KR20240011555A - drum screen apparatus - Google Patents

Abstract

An embodiment of the present invention discloses a drum screen device in which the filter mesh is not easily torn even under strong water pressure and is easy to maintain. The disclosed drum screen device forms the framework of a simple water tank and has a support frame for supporting the drum module, a square barrel shape with an open top, temporarily stores water from which sludge has been removed, and allows water filtered through a drain to be used for other water treatment. A drum is assembled in a form that surrounds the drum body, a simple water tank for discharging back into the device or aquaculture tank, a hollow central axis installed on the upper side of the simple water tank, a drum body rotatably installed on the central axis, and the drum body. A drum module consisting of a plurality of screen panels for filtering sludge from contaminated water received inside, an MC plastic shaft bearing rotatably connecting the drum body to the central axis, and located at an opening on one side of the drum module A water intake module for transporting contaminated water to the inside of the drum, a drum driving unit for rotating the drum module, and a nozzle for spraying the washing water sucked by the water pump to shake off the sludge attached to the inside of the screen panel. It includes a module and a sludge collection unit for receiving sludge separated from the screen panel by the washing water injection module and discharging it to the outside.

Description

drum screen apparatus

The present invention relates to a drum screen device for primary purification by removing sludge from contaminated water. More specifically, it is capable of purifying a plurality of aquaculture tanks at the same time through multiple inlets, and controls the bending in the vertical and horizontal directions. A drum screen device that uses a stainless steel screen panel that is resistant to tearing even under strong water pressure, which can be used adaptively on drums of various diameters, reducing manufacturing costs, and adopts a prefabricated plastic V-belt pulley as a means of transmitting drum rotation power. will be.

In general, fish farming refers to raising fish by adding artificial facilities and means to suit the habits of fish. Fish farming methods include environmental conditions of the place where fish are to be raised, that is, natural environmental conditions such as water quantity, water quality, water temperature, and terrain slope. Depending on the type of meat (hot water or cold water), you can select one of various methods such as static method, flowing water method, circulating filtration method, and cage method.

In addition, since fish farms require a large amount of water, even when purifying the fish farm water and reusing some of it or discharging the water used in the fish farms into the river, it is necessary to purify and discharge the contaminated water in accordance with environmental laws. In particular, in circulating filtration fish farms, the total water volume is small compared to the amount of fish received, so the rate of water quality deterioration due to waste such as excrement is high, so it is necessary to quickly filter and purify the fish water in the tank.

In this way, the 'drum screen (filter)', which is commonly used to remove foreign substances (sludge) in fish farming, supplies a certain amount of used fish farming water to the drum screen through a pump, etc., and then goes through filtration through the drum screen. This is a device that supplies fish farming water purified by microorganisms back to the water tank.

The 'drum screen', announced as registration number 10-1009439 in the Registered Patent Gazette of the Korean Intellectual Property Office, is simple to install by using a simple water tank, requires less time and cost for installation work, and has a small installation space, so site use efficiency is high. As a result, productivity per unit area increased.

The 'drum screen device for water purification', published under Publication No. 10-2016-0004499 in the Korean Intellectual Property Office Publication Patent Publication, does not use washing water when removing contaminants attached to the drum screen, but uses the suction power of a vacuum to remove contaminants. It is collected by separating it from a strainer.

In addition, the 'drum screen device for fish farms', published as Publication No. 10-2021-0154597 in the Korean Intellectual Property Office Publication Patent Publication, transmits the rotational force for the rotation of the drum screen through physical engagement between gears, which is generated when the drum screen rotates. This can reduce vibration or noise.

KR 10-1009439 B1 KR 10-2016-0004499 A KR 10-2021-0154597 A

Conventional drum screen devices for fish farms have a single inlet and the filter net is made of fine nylon fabric, so when fish are raised in multiple rearing tanks, multiple drum screens must be installed, which increases costs and causes strong water when sludge clogs the filter. The nylon filter net is often torn by water pressure, and the nylon net and the grid that supports it are cracked by the water pressure, and as the sludge moves there, they break finely, making filtration difficult. Even if the nylon net is slightly torn, the entire filter needs to be replaced. There is a problem of having to manufacture filter nets with various diameters depending on the size of the drum.

The present invention was proposed to solve these conventional problems, and the technical problem to be solved by the present invention is to filter a plurality of rearing tanks with one drum by using a plurality of water intake ports, and to filter various size of water with one filter net. It can be used on drums, and the filter net is made of stainless steel, so the filter net does not tear easily even under strong water pressure. Even if it is torn, the torn part can be easily repaired, making it easy to maintain. The rotary power transmission device is also made of prefabricated plastic. By using a V-belt pulley, rotation noise is reduced, and it provides a convenient drum screen device by allowing double or triple pulleys to be used depending on the size of the drum.

