KR20230140281A - Mobile sludge dewatering process equipment - Google Patents

Abstract

The present invention integrates the filter press and the cake transfer unit to move to the desired location through a moving means to perform the dehydration process, and at the same time dries and discards the moisture remaining in the sludge cake after dehydration, thereby reducing unnecessary weight at the time of disposal. It relates to a mobile sludge dewatering process device, and more specifically, to a dewatering process device that performs a dewatering process by compressing sludge containing wastewater under the control of a control unit, wherein the dewatering process device forces the sludge contained in the sludge storage tank. It includes a filter press that suctions and performs dehydration multiple times and then discharges the dewatered sludge cake, and a cake transfer unit that receives and transports the sludge cake discharged from the filter press and dries the sludge cake during the transfer process before discharging it. However, the filter press and the cake transfer unit are integrally fastened by the base and are movably detachable through a moving means.

Description

Mobile sludge dewatering process equipment}

The present invention integrates the filter press and the cake transfer unit to move to the desired location through a moving means to perform the dehydration process, and at the same time dries and discards the moisture remaining in the sludge cake after dehydration, thereby reducing unnecessary weight at the time of disposal. It relates to a mobile sludge dewatering process device.

Generally, in water treatment facilities such as gray water treatment facilities, wastewater treatment, urban sewage treatment, and other environment-related facilities, moisture is removed through a dehydration process from liquid treated material containing solids (hereinafter referred to as slurry). Filter presses are widely used as equipment for separating and discharging solid slurry in the form of cakes.

Such a conventional filter press includes a frame 10 having a rectangular frame shape as shown in FIGS. 1, 2, and 3, and is coupled to one upper side of the frame 10 and has a pressing member at the end on the rod 22 side. A driving cylinder (20) configured to be movable by combining (24), a support member (30) installed on the other upper side of the frame (10) and having a bush (32) connected to the center by a locking nut (34) , a fixed-side filter case (40) installed with both ends raised on the upper transverse member (12) of the frame (10) and coupled to the central support member (30) side by a bush (32), and the fixed-side filter case (40) The filter case 50 on the movable side is movably mounted and installed on the transverse member 12 of the frame 10 corresponding to the filter case 40 and is moved forward and backward by the pressing member 24 of the driving cylinder 20. ) is included, and a filter pad 60 is overlaid on the fixed and movable filter cases 40 and 50.

The fixed-side and movable-side filter cases (40, 50) are in close contact with each other, and cake receiving portions (42, 52) are recessed so that the dehydrated cake formed during the dehydration process stays and is accommodated therein. At (42, 52), a number of protrusions (44, 54) are formed in a certain shape so that the liquid to be dehydrated flows down during the pressurization process of the slurry, and communicate with grooves formed between these protrusions (44, 54) to dehydrate the dehydrated liquid. Discharge ports 46 and 56 for discharging liquid to the outside are perforated.

And at the rear end of the bush 32 coupled to the support member 30, there is a pipe (not shown) including a supply pump (not shown) through which the slurry processed by each filter case (40, 50) is supplied. It is installed, and a discharge pipe (72) is connected to the outlet (46, 56) so that the liquid separated from the filter case (40, 50) flows down and is discharged, and this discharge pipe is located again toward the gutter (70). It is installed.

In the filter press configured as above, when the slurry is supplied at a constant pressure through the bush 32 in a state in which the fixed and movable filter cases 40 and 50 are coupled to each other by the operation of the driving cylinder 20, each filter case Among the slurry supplied into the cake storage portions (42,52) of (40,50), moisture flows into the groove through the filter pad (60) and flows down, and the solid content of the slurry is separated by the filter pad (60). It stays in the cake storage units 42 and 52, and when the filter case 50 on the mobile side is separated and spaced out after a certain period of time, the dehydrated cake in the cake storage unit falls downward in a free fall manner.

