KR102292010B1 - Mobile scum removal apparatus - Google Patents

Abstract

The present invention relates to a mobile scum removal apparatus which comprises: a running car installed to run a top side of the sedimentation basin along a rail of the sedimentation basin; a fixed pipe installed at the sedimentation basin in a width direction and formed therein with an inlet to introduce scum; a height control part to control a height of the fixed pipe from the sedimentation basin; a scroll type drum rotatably installed at an outer peripheral surface of the fixed pipe, a drum driving part installed at the sedimentation basin to rotate the scroll type drum; a feed screw installed at an inner side of the fixed pipe to feed scum introduced through the inlet outward; and a screw driving part to rotate the feed screw. The present invention may maintain an optimal height in collection efficiency increase of scums even if a water level of a scroll type drum is changed by easily controlling an immersion depth of a scroll type drum above a running cart according to change in a water level of a sedimentation basin, and collect most scum at a surface of the water to exhaust to an outside for a start time of a scroll type drum by providing a scum accelerator at a front end of the scroll type drum and simultaneously starting the scum accelerator together with the scroll type drum to push a scum at the surface of the water to a drum side.

Description

Mobile scum removal apparatus

The present invention relates to a mobile scum removal device, and more particularly, to increase the scum collection efficiency by adjusting the height of the scroll-type drum according to water level fluctuations, and to prevent scum from remaining on the water surface during the start-up time of the scroll-type drum as much as possible. It relates to a mobile scum removal device to be discharged to the outside.

In general, the scum floating on the top of the rectangular settling tank contaminates the water surface of the settling tank, and the SS increases and becomes a factor of increasing the turbidity of the treated water, and must be completely collected and discharged within an appropriate time.

As a related prior art, the "sludge collector equipped with a screw shaft type scum discharge means" of Korean Utility Model Registration No. 20-0387151 has been proposed, which has a settling tank having a predetermined size, and is installed on both sides of the inside of the settling tank. A sludge removal blade connected to the installed chain and rotating to remove the sludge deposited on the bottom of the settling tank, a scum skimmer rotating at the top of the settling tank to remove the scum floating on the upper side, and the scum supplied from the scum skimmer In the sludge collector of a sewage treatment system provided with a discharge path for discharging to the outside, a screw shaft rotatably installed inside the discharge path, a driving unit installed at an upper side of the settling tank to rotate the screw shaft, the driving unit and the screw It includes a scum discharge means consisting of a power transmission unit for connecting the shaft.

Such a prior art has a limit in increasing the efficiency to simply discharge the scum at a certain location, so it is necessary to improve it.

In response to this need, a running cart-type scum removal device has been developed, which puts a running cart on a running rail, mounts a drum on the running cart, rotates the drum, and flows into the drum inside the drum It is discharged to the outside by the rotation of the screw conveyor provided in the scum, and is discharged to the original flow control tank along the scum discharge channel.

Such a conventional traveling truck-type scum removal device has a problem in that the water level fluctuates according to the amount of sewage flowing in from the rectangular settling basin, and the scum collecting ability of the drum varies according to the water level change. That is, the drum submersion depth at normal water level is about 50mm from the water surface, and the scum floating on the water surface is pushed in the direction of the skimmer when the flight of the rectangular sludge collector is moved, and the scum collected around the entrance of the skimmer is sucked into the rotating drum. to the outside by driving the built-in screw conveyor. At this time, if the height of the water surface of the sedimentation basin is lowered due to a decrease in the amount of sewage inflow, and the immersion depth of the drum is reduced to about 30~40mm, the scum collection capacity is significantly reduced and scum is continuously accumulated on the surface of the sedimentation basin, and the water surface of the sedimentation basin becomes scum. If it is left in a contaminated state and the deposition state continues, the scum surface becomes hard and difficult to treat the scum.