An embodiment of the present invention discloses a drum screen device in which the filter mesh is not easily torn even under strong water pressure and is easy to maintain.

The disclosed drum screen device forms the framework of a simple water tank and has a support frame for supporting the drum module, a square barrel shape with an open top, temporarily stores water from which sludge has been removed, and allows water filtered through a drain to be used for other water treatment. A drum is assembled in a form that surrounds the drum body, a simple water tank for discharging back into the device or aquaculture tank, a hollow central axis installed on the upper side of the simple water tank, a drum body rotatably installed on the central axis, and the drum body. A drum module consisting of a plurality of screen panels for filtering sludge from contaminated water received inside, an MC plastic shaft bearing rotatably connecting the drum body to the central axis, and located at an opening on one side of the drum module A water intake module for transferring contaminated water to the inside of the drum without spilling it outside, a drum drive unit for rotating the drum module, and a nozzle spraying the washing water sucked by the washing pump to shake off the sludge attached to the inside of the screen panel. It includes a washing water spray module for receiving sludge separated from the screen panel by the washing water spray module and a sludge collection unit for discharging it to the outside.

The water intake module is composed of a plurality of water intake pipes and a leak prevention wing to prevent contaminated water discharged from the water intake pipe into the drum from leaking to the outside, so that it can simultaneously treat contaminated water from several rearing tanks or open-air fish farms. there is.

The screen panel is supported by a plastic frame with a rectangular lattice structure of fine stainless steel wire mesh through mesh injection molding, and a horizontal adjustment groove is formed at the center of the long side of the plastic frame to correct horizontal bending during injection. A diameter adjustment groove is formed in the center of the short side to adjust the circumferential angle according to the diameter of the drum.

The screen panel has uneven protrusions formed on both sides of the short side of the plastic frame to prevent the watertight agent from coming off, and a bending guide protrusion for guiding drum bending is formed on a portion of the long side of the plastic frame.

In addition, there is a chin inside the long side edge of the screen panel to prevent sand or various foreign substances from easily flowing down when the drum rotates upward.

The MC plastic shaft bearing of the drum module has a circular groove that guides the flow of lubricating water at the center of the cylinder's circumference, and a lubricating water supply hole is formed in the center of the groove, and is inclined toward the lubricating water supply hole, so that the external Lubricating water can be easily supplied to the contact surface with the central axis through the supply hole, making lubrication by water possible.

In addition, rotational power is transmitted using prefabricated plastic V-belt pulleys, which reduces noise when rotating, and can be used by overlapping pulleys in double or triple configurations depending on the size of the drum or the required force.

According to an embodiment of the present invention, it is possible to simultaneously purify a plurality of rearing tanks by providing a plurality of inlets, and can be adaptively used for drums of various diameters by adjusting the vertical and horizontal bending of the screen panel. It has the advantage of dramatically reducing manufacturing costs.

In addition, according to an embodiment of the present invention, a fine stainless steel mesh is injected into a grid-structured plastic frame using plastic injection, so that it is not easily torn even under strong water pressure, and even if the stainless steel mesh is torn, only a small torn part within the grid structure can be easily replaced with silicone. Since it can be watertight or replaced, it has the effect of dramatically reducing maintenance costs.

And according to an embodiment of the present invention, the uneven protrusions on both sides of the screen panel can prevent silicone or other water-tight agents from coming off, and the banding guide protrusions can firmly band and tighten the drum-shaped screen filter plate, preventing water from being removed. Since the rotating shaft can be lubricated, it facilitates the rotation of the drum and prevents water pollution caused by the use of general lubricants.

In addition, it is a prefabricated plastic V-belt pulley that can be double, triple or more depending on the size of the drum or the amount of force required, so it can be easily used jointly on drums of various sizes.

1 is a schematic diagram showing the entire drum screen device according to an embodiment of the present invention;
Figure 2 is a schematic diagram showing an inlet module of a drum screen device according to an embodiment of the present invention;
Figure 3 is a perspective view showing a drum module of a drum screen according to an embodiment of the present invention;
Figure 4 is a schematic diagram showing an injection-type prefabricated plastic V-belt pulley according to an embodiment of the present invention;
5 is a schematic diagram showing a screen panel according to an embodiment of the present invention;
Figure 6 is a side view of screen panels arranged according to the size of the drum according to an embodiment of the present invention;
Figure 7 is a schematic diagram showing a lubricating water supply structure during drum rotation according to an embodiment of the present invention.

