KR101302269B1 - Hydrocyclone concentrator - Google Patents

Abstract

PURPOSE: A hydrocyclone concentration device in which filter liquor is filtered then inserted inside a cylindrical drum screen due to the level difference between injected sludge and the filter liquor and the pressure difference between the two, has a simple, excellent durability, inexpensive installation cost and simple maintenance. CONSTITUTION: A hydrocyclone concentration device has an outer tank (11), a sludge inlet port (13), a cylindrical drum screen (12), a filter liquor vent (15), a concentrated sludge outlet (14), a rotary motor (17), a hydrofoil arm (16) and hydrofoil (18). The cylindrical drum screen is fixed to the bottom of the outer tank. The hydrofoil is fixed to the edge of the hydrofoil arm to remove floc and solid materials by using the cavitation generated in the hydrofoil rear surface due to rotatory power. The angle of the wing installed at the edge of the hydrofoil is 30-60° in the rotational direction based on a perpendicular line to the straight line drawn from the cylinder drum screen center to the columnar direction. In order to improve the efficiency of the filtering by using the level difference between injected sludge and the filter liquor, the level of the filter liquor keeps lowering than the level of the injected sludge.

Description

Hydrocyclone Concentrator {Hydrocyclone Concentrator}

The present invention relates to a hydrocyclone concentrating device for reducing the amount of various kinds of sludge generated in the life including sewage sludge, food waste and livestock waste, more specifically, by injecting a polymer flocculant into the sludge solution After agglomeration of the sludge, the sludge is injected into the sludge inlet installed outside the hydrocyclone concentrator, and a cylindrical drum screen is fixed to the bottom to filter and separate the liquid from the sludge inside the hydrocyclone concentrator. A filtrate outlet for discharging liquid passing through a cylindrical drum screen is directed to a hydrocyclone concentrator installed at the bottom of the drum.

Various techniques have already been disclosed in the literature for a device for separating the liquid and solids that make up the sludge to reduce the amount of various kinds of sludge generated in the life including sewage sludge, food waste and animal waste. .

In related prior art, Korean Patent Laid-Open Publication No. 10-2001-0025528 discloses a slurry filtration method for improving the filtration efficiency with a simple configuration capable of filtering a slurry contained in a liquid through a supply pressure or a suction pressure. Frequently, the belt is damaged or broken, and there is a problem that the structure is complicated and not easy to maintain.

In another related art related art, Patent Application No. 10-2012-0127040, filed by the applicant of the present invention, discloses a technical configuration of a tower filter press for sludge dewatering, but this also frequently damages the belt by pressure. There is a problem that the structure is complicated and not easy to maintain.

The problem to be solved by the present invention is that the filtrate is injected into the cylindrical drum screen installed therein by the pressure difference caused by the difference in the water level and the difference between the water level and the sludge injected into the external tank, the structure is simple and durable It is excellent, reduces installation costs, and facilitates maintenance.

Another problem to be solved by the present invention is a hydrophilic vertically adjacent to the cylindrical drum screen in order to prevent the fine filtration hole formed in the cylindrical drum screen to block the liquid and solid contained in the sludge is blocked by the filtration process. One or more foil (hydrofoil) is installed to rotate by a motor to prevent clogging of the drum screen by the cavitation generated on the back of the hydro foil by the rotational force.

In another problem to be solved by the present invention, the outer tank is made to be sealed, and a rotating motor for rotating the high-foil is installed at the center of the outside of the tank, and a scrubber to clean the outside of the cylindrical drum screen inside the hydrofoil. By installing the odor does not leak to the outside, preventing the clogging of the cylindrical drum screen to efficiently concentrate the sludge.

Another problem to be solved by the present invention is to prevent the clogging of the filtration hole formed in the drum screen by rotating the hydrofoil with a motor and at the same time the heavy solid materials contained in the sludge by the centrifugal force generated by the rotating sludge It is pushed out to achieve efficient filtration.

Another problem to be solved by the present invention is to install a backwashing device capable of spraying water at a high pressure in the center or one side of the cylindrical drum screen to more quickly and efficiently block solids and flocs that are blocked in the filtration holes on the outside of the cylindrical drum screen. To wash and remove.