Also, in the rectangular sedimentation tank, the flight of the sludge collector pushes the sludge into the hopper, rises to the top of the water surface and travels in the direction of the skimmer. do. The conventional traveling cart-type scum removal device rotates the drum for a time set at a time interval set by a timer every hour, so that the collected scum is discharged and removed by driving a screw conveyor mounted inside the drum. During the time the drum rotates for collection, there is no flow rate that pushes the scum toward the inlet side of the drum, so only a certain portion of the scum is recovered and the remaining amount of scum is not completely collected. This is because, due to the characteristics of the sedimentation basin, the traveling speed is low for the effective collection and discharge of the sedimented sludge, and the flight is driven at a speed enough to not confirm the movement of the flight. Accordingly, there is a problem in that such a flight alone cannot solve the problem.

In order to solve the problems of the prior art as described above, the present invention allows the immersion depth of the scroll-type drum on the traveling cart to be easily adjusted according to the change in the water level of the settling pond, so that the scroll-type drum is scum despite the change in water level. To maintain the optimum height for increasing the collection efficiency of The purpose is to ensure that the scum is recovered as much as possible on the water surface during time and discharged to the outside, thereby preventing the scum from remaining without being recovered.

Other objects of the present invention will be easily understood through the description of the following embodiments.

In order to achieve the object as described above, according to an aspect of the present invention, a running cart installed to run on the upper side of the settling tank along the rail provided in the settling tank; a fixed pipe installed in the width direction on the traveling cart and having an inlet for the inflow of scum to the inside; a height adjustment unit for adjusting the height of the fixed pipe from the traveling cart; a scroll-type drum that is rotatably installed on the outer circumferential surface of the fixed pipe, introduces scum to the inside through an opening submerged in the water surface during rotation, and supplies the scum to the inside of the fixed pipe through the inlet; a drum driving unit installed on the traveling cart to rotate the scroll-type drum; a transfer screw installed inside the fixed pipe and transferring the scum introduced through the inlet when rotating to the outside; and a screw driving unit installed on the traveling cart to rotate the transfer screw.

The height adjustment unit, the fixed body fixed to the fixed pipe; a sliding member provided on the fixed body; a plurality of sliding shafts provided perpendicular to the traveling cart so as to be slidably coupled to the sliding member; a spring installed on each of the sliding shafts to elastically support the sliding member upward; and a tightening nut that is screwed to the upper end of each of the sliding shafts to adjust the height of the fixing pipe together with the sliding member according to the degree of tightening and loosening.

In the scroll-type drum, openings are formed along the longitudinal direction on both sides that are displaced to protrude by the semicircle having a semicircular cross-section facing each other so that the centers thereof are offset, and extending outward along the outer circumferential surface from each of the openings to introduce the scum An inflow guide for guiding the may be formed.

A scum accelerator further comprising a scum accelerator for providing scum of water to the scroll-type drum, wherein the scum accelerator includes a rotating shaft rotatably installed by a shaft support extending from the traveling cart so as to be parallel to the front end of the scroll-type drum; a blade fixed to the rotating shaft to move the scum to the scroll-type drum shaft when rotating; and a scum acceleration driving unit installed on the traveling cart to rotate the rotating shaft.

The scum accelerator may be provided such that the blade is fixed by a fixing bracket fixed to the rotation shaft by welding, and the blade is positioned at a height greater than or equal to the rotation center when stopped.

According to the mobile scum removal device according to the present invention, the immersion depth of the scroll-type drum on the traveling cart can be easily adjusted according to the change in the water level of the settling basin, so that the scroll-type drum can increase the collection efficiency of scum despite the change in the water level. It is possible to maintain an optimal height, and by providing a scum accelerator at the front end of the scroll-type drum to start simultaneously with the scroll-type drum, the scum on the water surface is pushed toward the scroll-type drum and the surface of the water surface during the start-up time of the scroll-type drum The scum can be recovered as much as possible and discharged to the outside, which has the effect of preventing the scum from remaining without being recovered.

1 is a front view showing a mobile scum removal device according to an embodiment of the present invention.
Figure 2 is a side view showing a mobile scum removal device according to an embodiment of the present invention.
Figure 3 is a side view showing a height variable portion of the movable scum removal device according to an embodiment of the present invention.
4 is a front view showing a movable scum removal apparatus according to an embodiment of the present invention, and shows a state in which the scum accelerator is stopped.
5 is a side view showing a movable scum removal apparatus according to an embodiment of the present invention, and shows a state in which the scum accelerator is stopped.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to a specific embodiment, it should be understood as including all changes, equivalents or substitutes included in the spirit and scope of the present invention, and may be modified in various other forms. and the scope of the present invention is not limited to the following examples.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings, and the same reference numerals are assigned to the same or corresponding components regardless of reference numerals, and redundant description thereof will be omitted.