The technical problems achieved by the present invention and its implementation will become clearer through preferred embodiments of the present invention described below. The following examples are merely illustrative for illustrating the present invention and are not intended to limit the scope of the present invention.

1 is a schematic diagram showing the entire drum screen device according to an embodiment of the present invention.

As shown in FIG. 1, the drum screen device 100 according to an embodiment of the present invention includes a support frame 102, a simple water tank 104, a water intake module 110, a drum module 120, and a washing water spray module. It consists of (130), sludge collection unit 140, drum driving unit 150, and drum lubrication module 160.

Referring to FIG. 1, the support frame 102 forms the framework of the simple water tank 104 and supports the drum module 120, and the simple water tank 104 has an approximately square cylindrical shape with an opening at the top. The water from which sludge has been removed is temporarily stored in the drum module 120, and the filtered water is discharged back to another water treatment device or aquaculture tank through the drain 108, and also provides washing water to the washing pump.

The intake module 110 is located at one side opening of the rotating drum 120 and is used to transport contaminated water containing sludge from fish farms or open fields to the inside of the rotating drum 120, and is a contaminated water collection tank as shown in FIG. 2. A plurality of water intake pipes (112-1 to 112-4) attached to (116) and water leak prevention wings to prevent contaminated water discharged from the water intake pipes (112-1 to 112-4) into the drum from leaking to the outside. It consists of (114).

As shown in FIG. 3, the drum module 120 includes a drum body 122 rotatably installed on a hollow central axis 106 installed on the upper support frame 102 of the simple water tank 104, and a drum body 122 ) and a plurality of screen panels 170 for filtering sludge from contaminated water received into the drum, and an MC plastic cylindrical shaft bearing ( 160).

The drum rotation drive unit 150 is used to rotate the drum module 120 by a reduction motor 152 consisting of a driving V-belt pulley 154a and a driven plastic V-belt pulley 154b. For this purpose, the driven plastic V belt pulley 154b is attached to one side of the drum body 122, and is connected to the drive V belt pulley 154a attached to the reduction motor 152 and the V belt 156 to provide the driving force of the motor. is delivered.

The washing water injection module 130 is formed with a washing pump motor 132 for sucking the washing water and a plurality of nozzles 136, and is designed to spray the washing water sucked by the washing pump motor 132 into the nozzles 136. It consists of a nozzle pipe 134 and operates to shake off sludge attached to the inside of the drum screen panel 170 toward the sludge collection unit 140.

The sludge collection unit 140 receives the sludge (S) separated from the inside of the screen panel 170 by the washing water sprayer 130 into the collection container 142 and disposes of it through the discharge pipe 144 and the hollow 146 of the central axis 106. It is intended to be discharged to the outside.

The process of filtering contaminated water by the drum screen device 100 configured as described above is as follows.

First, when the power switch (not shown) of the control panel is turned on, the motor 152 of the drum rotation drive unit 150 operates to rotate the drum module 120 connected through the V-belt 156. A hose, etc. is connected to each pipe (112-1 to 112-4) at the intake part of the drum module 120, so that contaminated water from facility fish farms or open-air fish farms, etc. discharge. In the embodiment of the present invention, four water intake pipes are used as an example, but the number of water intake pipes can be increased or decreased as needed.

The contaminated water that has fallen into the drum module 120 has its sludge (S) removed by the screen panel 170 from the bottom, and the filtered water (purified water) is then transferred to the simple water tank 104 outside the drum module 120. As the drum module 120 rotates, the washing water sucked through the washing pump 132 is sprayed from the upper part by the nozzle 136, and the sludge attached to the inside of the rotating drum module's screen panel 170 is moved to the lower side. It is dropped into the sludge collection container (142) in .

The sludge (S) that falls into the sludge collection container 142 is discharged to the outside through the discharge pipe 144 attached to the bottom of the sludge collection container 142 and the hollow 146 of the central axis 106.

The filtered water in the simple water tank 104 flows back to another water treatment device or aquaculture tank through the drain 108.

At this time, the drum screen device 100 according to an embodiment of the present invention can receive contaminated water from several facility fish farms or open-air fish farms through a plurality of water intake pipes 112-1 to 112-4, so it can receive contaminated water from one drum. Screening devices can treat contaminated water from several rearing tanks.

Additionally, as the washing water, separate washing water may be used through an external pipe, or purified water from which sludge has been removed in the simple water tank 104 may be used. To this end, the drain 108 is formed slightly higher than the bottom surface of the simple water tank so that purified water can always remain in the simple water tank 104.