Means for Solving the Problems In order to reduce the amount of various types of sludge generated in the life including sewage sludge, food waste, and animal waste, the polymer flocculant is injected into the sludge solution to flocculate flocs. Then, the sludge is injected into the sludge inlet installed on the outside of the hydrocyclone concentrator, and a cylindrical drum screen fixedly installed at the bottom to filter and separate the liquid from the sludge inside the hydrocyclone concentrator, and passes through the cylindrical drum screen. A filtrate outlet for discharging a liquid is provided to provide a hydrocyclone concentrator fixedly mounted to the bottom of the drum screen.

Another solution of the present invention is a top and bottom adjacent to the cylindrical drum screen in order to prevent a large number of finely formed filtration holes formed in the cylindrical drum screen to separate the liquid and solid contained in the sludge is blocked by separation in the filtration process. Hydrofoil, which is installed at least one hydrofoil for a long time, is rotated by a motor to remove the material blocking the filtration hole of the drum screen due to the cavitation occurring at the rear of the hydrofoil due to the rotational force. To provide a clone concentrator.

In another solution of the present invention, the outer tank is manufactured to be sealed, and a rotary motor for rotating the hightrofoil is installed at an upper portion of the outer center of the tank, and is attached to the outside of the cylindrical drum screen inside the hydrofoil. Or it is provided with a scrubber to remove the solid material, the lower end of the cylindrical drum screen to provide a hydrocyclone concentrator is installed with a filtrate outlet to discharge the filtrate filtered by the drum screen as quickly as possible.

Another solution of the present invention is to spray the water at a high pressure to the center or one side of the cylindrical drum screen in order to more quickly and efficiently wash and remove the solids and flocs blocking the filtration holes on the outside of the cylindrical drum screen. To provide a hydrocyclone concentrator with a fixed backwashing device.

The present invention is simple in structure and excellent in durability because the filtrate is filtered and injected into the cylindrical drum screen installed therein by the differential pressure generated by the water level difference and the water level difference between the sludge and the filtrate injected into the external tank. The installation cost is reduced, and there is an advantageous effect to facilitate the maintenance.

Another effect of the present invention is a hydrofoil (up and down) adjacent to the cylindrical drum screen in order to prevent the fine filtration hole formed in the cylindrical drum screen to separate the liquid and solid contained in the sludge is blocked by the filtration process. One or more hydrofoils are installed and rotated by a motor to prevent clogging of the drum screen due to the cavitation occurring at the rear of the hydrofoil due to the rotational force.

In another effect of the present invention, the outer tank is manufactured to be sealed, and a rotary motor for rotating the hightrofoil is installed at the upper center of the outer tank, and the scrubber is cleaned to clean the outside of the cylindrical drum screen inside the hydrofoil. By installing the odor does not leak to the outside, it is possible to efficiently concentrate the sludge by preventing the clogging of the cylindrical drum screen.

Another effect of the present invention is to prevent the clogging of the filtration holes formed in the drum screen by rotating the hydrofoil with a motor and at the same time by rotating the sludge outside the drum screen to remove the heavy solids contained in the sludge by centrifugal force To achieve efficient filtration.

Another effect of the present invention is to install a backwashing device capable of spraying water at a high pressure in the center or one side of the cylindrical drum screen to more quickly and efficiently wash the solids and flocs blocked in the filtration holes on the outside of the cylindrical drum screen To remove it.

Figure 1 shows one embodiment of a hydrocyclone concentrator according to the present invention.
Figure 2 shows a plan view of the hydrocyclone concentrator according to Figure 1;

Hereinafter, the present invention will be described in detail.

Hydrocyclone concentrator according to the present invention floc by injecting and flocculating a polymer flocculant into the sludge solution to reduce the amount of various kinds of sludge generated in the life, including sewage sludge, food waste and livestock feces ), Then the sludge is injected into the sludge inlet installed on the outside of the hydrocyclone concentrator, and inside the hydrocyclone concentrator, a large number of filtration holes have a diameter of the size necessary for filtration to separate the liquid from the sludge. The formed cylindrical drum screen is fixedly installed on the floor.

