving from the hopper portion 200 to the hopper portion 200, the hopper portion 200, the opening (P) at the upper side in parallel with the bottom surface of the sedimentation basin 100 It is formed and the other side and the fixing cover 210, the vent hole 211 is formed; A sliding damper 220 which moves forward and backward from the bottom of the fixing cover 210 to open or seal the opening P; Opening and closing operation means for moving the sliding damper (220); It includes an air inlet pipe 240 communicated to the outside of the settling basin 100 to the upper side of the fixing cover 210, the vent hole 211.

As shown in FIG. 2 and FIG. 3, the sliding damper 220 has one or more moving rollers 221 connected to each other by a link 222 in the lower and extended direction of the moving direction, respectively, and the moving rollers 221. The guide rail 223 is provided horizontally in order to guide the moving roller 221 below the fixed to both side walls of the hopper 200, the opening and closing operation means is a rotating shaft 221a of the moving roller 221 It is composed of a cylinder (C1) coupled to the piston rod (C2).

The cylinder (C1) is preferably provided with a flexible sealing cover (C3) is called a "Java tube" so that the watertight can be maintained during the operation of the piston rod (C2). In addition, the opening and closing operation means may be configured using a wire and a winch.

The link 222 has an upper end hinged to the lower portion of the sliding damper 220, the lower end is hinged to the rotating shaft 221a of the moving roller 221, the upper end of the link 222 is a fan-shaped variable support portion forward 222a protrudes and the sliding damper 220 is raised when the sliding damper 220 continues to enter the cylinder piston rod C2 while the sliding damper 220 contacts the side wall 200a of the hopper part 200. ) Is sealed. In addition, the packing (G) is preferably installed below the circumference of the fixing cover 210 and the circumference of the opening (P) to seal sealing.

As shown in FIG. 3, the fixing cover 210 is further provided with a scraper 250 which is operated by a second cylinder C3 or a wire to remove sludge deposited thereon. In addition, the second cylinder (C3) is also preferably provided with a flexible sealing cover, also referred to as "Java tube" in the connection portion with the piston rod.

The scraper 250 is provided with wheels 252 before and after the lower portion of the cart 251, and a front wheel link 254 and a rear wheel link 255 having a scraper 253 on the front and rear wheels are provided. The front wheel link 254 has a first hinge point 254a coupled to the trolley 251 on a straight line, and a second hinge point 254b and third hinge point 254c coupled to the wheel shaft 252a. ) Is sequentially formed, an arm 254d is formed in an orthogonal direction on the second hinge point 254b, and a scraper 253 is installed at the tip of the arm 254d, and the rear wheel link ( 255 is composed of a first link member 256 and a second link member 257, the first link member 256 is in the shape of a 되어 one end is hinged with the trolley 251 and the angle portion (256a) Is hinged to the wheel shaft 252a, the second link member 257 is shaped like a sixth hinge point (257a), the sixth hinge point (257a) and the angle portion (257b) formed at one end A seventh hinge point 257c is formed therebetween and is hinged to the wheel shaft 252a, and a scraper 253 is installed at the other end, and the third hinge point 254c of the front wheel link 254 is formed. A connecting link 258 is provided to linearly connect the second link member sixth hinge point 257a of the rear wheel link 255.

The present invention having the configuration as described above is installed on the fixing cover 210 provided with an opening (P) on one side to block the sludge scattering on the hopper portion 200 of the sedimentation basin 100 of the sludge collector and this fixed cover Sliding damper 220 is provided on the lower portion of the 210, characterized in that the sealing is shielded by the watertight maintenance of the settling basin 100 and the hopper 200.

At all times, the opening P of the fixing cover 210 is opened, and the water cart 300 which scrapes the sludge accumulated on the bottom of the sedimentation basin 100 and falls to the hopper 200 performs the sludge collection operation. .

In addition, when discharging the sludge collected in the hopper 200, the sliding damper 220 is moved by the operation of the cylinder C1 to block the opening P of the fixing cover 210.

At this time, even after the sliding damper 220 contacts the side wall 200a of the hopper 200, if the outgoing pressure of the piston rod C2 is continuously applied to the moving roller 221, the link 222 is raised and the sliding damper is raised. The 220 is raised to be in close contact with the packing G below the opening P, and the sealing order of the opening P is performed.

In addition, since the sealing cover treatment is performed around the fixing cover 210 by the packing G, the upper portion of the hopper 200a is completely shielded, and then the discharge pump M is driven to discharge the sludge. As the sludge is discharged, the negative pressure generated in the hopper 200 is filled with air introduced through the air inlet pipe 240.

That is, the fixing cover 210 and the sliding damper 220 completely seals and shields the hopper 200 through the packing G, and air is introduced from the outside through the air inlet pipe 240 to be generated as the sludge is discharged. The negative pressure is filled with external air instead of the raw water of the sedimentation basin 100 so that the raw water is not diluted in the sedimentation sludge and the discharged sludge is sent to the concentrated sludge collector without the sedimentation of the secondary discharge sludge and is treated or dehydrated.

