KR20110138941A - Apparatus for removing solids - Google Patents

Abstract

PURPOSE: An apparatus for eliminating solid materials is provided to improve the separating efficiency of fluid and solid materials by eliminating the solid materials from the fluid based on a vortex part in a double pipe. CONSTITUTION: An outer pipe part(10) passes fluid containing solid materials. A vortex part(20) is installed in the outer pipe part and forms vortex to separate fluid and solid materials. An inner pipe part(30) is installed in the outer pipe part and the downstream of the vortex part and drains the fluid without the solid materials. A solid material discharging part(40) is installed at the downstream of the vortex part and discharges the separated solid materials.

Description

Apparatus for removing solids

The present invention relates to a solids removal device, and more particularly, to a solids removal device for separating and removing the solids from the fluid containing the solids and draining the fluid from which the solids are separated.

Since various industrial wastewater, sewage, and pig manure contain solids such as sludge, the purification process cannot be performed properly without separating and removing such solids. Therefore, the solids must be removed in advance. .

In particular, one of the most difficult processes in the treatment of manure, livestock wastewater and high concentration organic wastewater is the process of separating and removing solids. Conventional solids removal includes screen separation such as drum screen, sieve screen, special sponge suction suction and Centrifugal filter method using a strainer, vibrating solid-liquid separator, the method of dehydrating the whole liquid after injection, or the method of dehydration after the injection or sedimentation separation of the drug is mainly used.

As a method of separating the suspended solids from the suspension, there is a method of settling by gravity.

Suspended solids settle when gravity is greater than the inertial and viscous forces acting on the particles. Sedimentation separation is applied to sedimentation basins, primary sedimentation tanks, secondary sedimentation tanks, and concentration tanks.

Gravity sedimentation basins are bulk sedimentation basins that settle flocs formed by flocculation by gravity and require a residence time of about 3 to 5 hours. For floc to settle well in such gravity settler, the fluid flow in the settler must remain uniform throughout its width and depth.

In practice, however, it is very important to maintain a uniform flow of fluid in the sedimentation basin due to the formation of short-circuit flows due to density differences due to temperature differences or turbidity differences between the influent and the sedimentation basin, and wind or structural irregularities in the outflow and inflow sections. It is difficult.

In particular, the limited capacity of sedimentation basin and sedimentation basin can not afford the amount of water treatment to increase the load of water and reduce the residence time. Due to the increase in water load and decrease in residence time, there is a problem in that floc removal efficiency is lowered.

As a means to solve this problem is to use a slope plate settler. However, since the inclined plate must extend to the bottom of the sedimentation basin, it is difficult to operate the sludge collector and the inclined plate stacked in three stages is difficult to maintain or maintain.

In addition, except for the initial installation of the inclined plate, the flocks accumulated on the inclined plate not only prevents the smooth flow of water flow, but also may not be able to support the weight of the floc, thereby causing the inclined plate to be broken.

Sedimentation and sedimentation facilities require a lot of processing area to secure a constant surface area, and include additional facilities such as sludge collectors or sedimentation lifters, which have problems in maintenance and management. It takes a lot of site area, there is a problem that the installation cost increases and maintenance is difficult.

The present invention has been made to solve the above-mentioned conventional problems, not only to improve the separation efficiency of the fluid and solids, but also to separate the fluid and solids with the vortex to reduce the size of the solids removal device, screw the vortex part It is easy to form the vortex of the fluid to give a centrifugal force to the fluid, it is easy to separate and remove the fluid and solids, it is easy to drain the fluid, to vary the discharge direction of the solids, the solids It is an object of the present invention to provide a solids removal device for facilitating the discharge.

The present invention for achieving the above object, the exterior portion through which the fluid containing the solid; A vortex part installed inside the exterior part to form a vortex to separate the fluid and the solid material; An inner tube portion disposed inside the outer portion downstream of the vortex portion to drain fluid from which solid matter is separated by the vortex portion; And a solid discharge part installed downstream of the vortex part to discharge the solid matter separated from the fluid by the vortex part.

The exterior portion of the present invention, the inlet portion is expanded. The vortex part of the present invention comprises a screw fixed to an inner wall of the outer part. The inner tube portion of the present invention has an inner diameter smaller than the outer portion so that the outer wall is spaced apart from the inner wall of the outer portion by a predetermined distance.

The inner tube portion of the present invention, the inner wall is formed to extend from the inlet portion to the outlet portion. The outlet portion of the present invention is in close contact with the inner wall of the rear end of the outer portion.

The solid discharge portion of the present invention is formed by cutting the outer wall of the outer portion to the lower portion of the inner tube portion. The said solid discharge part of this invention is formed between the inner wall of the said exterior part, and the outer wall periphery of the said inner pipe part. The solids discharge portion of the present invention, a plurality of spiral blades are formed between the inner wall of the outer portion and the outer wall of the inner tube portion to induce the discharge of the solids.