Figure 1 is a front view showing a movable scum removal device according to an embodiment of the present invention, Figure 2 is a side view showing a movable scum removal device according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention It is a side view showing the height variable part of the movable scum removal device according to the example.

1 to 3 , the movable scum removal apparatus 100 according to an embodiment of the present invention includes a traveling cart 110 , a fixed pipe 120 , a height adjustment unit 130 , and a scroll-type drum 140 . , it may include a drum driving unit 150 , a transfer screw 160 , and a screw driving unit 170 .

The running cart 110 is installed to run on the upper side of the settling tank 1 along the rails 2 provided on both sides of the settling tank 1, respectively. The driving bogie 110 is provided with a plurality of wheels 111 installed on the rail 2 for driving. In addition, the traveling bogie 110 can be driven manually, and is not limited thereto, and configured to travel by winding a wire by a winch, or to travel by a rotational force such as a motor provided to the wheel 111 . Also, in addition, it may be configured to be driven by manpower or magnetic force by various methods.

The fixed pipe 120 is installed in the width direction on the traveling bogie 110, and an inlet 121 for introducing the scum to the inside is formed. The inlet 121 may be formed in a plurality along the longitudinal direction of the fixed pipe 120, but is not limited thereto, and a plurality of inlets 121 along the circumference of the fixed pipe 120 within a range that does not impair the strength of the fixed pipe 120 may be formed as In addition, the fixed pipe 120 may have a discharge port 122 formed at one end of the side so as to supply the scum to the scum discharge box 190 located below.

The height adjustment unit 130 adjusts the height of the fixed pipe 120 from the traveling cart 110. For this purpose, a cylinder or the like may be used, or various other actuators may be used. For example, the elastic force as in this embodiment It can be used to allow height adjustment. The height adjustment unit 130 may, for example, allow the immersion depth d at which the scroll-type drum 140 is submerged in the water surface to be about 50 mm.

The height adjustment unit 130 may be respectively installed at both ends of the fixed pipe 120 when using an elastic force, each of which is, for example, a fixed body 131 fixed to the fixed pipe 120, and a fixed body 131 . The sliding member 132 provided on the , a plurality of sliding shafts 133 provided perpendicular to the traveling cart 110 to be slidably coupled to the sliding member 132 , and the sliding member 132 are slid to elastically support the sliding member 132 upward. The spring 134 installed on each shaft 133 and the sliding shaft 133 are screwed to the upper end of each, and the height of the fixing pipe 120 is adjusted together with the sliding member 132 according to the degree of tightening and loosening. A tightening nut 135 may be included.

The fixed body 131 secures both ends of the fixing member 131a with a fastening member 131b in a state in which the upper portion of the fixing pipe 120 seated on the upper end is wrapped with the fixing member 131a, so that between the fixing members 131a The fixing pipe 120 is fixed. Here, the fastening member 131b may be formed of, for example, a bolt and a nut. The sliding member 132 has a flange 131c provided at the lower end of the fixed main body 131 is fixed to the fixed main body 131 by the fastening member 132a so as to form an integral body with the fixed main body 131 . Here, the fastening member 132a may be formed of a bolt and a nut. The sliding shaft 133 penetrates upwardly through the flange 113 of the traveling bogie 110 so that the head is caught, and the spring 134 is inserted into the side protruding from the flange 113 of the traveling bogie 110 . The sliding member 132 is fitted to the sliding shaft 133 so as to be positioned on the upper end of the spring 134 . The tightening nut 135 is screwed to the screw coupling portion 133a provided on the upper outer circumferential surface of the sliding shaft 133 .

The scroll-type drum 140 is rotatably installed on the outer circumferential surface of the fixed pipe 120 , and introduces scum to the inside through an opening 142 that is submerged in the water surface during rotation through the inlet 121 of the fixed pipe 120 . It is to be supplied to the inside of the fixed pipe (120). The scroll-type drum 140 may be installed so that both ends rotate smoothly by a bearing (not shown) interposed between the fixed pipe 120 and the fixed pipe 120 .