As such, the sludge discharge is concentrated without the inflow of raw water, so the discharge is processed quickly and the operation of the discharge pump is reduced, which saves energy, significantly reduces the loss of raw water, and does not require secondary treatment such as secondary precipitation of the discharge sludge. Significantly reduce the size and cost of water treatment facilities.

On the other hand, the scraper 250 is for sludge treatment deposited on the fixing cover 210, the front wheel link 254, the rear wheel link 255 and the connecting link 258 on the trolley 251. When the trolley 251 advances through, the scraper 253 contacts the upper surface of the fixing cover 210 to scrape the sludge, and when the rearward, the scraper 253 rises.

Figure 4 is a side view showing an extract of the scrap means of the present invention, Figure 5 is a cross-sectional view taken along line BB of Figure 4, Figure 6 is a perspective view showing an extract of the scrap means of the present invention, Figure 7 is a scrap of the present invention As a bottom perspective view showing an extract of the means, the hopper 200 has a scraping means 260 for floating the sludge deposited while reciprocating back and forth on its lower surface and pumping means for pumping the suspended sludge to the outside ( 270) is further included.

As shown in FIGS. 4 to 7, the scrap means 260 has a discharge portion 261a connected to the pumping means 270 by a hose H at the top thereof and a plurality of suction portions for sucking sludge at the bottom thereof. Cylindrical body portion 261 is formed with a suction hole (261b) of; A pair of brackets 262 provided on the bottom surface of the body portion 261 in the longitudinal direction and sliding in close contact with the bottom surface of the hopper portion 200; A plurality of ribs 263 are provided between the bracket 262 and the body portion 261 to cut the sludge suspended by the bracket 262.

The bottom surface of the hopper 200 is provided with a plurality of rails (R) on both sides at right angles to the longitudinal direction of the bracket 262, the bracket (262) is seated on the rail (R) By pulling the wire (W) connected to the clasp 265 integrally formed in the bracket 262, the scrap means 260 is reciprocating in the front and rear direction.

When the scrap means 260 reciprocates in the front and rear direction, the bracket 262 scraps the bottom surface of the hopper portion 200, and the sludge deposited on the bottom surface of the hopper portion 200 is bracket ( Sludge whose cross-sectional area is reduced while being cut by the plurality of ribs 263 provided on the upper surface of the 262 is easily sucked into the plurality of suction holes 261b formed on the lower surface of the body portion 261, and the discharge pump ( The sludge introduced into the suction hole 261b due to the driving of M) is discharged to the outside through the hose H connected to the discharge part 261a via the discharge part 261a formed at the upper portion of the body part 261. (See FIG. 2).

As shown in Figure 5, the outer peripheral surface of both ends of the body portion 261 connected to the bracket 262 of the scrap means 260 is provided with a rotary ring 264, the body portion 261 is the rotary ring ( 264 and the bracket 262 can be rotated.

When the scrap means 260 reciprocates in the front and rear directions along the bottom surface of the hopper portion 200 to prevent the hose (H) integrally connected to the discharge portion (261a) of the body portion 261 is twisted. In order to allow the body portion 261 to be rotatable at an angle with the longitudinal direction of the body portion 261 as the rotation axis, rotary rings 264 are provided on both outer surfaces of the body portion 261.

The circumferential wall of the rotary ring 264 connected to both ends of the body portion 261 is preferably attached at a right angle upward to a frame (not shown) connecting each rotary ring 264 to the hopper portion 200. The sludge deposited on the sidewalls and the lower portion of the guide rail 223 is scraped.

As described above, the raw water mixing prevention sludge discharge system according to the present invention selectively blocks the upper part of the hopper when the sludge is discharged, thereby preventing the sludge from scattering and spreading the scum, and also preventing the discharge of raw water inlet to discharge energy. In addition, it reduces raw water loss and efficiently discharges sludge collected in the hopper, thereby eliminating secondary treatment of discharged sludge, thereby drastically reducing the cost of water purification or sewage treatment.

1 is a plan view and enlarged view showing the raw water mixing prevention sludge discharge system according to the present invention,

FIG. 2 is a partially enlarged enlarged view of a cross section along the line A-A of FIG. 1;

3 is a variable state diagram and enlarged parts of FIG.

Figure 4 is a side view showing an extract of the scrap means of the present invention,

5 is a cross-sectional view taken along the line B-B of FIG.

Figure 6 is a perspective view showing an extract of the scrap means of the present invention,

Figure 7 is a bottom perspective view showing an extract of the scrap means of the present invention.