The present invention is a hydrofoil (up and down) adjacent to the cylindrical drum screen to prevent a large number of finely formed pores formed on the side of the cylindrical drum screen in order to separate the liquid and solid contained in the sludge is clogged in the filtration process. One or more hydrofoils are installed and rotated by a motor to prevent clogging by removing substances blocking the cylindrical drum screen by the cavitation generated from the back of the hydrofoil by the rotational force.

The present invention prevents the clogging of the filtration holes formed in the cylindrical drum screen by rotating the hydrofoil with a motor and rotates the sludge outside the drum screen to push out the heavy solids contained in the sludge by centrifugal force to effectively filter the filtration. It is configured to achieve this. A specific embodiment according to the present invention will be described.

<Examples>

&Lt; Example 1 >

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described with reference to the drawings. Figure 1 shows one embodiment of a hydrocyclone concentrator according to the present invention.

Figure 2 shows a plan view of the hydrocyclone concentrator according to Figure 1;

The present invention is a hydrocyclone concentrator for separating the liquid components contained in the sludge in order to reduce the amount of various kinds of sludge generated in the life, including sewage sludge, food waste and animal waste.

In the specification of the present invention, the term 'cylindrical drum screen' is used as a shortened 'drum screen'.

In addition, the present invention is configured to inject sludge which needs to be concentrated by installing a sludge inlet at the top of the outer tank, as shown in Figure 1, the cylindrical drum screen is fixed to the inner center of the device is injected into the outer tank sludge The liquid component capable of passing through the filtration hole formed in the drum screen is filtered to be injected into the drum screen by the differential pressure generated by the water level difference and the water level difference between the sludge and the filtrate.

In addition, the present invention is configured to quickly discharge the filtrate so that the height of the sludge injected from the outside is formed higher than the filtrate present in the cylindrical drum screen in order to increase the efficiency of the filtration of the hydrocyclone concentrator.

It looks at in more detail based on FIG.

The hydrocyclone concentrator according to the present invention is agglomerated by injecting a polymer flocculant into the sludge solution to reduce the amount of various kinds of sludge generated in the life including sewage sludge, food waste and livestock waste for efficient concentration After forming the floc (floc) it is preferable to inject the sludge into the sludge inlet provided on the outer top of the hydrocyclone concentrator.

That is, by injecting a separate polymer flocculant into the front end of the hydrocyclone concentrator, a flocculation tank for forming a floc may be provided.

Another polymer flocculant injection method may be injected directly to the upper side of the hydrocyclone concentrator.

The floc formed sludge is injected into the sludge inlet (13 in FIG. 1) installed at the top of the hydrocyclone concentrator by the injection of the polymer flocculant. One side of the pipe for sludge injection is provided with a valve for sludge injection and blocking and an injection pump for injecting sludge.

Inside the hydrocyclone concentrator, a cylindrical drum screen with a number of holes having a diameter of the size required for filtration is fixed to the bottom to filter the liquid from the sludge.

The drum screen (12 of FIG. 1) is formed in a cylindrical shape, and numerous holes 21, diameters of 0.1 mm to 3 mm, are formed on the side, and are made of a rust-free metal material.

The cylindrical drum screen is preferably located at the center of the hydrocyclone concentrator.

Of course, the size of the filtration hole may be formed to a size out of the above-mentioned value if necessary, and the material may also be made durable and durable without rust.

The inner shape of the outer tank (11 of FIG. 1) located outside the hydrocyclone concentrator is also preferably made of cylindrical shape and arranged in the same concentric circle as the center of the cylindrical drum screen.

The external shape of the hydrocyclone concentrator may be manufactured in a circular shape or various shapes thereof.

The sludge is injected into the outside of the cylindrical drum screen at a set height from the sludge inlet, and the injected sludge is discharged from the sludge due to the differential pressure generated in the sludge due to the difference between the filtrate level and the level difference. It is configured to be filtered while entering through the formed filtration hole.