However, although this dehydration device using a conventional filter press has the advantage of being easy to dewater sludge, it is generally installed fixedly on the ground at a work site, so there is the inconvenience of having to purchase and use expensive equipment. .

In addition, in the case of a conventional dehydration device, moisture contained in the obtained dehydration cake generates more weight than necessary, which causes another problem in that it is inconvenient to dispose of the cake through transportation.

Domestic registered patent No. 10-0280122 (announcement date: 2001.02.01.) Domestic registered patent No. 10-2193514 (announcement date: 2020.12.21.) Domestic registration utility No. 20-0282964 (announcement date: 2002.07.24.) Domestic registration utility No. 20-0328275 (announcement date: 2003.09.26.)

In order to solve the above-mentioned conventional problems, the present invention is to detachably mount the filter press, which is essentially used in the dehydration process of sludge, on a means of transportation such as a vehicle so that it can be moved to a desired location. The purpose is to quickly remove moisture so that the dehydrated cake can be easily transported when discarded.

In order to solve the above-described technical problem, the mobile sludge dewatering process device according to the present invention is a dewatering process device that performs a dewatering process by compressing sludge containing wastewater under the control of a control unit, and the dewatering process device includes a sludge storage tank ( 170), dewatering is performed multiple times by forcibly suctioning the sludge contained in the filter press 100, which discharges the dewatered sludge cake (S-C), and the sludge cake (S-C) discharged from the filter press 100. It includes a cake transfer unit 200 that receives and transfers the sludge cake (S-C) during the transfer process, dries it and then discharges it, and the filter press 100 and the cake transfer unit 200 are integrally fastened by the base 300. It is characterized in that it is movably detachable through a moving means (C).

In addition, the cake transfer unit 200 includes a transfer motor 211, a transfer roller 213 rotatably installed adjacent to each other in the case 212 so that it can be rotated by the transfer motor 211, and each A conveyor belt 217 that is rotatably installed to surround the outer surface of the transfer roller 213 and receives the sludge cake (S-C) falling from the filter press 100 and transfers it in the direction of the cake collection unit, and the conveyor belt ( After the drying member 220 and the sludge cake (S-C) that dry the sludge cake (S-C) being transported by electrical heat generation by applying the necessary power to the 217) are supplied to the cake collection unit, the conveyor belt 217 surface or It is preferable to include a brush member 230 that removes foreign substances by rubbing against at least one of the back surfaces.

In addition, the drying member 220 is provided inside the conveyor belt 217 and is electrically connected to a heating wire 221 that generates heat by an applied power source and is electrically connected to the conveyor belt 217. A first terminal 223 provided to rotate and a second terminal provided on the case 212 and electrically connected to the first terminal 223 so that the power applied from the control unit can be applied to the heating wire 221 ( 225), wherein the transfer roller 213 has a groove portion ( 215) is preferably formed.

In addition, it is preferable that the first terminal 223 and the second terminal 225 are detached from each other by the magnetic force of the magnet body 227 so that the necessary power required for heat generation of the heating wire 221 can be applied. .

In addition, the brush member 230 is rotatably installed in the case 212 and a brush motor 231 installed in the case 212, and rotates by the brush motor 231, and when rotated, the conveyor belt (217) It includes a brush 233 that removes foreign substances by friction with the surface or back surface, and a dust collector 235 that forcibly suctions foreign substances separated by the brush 233, wherein the dust collector 235 is connected to the case 212. It is preferable that the suction hole 216 formed in the pipe is connected to a pipe (PIPE) so that foreign substances can be sucked through the suction hole 216.

According to the present invention, unlike the prior art, the filter press and the cake transfer unit, which are integrally connected through the base, are loaded on a moving means and can be moved, thereby enabling the sludge dewatering process to be easily performed at a desired location.

In addition, when disposing of a dewatered sludge cake differently from the conventional method, the moisture remaining in the sludge cake is dried by a drying member before being disposed of, which has the effect of reducing unnecessary weight at the time of disposal.