※ Explanation of codes for main parts of drawing

100: sedimentation basin 200: hopper portion 200a: side wall

210: fixing cover 211: ventilation hole 220: sliding damper

221: movement roller 221a: rotation axis 222: link

222a: variable support 223: guide rail 240: air inlet pipe

250: skyscraper 251: bogie 252: wheels

253: scraper 254: front wheel link 254a: first hinge point

254b: Second hinge point 254c: Third hinge point 254d: Arm

255: rear wheel link 256: first link member 256a: angle portion

257: second link member 257a: sixth hinge point 257b: angle part

257c: 7th hinge point 258: connecting link 260: scrap means

261 body portion 261a discharge portion 261b suction hole

262: bracket 263: rib 264: rotation ring

265: clasp 300: water cart P: opening

G: Packing H: Hose C1: Cylinder

C2: Piston Rod C3: Sealing Cover C4: Second Cylinder

M: Discharge Pump R: Rail

Claims (9)

The sedimentation basin 100 into which raw water is stored and stored, the hopper portion 200 recessed downward on one side of the sedimentation basin 100, and the precipitate at the bottom of the sedimentation basin 100 from one side of the sedimentation basin 100. In the sludge discharge system comprising an underwater truck 300 to move to), The hopper unit 200, A fixed cover 210 having an opening P formed at an upper side thereof in parallel with a bottom surface of the sedimentation basin 100, and a vent hole 211 formed at the other side thereof; A sliding damper 220 which moves forward and backward from the bottom of the fixing cover 210 to open or seal the opening P; Opening and closing operation means for moving the sliding damper (220); Raw water mixing prevention system, characterized in that the air inlet pipe 240 is communicated to the outside of the fixing cover 210, the vent hole 211 is communicated to the outside of the settling basin (100). The method according to claim 1, The sliding damper 220 has one or more moving rollers 221 connected to each other by the link 222 at the lower and extended direction thereof in the moving direction. The guide rail 223 is provided horizontally below the moving roller 221 to guide the moving roller 221 and is fixed to both side walls of the hopper 200. The opening and closing operation means is a raw water mixing prevention sludge discharge system, characterized in that consisting of a cylinder (C1) coupled to the piston rod (C2) to the rotating shaft (221a) of the moving roller (221). The method according to claim 2, The link 222 has an upper end hinged to the lower portion of the sliding damper 220, the lower end is hinged to the rotating shaft 221a of the moving roller 221, the upper end of the link 222 is a fan-shaped variable support portion forward 222a protrudes and the sliding damper 220 is raised when the sliding damper 220 continues to enter the cylinder piston rod C2 while the sliding damper 220 contacts the side wall 200a of the hopper part 200. Raw material mixing prevention sludge discharge system, characterized in that coupled to the sealing. The method according to claim 1, Raw water mixing prevention sludge discharge system, characterized in that the packing (G) is installed in the periphery of the fixing cover 210 and the periphery of the opening (P) to seal sealing. The method according to claim 1, The fixing cover 210 is a raw material mixing prevention sludge discharge system, characterized in that further installed a scraper 250 operated by a second cylinder (C3) or a wire to remove the sludge deposited on the top. The method according to claim 5, The scraper 250 is provided with wheels 252 before and after the lower portion of the cart 251, and a front wheel link 254 and a rear wheel link 255 having a scraper 253 on the front and rear wheels are provided. , The front wheel link 254 has a first hinge point 254a coupled to the trolley 251 on a straight line and a second hinge point 254b and third hinge point 254c coupled to the wheel shaft 252a. These are sequentially formed, the arm 254d is formed in the orthogonal direction on the second hinge point 254b and the scraper 253 is provided at the tip of the arm 254d, The rear wheel link 255 is composed of a first link member 256 and a second link member 257, The first link member 256 is in the shape of ┗, one end is hinged to the trolley 251 and the angle portion 256a is hinged to the wheel shaft 252a, The second link member 257 is shaped like a wedge and is formed between the sixth hinge point 257a, the sixth hinge point 257a and the angle portion 257b, which is formed at one end, and is hinged to the wheel shaft 252a. The seventh hinge point 257c to be coupled is formed and the scraper 253 is installed at the other end, It is provided that the connection link 258 for linearly connecting between the third hinge point 254c of the front wheel link 254 and the second link member sixth hinge point 257a of the rear wheel link 255. Raw water mixing prevention sludge discharge system. The method according to claim 1, The hopper 200 further includes a scraping means 260 for floating the sludge deposited while reciprocating in the front and rear direction on its lower surface and a pumping means 270 for pumping the suspended sludge to the outside. Raw water mixing prevention discharge system. The method according to claim 7, The scrap means 260 is A cylindrical body part 261 having a discharge part 261 a connected to the pumping means 270 by a hose H at an upper part thereof, and a plurality of suction holes 261 b formed at a lower part thereof for sucking sludge; A pair of brackets 262 provided on the bottom surface of the body portion 261 in the longitudinal direction and sliding in close contact with the bottom surface of the hopper portion 200; Raw material mixing prevention discharge system comprising a plurality of ribs (263) provided between the bracket (262) and the body portion (261) for cutting the sludge suspended by the bracket (262). The method according to claim 9, The outer circumferential surface of both ends of the body portion 261 connected to the bracket 262 of the scrap means 260 is provided with a rotary ring 264, the body portion 261 is the rotary ring 264 and the bracket 262 Raw water mixing site discharge system, characterized in that rotatable against.

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