Figure 2 is a schematic diagram showing an acquisition module of a drum screen device according to an embodiment of the present invention.

According to an embodiment of the present invention, the water intake module 110 is attached to one side opening of the rotating drum 120, as shown in FIG. 2, to prevent contaminated water received inside the drum module 120 from splashing and leaking to the outside. It is composed of a water leak prevention wing 114 to prevent water leakage and a plurality of water intake pipes 112-1 to 112-4 attached to the contaminated water collection tube 116, and sludge from fish farms or open fields corresponding to the number of water intake pipes is contained. The contaminated water is delivered to the inside of the rotating drum (120).

Figure 3 is a perspective view showing a drum module of a drum screen device according to an embodiment of the present invention.

The drum module 120 of the drum screen device according to an embodiment of the present invention is manufactured by assembling a plurality of screen panels 170 by overlapping a drum body 122 made of a cylindrical frame, as shown in FIG. 3, It is possible to filter sludge from contaminated water by rotating the central axis 106 by the driving force of the drum rotation drive unit 150 and the lubrication module 160.

Referring to Figure 3, the drum body 122 is a cylindrical frame rotatably installed on the hollow central axis 106 installed on the upper support frame 102 of the simple water tank 104, and is formed by overlapping a prefabricated screen panel 170. It is designed to be attached. The screen panel 170 is assembled to surround the drum body 122 to filter sludge from the contaminated water received inside the drum, and the plastic shaft bearing 160 holds the drum body 122 on the central axis 106. It is a rotatably connected MC plastic cylinder and has a structure that can be lubricated by water.

Figure 4 is a schematic diagram showing an injection-type prefabricated plastic V-belt pulley according to an embodiment of the present invention.

Referring to Figure 4, the prefabricated plastic V belt pulley (154b) used in the embodiment of the present invention is assembled by dividing a circular V belt pulley into four parts, and the size and spacing of the fixing bolt holes (154c) of the pulley are the same. It can be conveniently used in 2 or 3 layers depending on the size of the drum or the need for power.

Figure 5 is a schematic diagram showing a screen panel according to an embodiment of the present invention, where (a) is a diagram showing the front (outer side) of the screen panel, and (b) is a diagram showing the rear (inner side). , (c) is a cross-sectional view of the screen panel. Figure 6 is a side view of the screen panel arranged according to the circular size (Φ) of the drum according to an embodiment of the present invention.

As shown in FIG. 5, the screen panel 170 according to an embodiment of the present invention has a structure in which a fine suspended wire mesh 174 is supported by a plastic frame 172 having a rectangular lattice structure by mesh injection molding. , A horizontal adjustment groove (176H) is formed in the center of the long side of the plastic frame 172 to correct horizontal bending during injection, and a diameter adjustment groove (176V) is formed in the center of the short side to adjust the circumferential angle according to the diameter of the drum. ) is formed so that it can adapt to various sizes of apertures.

In addition, the long sides of the plastic frame 172 can overlap each other in a concave and convex shape, as shown in (b) of FIG. 5. Concave-convex protrusions 172a are formed on both sides of the short side of the plastic frame 172 to prevent the watertight seal from coming off, and a banding is provided on a portion of the long side of the plastic frame 172 to facilitate positioning during assembly and to secure the wire during bending. Guide protrusions 178 are formed.

In addition, as shown in (c) of FIG. 5, there is a jaw 179 at the edge of the inner long side of the screen panel 170 to prevent sand or sludge from easily flowing down when the drum rotates upward.

According to this embodiment of the present invention, as shown in FIG. 6, the horizontal bending can be adjusted with the diameter adjustment groove (176V) of the screen panel 170, so that it can be used adaptively for drums of various diameters, thereby reducing manufacturing costs. The stainless steel mesh is meshed and injected into the grid-structured plastic frame using plastic injection, so it does not tear easily even under strong water pressure. Even if the stainless steel mesh is torn, only part of the grid structure can be easily watertight and replaced, so maintenance costs are also dramatically reduced. can be reduced to

And according to an embodiment of the present invention, the uneven protrusions 172a of the screen panel can prevent waterproof silicone or other watertight agents from coming off, and the screen panel 170 can be connected to the drum body 122 by the bending guide protrusions 178. It can be banded firmly with stainless steel wire, etc.

Figure 7 is a schematic diagram showing the lubrication structure of the drum screen during drum rotation according to an embodiment of the present invention.