1 to 3 are diagrams showing a dehydration device using a conventional filter press.
Figure 4 is a conceptual diagram of a mobile sludge dewatering process device according to the present invention.
Figures 5 and 6 are views showing a filter press and a cake transfer unit mounted on a moving means for the mobile sludge dewatering process device according to the present invention.
Figures 7 to 10 are diagrams showing the operational relationship between the filter press and the mobile sludge dewatering process device according to the present invention.
Figure 11 is a plan view of the cake transfer unit for the mobile sludge dewatering process device according to the present invention.
Figure 12 is a view showing the transfer of undried sludge cake to the mobile sludge dewatering process device according to the present invention.
Figure 13 is an enlarged cross-sectional view of the transfer member of Figure 11.
Figure 14 is a view showing the first terminal and the second terminal for the mobile sludge dewatering process device according to the present invention.
Figure 15 is an operational relationship diagram showing attachment and detachment between the first terminal and the second terminal in Figure 14.

Hereinafter, various embodiments will be described in more detail with reference to the attached drawings. The embodiments described herein may be modified in various ways. Specific embodiments may be depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the attached drawings are only intended to facilitate understanding of the various embodiments. Therefore, the technical idea is not limited to the specific embodiments disclosed in the attached drawings, and it should be understood that all equivalents or substitutes included in the spirit and technical scope of the invention are included.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but these components are not limited by the above-mentioned terms. The above-mentioned terms are used only for the purpose of distinguishing one component from another.

In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof. When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

In addition, when describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is abbreviated or omitted.

Hereinafter, the mobile sludge dewatering process device (hereinafter simply referred to as 'dewatering process device') according to the present invention will be described in detail with reference to the attached drawings.

First, as shown in FIGS. 4 to 6, the dehydration process device 1 according to the present invention largely includes a sludge storage tank 170, a filter press 100, and a cake transfer unit 200, and the above-described configurations It is controlled by the control unit 400, and in particular, the filter press 100 and the cake transfer unit 200 are mounted on a moving means (C), which means a movable vehicle, and move to a desired location to dehydrate sludge containing wastewater. Execute the process.

In more detail, the sludge storage tank 170 includes a supply pump 171 for collecting sludge for performing a dewatering process through the filter press 100, which will be described later.

For example, the sludge storage tank 170 is made of steel and has the shape of a hollow box, inside which sludge containing wastewater is accommodated.

The supply pump 171, controlled by the control unit 400, has one side connected to the sludge storage tank 170 and a pipe (PIPE), and the other side is connected to the filter press 100, so that the sludge to be dewatered is transferred to the filter press 100. supply to.

In addition, the filter press 100 is configured to perform dewatering by compressing the sludge supplied through the above-described supply pump 171 into a solidified sludge cake (SLUDGE CAKE) and includes a pressure pump 110 and a hydraulic cylinder ( 120), a filter plate 130, and a filtrate collection tank 160, and the filter press 100 and the cake transfer unit 200, which will be described later, are composed of a plurality of BEAMs having lengths in the vertical and horizontal directions. It is installed on the base 300 and has a structure that can be detachably mounted on the loading box formed on the moving means (C).

For example, as shown, the pressure pump 110 is fixedly installed on the base 300 to be controllable through the control unit 400, and transmits power to extend the rod of the hydraulic cylinder 120 in the forward and backward direction. .

In addition, the hydraulic cylinder 120 is configured to compress a plurality of filter plates 130 in one direction to dehydrate wastewater contained in sludge and form a sludge cake.

To this end, the hydraulic cylinder 120 is installed so that the rod moving forward and backward by the pressure pump 110 is guided to the base 300 and moves stably, and through its movement, the plurality of filter plates 130 are sequentially compressed or After compression, each filter plate 130 is handed over so that it can return to its initial arrangement with a predetermined gap.

To this end, the hydraulic cylinder 120 is connected to a plurality of filter plates 130 through a chain (not shown), and through this connection, each filter plate 130 is connected in the process of moving backwards. It retreats at regular intervals to return to its initial state of arrangement.