The ratio between the radius of the cylindrical drum screen and the inner radius of the outer tank can be variously designed and manufactured in consideration of 1: 2 or processing capacity and efficiency.

The lower end of the cylindrical drum screen is provided with a filtrate outlet (15 in FIG. 1) for discharging the filtrate filtered through the drum screen.

For efficient filtration it is desirable to keep the height (water level) of the sludge injected externally relative to the drum screen always higher than the height (water level) of the filtered filtrate.

The greater the difference between the height of the sludge injected from the outside and the filtered filtrate based on the cylindrical drum screen, the more the filtrate is filtered through the cylindrical drum screen due to the difference in pressure and height due to the weight of the sludge. Since it is possible to design and manufacture using it is preferable.

For this purpose, it is preferable to inject the sludge into the sludge inlet to the set height, and then close the valve installed at the sludge inlet and the concentrated sludge outlet, and open the valve installed at the filtrate outlet for concentration to keep the level of the filtrate at all times low. In the filtration process, flocs or solid materials may block the filtration holes on the outside of the drum screen, thereby greatly reducing the filtration efficiency.

In order to solve this problem, the hydrocyclone concentrator according to the present invention is installed with a hydrofoil (18, hydrofoil, hydrofoil) adjacent to the outside of at least one cylindrical drum screen (preferably between 5 mm and 100 mm) and rotated by a motor. Due to the pressure difference (cavitation) generated on the back of the wing of the hydrofoil, the floc or the solid material blocking the filtration hole is formed to fall.

The numerical value can be produced up and down the range according to the size of the outer tank and the drum screen, etc. and the width, length and shape of the wings can be modified and produced in various designs.

The hydrofoil 18 is fastened to one side of the hydrofoil arm 16, and the other side of the hydrofoil arm 16 is fastened and fixed to the rotation shaft of the motor (17 in FIG. 1).

The hydrofoil 18 and the hydrofoil arm 16 may be molded and manufactured in one piece, and each may be manufactured and fastened by fastening means such as bolts and nuts.

Although the number of the hydrofoils 18 is 4 in FIG. 1 and FIG. 2, 1, 2, or 3 or more may be installed.

As shown in FIG. 2, the angle of the vane installed at the edge of the hydrofoil 18 is perpendicular to the circumferential surface (perpendicular to the straight line circumferentially from the center of the cylindrical drum screen to form a greater pressure generated on the cylindrical drum screen surface). It is preferable to form between 30 ° to 60 ° in the direction of rotation based on), but can be designed and manufactured to a value out of this if necessary.

The difference in pressure generated on the surface of the cylindrical drum screen acts in the direction of floc or solid material dropping. 2 can be easily understood.

The motor (17 in Fig. 1) is fixed to the outside of the center of the lid covering the upper portion of the outer tank (11 in Fig. 1).

The lid located above the outer tank can be installed on a frame that is firmly installed to prevent odors from leaking out and support the motor.

Inside the hydrofoil 18, a scrubber (19 in FIG. 1) may be installed to remove flocs or solids attached to the outside of the drum screen in the filtration process as necessary. For example, this is to remove floc or solid material on the same principle as a vehicle wafer.

One or more scrubbers (19 of FIG. 1) installed inside the hydrofoil 18 may be installed, and may be installed with the same or less number of hydrofoils 18.

At the bottom of the outer tank, a concentrated sludge outlet 14 is provided for discharging the concentrated sludge by filtering the liquid contained in the sludge by a drum screen.

      Another embodiment of the present invention can spray water at a high pressure to the center or one side of the cylindrical drum screen in order to more quickly and efficiently wash and remove the solids and flocs blocking the filtration holes on the outside of the cylindrical drum screen The backwashing device can be fixedly installed (not shown).

More specifically, the backwashing device is provided with a number of holes so that the pipe is installed in the center or one side of the cylindrical drum screen vertically long, and the water can be sprayed in all directions up and down in the vertically installed pipe.

In another embodiment of the present invention, in order to inject water at a high pressure into the backwashing device consisting of a pipe formed with holes, it is connected to a pump or pipe installed outside with a pipe or a hose to spray compressed water to remove and remove solids and flocs blocking the filtration holes. Can be configured to do this.