In the scroll-type drum 140, for example, as in this embodiment, the semicircular body 141 having a semicircular cross section faces each other so that the centers thereof are displaced, so that the openings 142 are formed along the longitudinal direction on both sides that are displaced to protrude. There, an inflow guide 143 extending outward along the outer circumferential surface from each of the openings 142 to guide the inflow of the scum may be formed.

The drum driving unit 150 is installed on the traveling cart 110 to rotate the scroll-type drum 140 . The drum driving unit 150 may be installed on the traveling cart 110 so as to be located on one side of the fixed pipe 120 , and transmits the rotational force of the drum driving motor 151 to the scroll-type drum through the sprockets 153 and 154 and the chain 155 . It can be passed to (140). To this end, the driving sprocket 153 installed on the rotation shaft 152a of the reducer 152 through the speed reducer 152 and the driven sprocket 153 installed on the outer peripheral surface of the scroll-type drum 140 by applying the rotational force of the drum driving motor 151 ( 154 may be connected with a chain 155 to provide the scroll-type drum 140 .

The transfer screw 160 is installed inside the fixed pipe 120 and transfers the scum introduced through the inlet 121 during rotation to the outside. The transfer screw 160 includes a screw shaft 161 that is rotatably installed on the inside of the fixed pipe 120 through a bearing, and a screw blade 162 that is provided in the longitudinal direction along the outer peripheral surface of the screw shaft 161. may include

The screw driving unit 170 is installed on the traveling bogie 110 to rotate the transfer screw 160 . The screw driving unit 170 may be installed on the traveling cart 110 so as to be located on the other side of the fixed pipe 120 , and is screwed to the screw shaft 161 of the transfer screw 160 protruding from the fixed pipe 120 . The rotational force of the driving motor 171 may be transmitted through the sprocket and the chain. To this end, a driving sprocket (not shown) installed on the rotation shaft 172a of the speed reducer 172 through the speed reducer 172 and the screw shaft 161 protruding from the fixed pipe 120 by applying the rotational force of the screw driving motor 171 to the drive sprocket (not shown) ) by connecting the driven sprocket 173 installed at the end of the chain (not shown) to the transfer screw 160 .

The movable scum removal apparatus 100 according to an embodiment of the present invention may further include a scum accelerator 180 for providing the scum of the water surface to the scroll-type drum 140 side.

The scum accelerator 180 is fixed to the rotating shaft 181 and the rotating shaft 181 rotatably installed by the shaft support 113 extending from the traveling bogie 110 so as to be parallel to the front end of the scroll-type drum 140 . It may include a blade 182 for moving the scum toward the scroll-type drum 140 when rotating, and a scum acceleration driving unit 183 installed on the traveling cart 182 to rotate the rotating shaft 181 . Here, the scum acceleration driving unit 183 transmits the rotational force of the scum acceleration motor 183a through the reducer 183b, and a driving sprocket (not shown) and a rotating shaft 181 installed on the shaft 183c of the reducer 183b. The driven sprocket 183d installed in the can be provided to the rotation shaft 181 by connecting the chain (not shown).

The scum accelerator 180 may be fixed by a fixing bracket 181a in which the blade 182 is fixed to the rotation shaft 181 by welding, and as shown in FIGS. 4 and 5, the blade 181 rotates when stopped. It may be provided to be located at a height higher than the center, and thus, when the scum accelerator 180 is stopped, it is possible to prevent the scum of the water surface from being blocked by the blade 181 and stagnation.

In order for the blade 181 to be positioned at a height above the rotational center, the blade 181 may be composed of one or two. It is arranged to face upward, and when it consists of two, the scum accelerator 180 may be configured to be horizontally arranged when it is stopped.

The movable scum removal device 100 according to the present invention can control the operation of the drum driving unit 150 and the screw driving unit 170 by counting the time with a timer so that the control unit operates for the time set by the hourly time setting unit, The present invention is not limited thereto, and may be controlled to operate according to a signal of the operator's manipulation unit, or may be configured to operate by various other methods.