In addition, as shown in FIGS. 7 to 10, the outer surface of the filter plate 130 connected to the hydraulic cylinder 120 by a chain is guided to the base 300 and moves in line with the forward and backward direction of the hydraulic cylinder 120 at all times. In the pressed state, they are in close contact with each other so that a filtration chamber 131 forming a space for sludge to flow into the filter chamber is formed.

Each filter plate 130 is formed with a moving path for sludge to flow in, and the moving path is formed to communicate with the filter chamber 131 formed in a state in which a plurality of the filter plates 130 are in close contact with each other to form a sludge. As the paper flows into the filtration chamber 131, primary dewatering can be performed.

For this purpose, each filter plate 130 is formed with a discharge passage communicating with the lower part of the filter chamber 131, so that the primary dehydrated wastewater is discharged to the outside through the discharge passage, and at the same time, the discharged wastewater is discharged through the base 300. The filtrate is supplied to the collection tank 160 so that it can be collected.

At this time, it is preferable that the filtrate collection tank 160 is used by connecting a pipe to an arbitrary tank at the work site, rather than using a means of transportation (C), if necessary.

After the first dehydration process is performed inside the filtration chamber 131, air or water is supplied to the membrane 140 provided in the filter plate 130, and then the membrane 140 is blown to swell to perform the filtration. The sludge contained inside the fruit 131 is pressurized so that a secondary dehydration process can be performed.

At this time, after the secondary dewatering is in progress, the control unit 400 preferably injects air or water into the core tube 150 while the plurality of filter plates 130 are compressed to discharge the undewatered sludge.

Meanwhile, since the filter press 100 according to the present invention described above is the same as the structure of the conventional filter press 100 already mentioned in the prior art, other configurations and operational relationships other than those described above are subject to the above-described 'background of the invention'. The content mentioned in 'Technology that becomes this' is borrowed.

And, as shown in FIGS. 11 to 15, the cake transfer unit 200 transfers the sludge cake (S-C) obtained by the filter press 100 described above in one direction and at the same time transfers the sludge cake (S-C) It is designed to reduce the weight upon disposal by drying it by heat and includes a transfer member and a drying member 220.

For example, the transport member for transporting the sludge cake (S-C) in one direction is installed on the base 300 to be located below the filter press 100 and includes a case 212, a transport motor 211, and a transport roller 213. do.

The case 212 is fixed to the base 300 so that the top and one side have an open shape, and the sludge cake (S-C) discharged from the filter press 100 can be supplied to the open upper side, and another opening is provided. The side is formed to communicate with a loading box (not shown) or a cake collection unit (not shown), and the dried sludge cake (S-C) transferred through the transfer member is discharged so that it can be accommodated in the loading box.

At this time, it is preferable that an outlet 214 be formed in the lower part of the case 212 to discharge the sludge cake (S-C) that is not accommodated in the loading box or moisture generated during drying, and the outlet 214 is used as a dust collector to be described later. It is desirable to install it in communication with the inside of the loading box through (235) or a flexible pipe.

In addition, at least one suction hole 216 connected to the dust collector 235 is formed on the outer surface of the case 212, so that foreign substances present inside the case 212 are forced through forced suction by a suction motor (not shown). It is inhaled so that it can be accommodated in the dust collector (235).

In addition, as shown, a plurality of transfer rollers 213 are arranged adjacent to each other in the direction in which the sludge cake (S-C) is transferred so that both sides can be rotatably coupled to the case 212, and each of the transfer rollers ( 213) The conveyor belt 217 is rotatably wound on the outer surface so that the sludge cake (S-C), which freely falls on the upper surface of the conveyor belt 217, can be transported in the direction of the loading box due to its rotation.

Here, each transfer roller 213 is connected to a chain (not shown) or the like through a transfer motor 211 installed on the base 300 so that it can be controlled by the control unit 400 and receives power for rotation.