As described above, the present invention separates and removes the solids by the vortex part in the double pipe from the fluid containing the solids, thereby improving the separation efficiency of the fluid and the solids as well as separating the fluid and the solids into the small vortex part. Thereby reducing the size of the solids removal device.

By expanding the inlet portion of the double pipe to increase the flow rate of the incoming fluid to impart a centrifugal force of the fluid for separation of the fluid and the solid, it is easy to form the vortex of the fluid by forming the vortex part with a screw.

It is easy to separate and remove the solids from the fluid by installing the inner tube portion in the center on the flow path inside the exterior portion, and to extend the flow path of the inner tube portion to the rear to facilitate the drainage of the fluid.

By forming the solid discharge portion to the rear or the lower portion of the exterior portion can not only vary the discharge of the solid can be applied to various parts.

In addition, the spiral blade is formed in the solid discharge portion formed in the rear of the exterior portion to facilitate the discharge of the solids.

1 is a perspective view showing a solids removing device according to a first embodiment of the present invention.
2 is an exploded perspective view showing a solids removing device according to a first embodiment of the present invention.
3 is a cross-sectional view showing a solids removing device according to a first embodiment of the present invention.
4 is a perspective view showing a solids removing device according to a second embodiment of the present invention.
5 is an exploded perspective view showing a solids removing device according to a second embodiment of the present invention.
6 is a cross-sectional view showing a solids removing device according to a second embodiment of the present invention.
7 is an application state diagram showing an application example of the solids removing device according to the second embodiment of the present invention.

Hereinafter, the first embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing a solids removing apparatus according to a first embodiment of the present invention, Figure 2 is an exploded perspective view showing a solids removing apparatus according to a first embodiment of the present invention, Figure 3 is a first embodiment of the present invention It is sectional drawing which shows the solid substance removal apparatus by an example.

As shown in Figures 1 to 3, the solids removing device of the present embodiment consists of the exterior portion 10, the vortex portion 20, the inner tube portion 30 and the solids discharge portion 40 solids in the fluid containing solids This will separate and remove the solids and drain the separated fluid.

Exterior portion 10 is a cylindrical pipe member for passing the fluid so that the fluid containing the solid flows in and out, it consists of a flow portion 11, the inlet portion 12 and the outlet portion (13).

The flow part 11 is a cylindrical pipe, and forms a flow path through which the fluid containing the solid material passes. The inflow portion 12 is formed at the inlet of the exterior portion 10 and is formed to extend outward to reduce the flow path introduced from the outside to increase the flow velocity of the fluid. The outlet portion 13 is formed at the outlet of the exterior portion 10.

2 and 3, the vortex portion 20 is installed in front of the inner wall of the outer portion 10 to form a vortex to separate the fluid and the solid, with the central axis 21 and the screw 22 consist of.

The central shaft 21 is formed at the center of the vortex portion 20, and the screw 22 fixed to the inner wall of the exterior portion 10 is formed on the central shaft 21. Therefore, the fixed screw 22 is restarted to form the vortex while the fluid including the solid passes through the vortex 20 at high speed.

Thus, the settling velocity (Vc) of the particles in the centrifugal force field generated by rotating the fluid containing the solid at high speed is expressed by the Stokes' law of the settling velocity (Vg) in the gravitational field as shown in Equation 1 below. Is displayed.

From here,

Ps: density of solids (kg / m 3), P1: density of liquids (kg / m 3)

μ: viscosity of liquid (kg / msec), d: diameter of solid particles (m)

r: rotation radius (m), ω: angular velocity (rad / sec)

N: revolutions (rpm), g: gravity acceleration (가).

In addition, the ratio of the artificial centrifugal acceleration and the gravitational acceleration (g) by the rotational motion is called the centrifugal effect (G), which is represented by the following equation 2 as an index indicating the magnitude of the centrifugal force.

The relationship between the sedimentation velocity (Vc) of the particles in the centrifugal force field and the sedimentation velocity (Vg) in the gravitational field is expressed by Equation 3 below.

Due to the centrifugal force generated by the rotary blades of the screw 22, the sedimentation speed of the particles is maintained at G times the gravitational field, so that the sedimentation of the particles can be induced within a short time. Therefore, when the solids removal device of the present embodiment is applied to the settlement, the residence time of the immersion water can be kept short in the settlement and the required site area required for the installation of the settlement is reduced.

2 and 3, the inner tube portion 30 is installed inside the outer portion 10 downstream of the vortex portion 20 to drain the fluid from which the solids are separated by the vortex portion 20. , The inlet portion 31, the inclined portion 32 and the outlet portion (33).

The inlet portion 31 is a cylindrical pipe member having an inner diameter smaller than that of the outer portion 10, and is formed along the flow path of the fluid in the center of the outer portion 10 so that the outer wall is separated from the inner wall of the outer portion 10 by a predetermined distance. It is.