As shown in FIG. 7, the drum lubrication module 160 according to an embodiment of the present invention has a groove 164 for guiding the flow of lubricating water formed at the center of the circumference of the MC plastic cylinder 162, and the groove 164 is formed in the groove 164 to guide the flow of lubricating water. A lubricating water supply hole 166 is formed in the center and is inclined (K) toward this supply hole 166, so that external lubricating water can be easily supplied to the rotational contact surface of the central axis 106 through the supply hole 166, thereby infiltrating the water. Lubrication is made possible.

In this way, in the embodiment of the present invention, lubrication can be performed using water, which facilitates the rotation of the drum and reduces wear of the plastic rotating cylinder, allowing it to be used for a long time and preventing water pollution caused by the use of general lubricants.

In the above, the present invention has been described with reference to an embodiment shown in the drawings, but those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom.

100: drum screen device 102: support frame
104: Simple water tank 106: Central axis
108: outlet 110: intake module
112-1~112-4: Water intake pipe 114: Water leak prevention wing
116: Contaminated water collection tank 120: Drum module
122: Drum body 130: Washing water spray module
132: Washing pump 134: Spray pipe
136: Spray nozzle 140: Sludge collection module
142: Receptacle 144: Discharge pipe
146: hollow 150: drum driving module
152: Reduction motor 154a: Driving pulley
154b: driven pulley 156: V belt
160: Lubrication rotation axis module 162: MC rotation cylinder
164: Groove 166: Lubricating water supply hole
170: Filtration screen panel 172: Plastic frame
174: Fine stainless steel wire mesh 176H: Horizontal adjustment groove
176V: Aperture adjustment groove 178: Banding guide
179: Screen panel inner jaw

Claims (8)

A support frame for forming the framework of the simple water tank and supporting the drum module;
A simple water tank in the shape of a square cylinder with an open top for temporarily storing water from which sludge has been removed and discharging the purified water back to another water treatment device or aquaculture tank through a drain;
A hollow central axis installed on the upper side of the simple water tank, a drum body rotatably installed on the central axis, and a plurality of drums assembled in a form surrounding the drum body to filter sludge from contaminated water received into the drum. A drum module consisting of a screen panel and a plastic shaft bearing rotatably connecting the drum body to the central axis;
a water intake module located at an opening on one side of the drum module to transfer contaminated water to the inside of the drum without flowing it to the outside;
A drum rotation driving unit of a plastic injection-assembled V-belt pulley for rotating the drum module;
a washing water injection module for spraying the washing water sucked by the washing pump through a nozzle to shake off sludge attached to the inside of the screen panel; and
A drum screen device including a sludge collection unit for receiving sludge separated from the screen panel by the washing water injection module and discharging it to the outside. The method of claim 1, wherein the acquisition module
It consists of a plurality of water intake pipes, a contaminated water collection tank, and a leak prevention wing to prevent contaminated water discharged from the water intake pipes into the drum from leaking to the outside.
A drum screen device that can simultaneously treat contaminated water from multiple facility rearing tanks or outdoor fish farms. The method of claim 1, wherein the screen panel is
It is a structure in which a fine stainless steel wire mesh is meshed and injected into a plastic frame with a rectangular lattice structure, and a horizontal adjustment groove is formed in the center of the long side of the plastic frame to correct horizontal bending during injection, and a drum is placed in the center of the short side. A drum screen device characterized in that an aperture adjustment groove is formed to adjust the circumferential angle according to the aperture. The method of claim 3, wherein the screen panel is
A drum screen device characterized in that both ends of the long side have winged screen panels that can be overlapped and watertight when the screen panels are assembled to the drum body. The method of claim 3, wherein the screen panel is
A drum screen device characterized in that uneven protrusions are formed on both sides of the short side of the plastic frame to prevent the watertight agent from coming off, and bending guide protrusions are formed on a portion of the long side of the plastic frame to guide bending. The method of claim 1, wherein the screen panel is
A drum screen device characterized by a ledge on the inside of the long side edge to prevent sand, sludge, etc. from flowing down when the drum rotates upward. The method of claim 1, wherein the plastic shaft bearing of the drum module is
A circular groove is formed in the center of the circumference of the MC plastic cylinder to guide the flow of lubricating water, and a lubricating water supply hole is formed in a part of the groove and is inclined toward the supply hole, so that external lubricating water flows into the central axis and through the supply hole. A drum screen device characterized in that it can be easily supplied to the contact surface and lubricated by water. The method of claim 1, wherein the drum rotation driving unit
A drum screen device that transmits the power of the reduction motor to the drum body and can be used in double or triple layers depending on the size of the drum or the amount of force required by using a prefabricated injection-type V-belt pulley.

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