At this time, it is preferable that a groove 215 through which the first terminal 223 passes is formed on the outer surface of the transfer roller 213 so as not to interfere with the rotation of the first terminal 223, which will be described later.

In addition, the drying member 220 is configured to apply heat to the sludge cake (S-C) transported through the conveyor belt 217 to evaporate the moisture contained in the sludge cake (S-C), and is connected to the heating wire 221 and the first terminal. (223), a second terminal (225), and a magnet body (227).

That is, the drying member 220 in the present invention is configured to dry the viscous sludge cake so that it does not adhere to the outer surface of the conveyor belt 217 (see FIG. 12).

As shown, the heating wire 221 is provided at a predetermined interval within the conveyor belt 217 in relation to the volume of the conveyor belt 217 to generate uniform heat in the conveyor belt 217.

The first terminal 223 is provided on the bottom of the conveyor belt 217 so that it can be electrically connected to the heating wire 221 and has a structure that rotates together with the conveyor belt 217, and during rotation, the transfer roller 213 It is installed in a position where it can penetrate the groove 215 formed in the transport roller (0) to prevent interference with the transport roller (0).

The second terminal 225 is fixedly installed on the case 212 or the base 300 to be located inside the case 212 so that heat can be generated by power applied to the heating wire 221 through the control unit 400. It is electrically connected to the control unit 400 and receives the necessary power.

At this time, the first terminal 223 and the second terminal 225 can be detached from each other by the magnetic force of the magnet body 227, and in the state where the attachment by magnetic force is achieved, the necessary power required for heat generation of the heating wire 221 is used. It is desirable to have a structure in which power is applied and the power is cut off when disconnected.

That is, since the first terminal 223 in the present invention has a structure that rotates along the conveyor belt 217, a problem may occur in which it is not easy to apply the necessary power through the control unit 400. In order to solve the problem, the second terminal 225, which is electrically connected to the control unit 400 through a flexible cable, is connected to the first terminal 223 by magnetic force when the first terminal 223, which rotates in a fixed state, is approached. The two terminals (223, 225) have a structure in which they are detachable from each other, so that the necessary power is applied to the heating wire 221 at intervals only in the attached state, so that drying of the sludge cake (S-C) by heat generation of the heating wire 221 can be implemented. This is to ensure that there is (see Figure 15).

To this end, in the present invention, the first terminal 223 connected to the heating wire 221 and the second terminal 225, which is detached in the process of rotation with the first terminal 223 and applies the necessary power, are composed of a plurality of components. It is provided.

In addition, in the drying process in the present invention, before generating the sludge cake (S-C), the first and second terminals 223 and 225 are artificially attached for a certain period of time while the conveyor belt 217 is not rotating to heat the hot wire 221. ), the first and second terminals 223 and 225 are repeatedly attached and detached through rotation of the conveyor belt 217 in a state in which the conveyor belt 217 is sufficiently heated, so that the change in heated temperature is minimal. Let it be done.

Meanwhile, the cake transfer unit 200 according to the present invention may further include a brush member 230 for separating foreign substances adhered to the outer surface of the conveyor belt 217, and the brush member 230 includes a brush motor 231. and a brush 233 (see FIGS. 5 and 11).

The brush motor 231 is fixedly installed on the case 212 or the base 300 to enable operation control by the control unit 400, and is rotatably connected to a plurality of brushes 233 through a chain (not shown). The brush 233 transmits power to rotate.

As shown, a plurality of brushes 233 are installed so that the rotating outer surface can contact the inner or outer surface of the conveyor belt 217, and foreign matter adhered to the outer surface of the conveyor belt 217 is removed through rotation of the brush 233. is separated within the case 212.

At this time, it is preferable that the foreign matter separated by the brush 233 be forcibly sucked into the dust collector 235 through the suction hole 216 formed in the case 212 and collected.