According to the mobile scum removal apparatus according to the present invention, the immersion depth of the scroll-type drum on the traveling cart can be easily adjusted according to the change in the water level of the settling pond, so that the scroll-type drum collects scum despite the change in water level It can be maintained at an optimal height for augmentation.

In addition, according to the present invention, by providing a scum accelerator at the front end of the scroll-type drum to start simultaneously with the scroll-type drum, the scum on the water surface is pushed toward the scroll-type drum to maximize the scum on the water surface during the scroll-type drum start-up time. It can be recovered and discharged to the outside, thereby preventing the scum from remaining without being recovered.

As described above, the present invention has been described with reference to the accompanying drawings, but it goes without saying that various modifications and variations may be made within the scope without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims as well as the claims and equivalents.

1: clarifier 2: rail
110: running bogie 111: wheel
112: shaft support 113: flange
120: fixed pipe 121: inlet
122: outlet 130: height adjustment unit
131: fixed body 131a: fixed member
131b: fastening member 131c: flange
132: sliding member 132a: fastening member
133: sliding shaft 133a: screw coupling part
134: spring 135: tightening nut
140: scroll-type drum 141: semicircular body
142: opening 143: inflow guide
150: drum driving unit 151: drum driving motor
152: reducer 152a: rotation shaft
153: drive sprocket 154: driven sprocket
155: chain 160: transfer screw
161: screw shaft 162: screw blade
170: screw driving unit 171: screw driving motor
172: reducer 172a: rotation shaft
173: driven sprocket 180: scum acceleration part
181: rotation shaft 181a: blade fixing part
182: blade 183: scum acceleration moving part
183a: scum acceleration motor 183b: reducer
183c: axis 183d: driven croquet
190: scum discharge box

Claims (5)

a running cart installed to run on the upper side of the settling tank along the rail provided in the settling tank;
a fixed pipe installed in the width direction on the traveling cart and having an inlet for the inflow of scum to the inside;
a height adjustment unit for adjusting the height of the fixed pipe from the traveling cart;
a scroll-type drum that is rotatably installed on the outer circumferential surface of the fixed pipe, introduces scum to the inside through an opening submerged in the water surface during rotation, and supplies the scum to the inside of the fixed pipe through the inlet;
a drum driving unit installed on the traveling cart to rotate the scroll-type drum;
a transfer screw installed inside the fixed pipe and transferring the scum introduced through the inlet when rotating to the outside; and
a screw driving unit installed on the traveling cart to rotate the transfer screw;
including,
The height adjustment unit,
a fixed body fixed to the fixed pipe;
a sliding member provided on the fixed body;
a plurality of sliding shafts provided perpendicular to the traveling cart so as to be slidably coupled to the sliding member;
a spring installed on each of the sliding shafts to elastically support the sliding member upward; and
A tightening nut that is screwed to the upper end of each of the sliding shafts and adjusts the height of the fixing pipe together with the sliding member according to the degree of tightening and loosening;
A mobile scum removal device installed at both ends of the fixed pipe, respectively. delete The method according to claim 1,
The scroll-type drum,
When a semicircle having a cross-section of a semicircle faces each other so that the center is offset from each other, openings are formed along the longitudinal direction on both sides that are displaced to protrude, and an inflow guide extending outward along the outer circumferential surface from each of the openings to guide the inflow of scum Formed, removable scum removal device. The method according to claim 1,
Further comprising a scum accelerator for providing the scum of the water surface to the scroll-type drum side,
The scum acceleration unit,
a rotation shaft rotatably installed by a shaft support portion extending from the traveling cart so as to be parallel to the front end of the scroll-type drum;
a blade fixed to the rotating shaft to move the scum to the scroll-type drum shaft when rotating; and
a scum acceleration driving unit installed on the traveling cart to rotate the rotating shaft;
Including, a mobile scum removal device. 5. The method according to claim 4,
The scum acceleration unit,
The blade is fixed by a fixing bracket fixed to the rotation shaft by welding, and the blade is provided to be positioned at a height above the rotation center when stopped, a movable scum removal device.

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