During backwashing, the water passing through the filtration holes of the cylindrical drum screen is configured to be discharged to the concentrated sludge outlet.

The backwashing device installed inside the cylindrical drum screen can be made in various technical configurations in addition to the above-described configuration, and if the configuration can remove the solids and flocs by spraying compressed water to the filtration hole formed in the cylindrical drum screen Belongs to the scope of protection.

The present invention can be configured to interlock with a motor, such as a reducer or a sprocket to reduce the rotational speed of the motor rotation shaft if necessary.

In the specification of the present invention, terms having the same meaning are mixed and described in a range easily understood by those skilled in the art.

The present invention relates to a hydrocyclone concentrating device for reducing the amount of various kinds of sludge generated in the life including sewage sludge, food waste and livestock waste, and to agglomerate by injecting a polymer flocculant into the sludge solution. Then, the sludge is injected into the sludge inlet installed on the outside of the hydrocyclone concentrator, and a cylindrical drum screen fixedly installed at the bottom to filter and separate the liquid from the sludge inside the hydrocyclone concentrator, and passes through the cylindrical drum screen. The filtrate outlet for discharging a liquid provides a hydrocyclone concentrator fixedly installed at the bottom of the drum screen, which is highly industrially available because of its durability and reduced installation costs.

11; Outer tank 12; Drum screen
13; Sludge inlet 14; Concentrated Sludge Outlet
15; Filtrate outlet 16; Hydrofoil cancer
17; Motor 18; Hydrofoil
19; Scrubber 20; Bottom surface
21; Filtration hole

Claims (7)

In the hydrocyclone concentrator,
An outer tank into which sludge for concentration is injected;
Sludge inlet for injecting sludge installed in the outer tank;
A cylindrical drum screen fixedly installed at the bottom of the outer tank and having a filtration hole formed at a side surface for concentrating sludge injected into the outer tank;
A filtrate outlet for discharging the filtrate, installed at the bottom of the cylindrical drum screen;
A concentrated sludge outlet installed at the bottom of the outer tank to discharge concentrated sludge;
The cylindrical drum screen has a rotating motor installed at the center of the upper outer tank to rotate the hydrofoil arm with a hydrofoil attached to remove the floc and solid material blocking the filtration hole by using a pressure difference during filtration to increase the filtration efficiency. ;
A hydrofoil arm fastened to the rotating shaft of the motor to securely install one or more hydrofoils adjacent to the cylindrical drum screen; And
It consists of a hydrofoil fixed to the edge of the hydrofoil arm to remove flocs and solids by using the cavitation generated from the back of the hydrofoil by the rotational force,
The angle of the wing installed at the edge of the hydrofoil is in the direction of rotation about the line perpendicular to the circumference perpendicular to the circumferential direction from the center of the cylindrical drum screen to generate a high pressure when removing the floc and solid matter attached to the drum screen 30 to 60 degrees,
A hydrocyclone concentrator, characterized in that the filtrate level is kept lower than the injected sludge level in order to increase the efficiency of the filtration using the difference between the level of the injected sludge and the filtrate level. delete The method according to claim 1,
Hydrocyclone concentrator, characterized in that the scrubber for removing the solids and flocs attached to the cylindrical drum screen is installed inside the hydrofoil. The method according to claim 1 or 3,
The inner shape of the outer tank is made cylindrical in order to achieve more efficient filtration by using the centrifugal force generated by the rotation of the hydrofoil installed adjacent to the cylindrical drum screen,
Hydrocyclone concentrator, characterized in that the concentric configuration with the cylindrical drum screen. The method according to claim 1,
The hydrocyclone concentrator further includes a backwashing device which is fixedly installed in the cylindrical drum screen to spray solid water blocking the filtration holes formed in the cylindrical drum screen and compressed water to wash the flocs. Cyclone Thickener. delete The method of claim 4,
The hydrocyclone concentrator is a hydrocyclone concentrator, characterized in that provided with a speed reducer or a sprocket to reduce the rotational speed of the motor shaft.

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