As described above, the dehydration process device 1 according to the present invention is different from the conventional one in that the filter press 100 and the cake transfer unit 200, which are integrally fastened through the base 300, are loaded on the moving means (C). By making it movable, the sludge dewatering process can be easily performed at the desired location.

In addition, when disposing of the dehydrated sludge cake (S-C) differently from the conventional method, the moisture remaining in the sludge cake (S-C) is dried by the drying member 220 and then disposed of, thereby reducing unnecessary weight at the time of disposal. It has a possible effect.

As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , those skilled in the art can make various modifications and variations from this description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described later as well as all things that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .

1: Mobile sludge dewatering process device according to the present invention
100: Filter press
110: Pressurization pump 120: Hydraulic cylinder
130: filter plate 131: filtration chamber
140: Membrane 150: Core pipe
160: filtrate collection tank 170: sludge storage tank
171: Supply pump
200: Cake transfer department
211: transfer motor 212: case
213: transfer roller 214: outlet
215: groove 216: suction hole
217: conveyor belt 220: drying member
221: heating wire 223: first terminal
225: second terminal 227: magnet body
230: Brush member 231: Brush motor
233: brush 235: dust collector
300: Base
400: Control unit
SC: Sludge Cake

Claims (5)

In a dehydration process device that performs a dehydration process by compressing sludge containing wastewater under the control of a control unit,
The dehydration process device is
A filter press 100 that forcibly sucks the sludge contained in the sludge storage tank 170, dehydrates it multiple times, and then discharges the dewatered sludge cake (SC); and
A cake transfer unit 200 that receives and transfers the sludge cake (SC) discharged from the filter press 100, dries the sludge cake (SC) during the transfer process, and then discharges the sludge cake (SC),
A mobile sludge dewatering process device, characterized in that the filter press 100 and the cake transfer unit 200 are integrally fastened by a base 300 and are movably attached and detached through a moving means (C).
According to paragraph 1,
The cake transfer unit 200 is
Transfer motor (211);
Transfer rollers 213 rotatably installed adjacent to each other in the case 212 so that they can be rotated by the transfer motor 211;
A conveyor belt 217 that is rotatably installed to surround the outer surface of each of the transfer rollers 213 and receives the sludge cake (SC) falling from the filter press 100 and transfers it toward the cake collection unit;
A drying member 220 that applies necessary power to the conveyor belt 217 to dry the sludge cake (SC) being transported by electrical heat generation; and
After the sludge cake (SC) is supplied to the cake collection unit, a brush member 230 that removes foreign substances by rubbing against at least one of the surface or the back surface of the conveyor belt 217. A mobile device comprising a. Sludge dewatering process equipment.
According to paragraph 2,
The drying member 220 is
A heating wire 221 provided inside the conveyor belt 217 and generating heat by an applied power source;
A first terminal 223 electrically connected to the heating wire 221 and configured to rotate with the conveyor belt 217; and
A second terminal 225 provided in the case 212 and electrically connected to the first terminal 223 so that the power applied from the control unit can be applied to the heating wire 221,
The transfer roller 213 is characterized in that a groove 215 through which the first terminal 223 enters and exits is formed in the longitudinal direction to prevent interference with the first terminal 223 rotating by the conveyor belt 217. A mobile sludge dewatering process device.
According to paragraph 3,
The first terminal 223 and the second terminal 225 are detached from each other by the magnetic force of the magnet body 227, so that the necessary power required for heat generation of the heating wire 221 can be applied. Sludge dewatering process equipment.
According to paragraph 2,
The brush member 230 is
Brush motor 231 installed in case 212;
A brush 233 that is rotatably installed on the case 212, rotates by the brush motor 231, and removes foreign substances by rubbing against the surface or back surface of the conveyor belt 217 when rotated; and
Includes a dust collector 235 that forcibly sucks foreign substances separated by the brush 233,
The dust collector 235 is connected to a suction hole 216 perforated in the case 212 and a pipe (PIPE) to allow foreign substances to be sucked through the suction hole 216.

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