The inclined portion 32 is formed such that the inner wall of the inner tube portion 30 is inclined from the inlet portion 31 to the outlet portion 33 so that the flow path is expanded.

The outlet part 33 is in close contact with the inner wall of the rear end of the exterior part 10 to guide the solids separated from the fluid by the vortex part 20 to the solids discharge part 40.

As shown in FIGS. 2 and 3, the solid discharge part 40 is installed downstream of the vortex part 20, and the outer wall of the exterior part 10 is cut out below the inner pipe part 30. Therefore, as shown in FIG. 3, the solid matter separated from the fluid by the vortex portion 20 is discharged through the solid discharge portion 40 to the lower portion of the inner tube portion 30, that is, below the outer portion 10. .

Hereinafter, a second embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

4 is a perspective view showing a solids removing device according to a second embodiment of the present invention, Figure 5 is an exploded perspective view showing a solids removing device according to a second embodiment of the present invention, Figure 6 is a second embodiment of the present invention 7 is a cross-sectional view showing a solids removing device according to an example, and FIG. 7 is an application state diagram showing an application example of the solids removing device according to the second embodiment of the present invention.

As shown in Figures 4 to 6, the solids removing device of the present embodiment comprises an outer portion 10, the vortex portion 20, the inner tube portion 30 and the solid discharge portion 50, and the first embodiment Since the configuration of the exterior part 10, the vortex part 20, and the inner tube part 30 are the same, and only the configuration of the solid discharge part 50 is the same, a detailed description thereof will be omitted and the solid discharge part 50 will be omitted. Explain only.

The solids discharge part 50 of the present embodiment is formed between the inner wall of the outer portion 10 and the outer wall circumference of the inner tube portion 30 so that the solids separated from the fluid by the vortex portion 20 are separated from the outer portion 10. Discharged to the rear.

In addition, a plurality of spiral blades 34 are formed in the solid discharge portion between the inner wall of the outer portion 10 and the outer wall of the inner tube portion 30 to induce the rear discharge of the solid. In particular, in this case, since the fluid and solids separated from each other by the vortex portion 20 are discharged together at the rear of the exterior portion 10, the discharge pipe is disposed at the rear of the inner tube portion 30 to prevent remixing therebetween. It is preferable that the fastening part 33a is formed at the outlet part 33 of the inner tube part 30 so as to couple the joint.

As shown in FIG. 7, when the solids removing device of the present embodiment is applied to the bulkhead of the settlement, when a plurality of solids removing devices are installed on the bulkhead and the inflow water containing the solids is passed, the inflow water passes from one side of the partition to the other. As a result, the solids are separated and removed downward, and only the influent from which the solids are removed passes through the partition wall.

Therefore, applying the solids removal device of the present embodiment to the settlement, it is possible to shorten the residence time of the influent water in the settlement and to reduce the required site area required for the installation of the settlement.

In particular, the solids removal device of the present invention can be applied to a variety of facilities, such as sedimentation basin as well as water pipes, sediment inflow prevention equipment in the lake, dredging or soil contamination separation equipment.

As described above, according to the present invention, the present invention separates and removes the solids by the vortex part in the double pipe from the fluid containing the solids, thereby improving the separation efficiency of the fluid and the solids as well as removing the fluids and the solids with the small vortex part. Separation can reduce the size of the solids removal device, expand the inlet portion of the double pipe to increase the flow rate of the incoming fluid to give the centrifugal force of the fluid for separation of the fluid and solids, forming the vortex with a screw Thereby providing an effect that facilitates vortex formation of the fluid.

In addition, by separating the inner tube portion in the center on the flow path inside the outer portion to facilitate the separation and removal of solids from the fluid, it is easy to drain the fluid by extending the inner tube portion to the rear to facilitate the drainage of the solid, Formed downward, it is possible not only to diversify the discharge of solids, but also to be applied to various parts, and provides a effect of facilitating the discharge of solids by forming a spiral blade on the solid discharge portion formed at the rear of the exterior portion.

The present invention described above can be embodied in many other forms without departing from the spirit or main features thereof. Therefore, the above embodiments are merely examples in all respects and should not be interpreted limitedly.

10: exterior 20: vortex
30: inner pipe portion 40: solids discharge portion

Claims (9)

An exterior portion through which the fluid containing the solid passes;
A vortex part installed inside the exterior part to form a vortex to separate the fluid and the solid material;
An inner tube portion disposed inside the outer portion downstream of the vortex portion to drain fluid from which solid matter is separated by the vortex portion; And
And a solids discharge part installed downstream of the vortex part and discharging the solid matter separated from the fluid by the vortex part. The method of claim 1,
The exterior portion, solids removal device, characterized in that the inlet portion is extended. The method of claim 1,
The vortex portion, solid removal device, characterized in that consisting of a screw fixed to the inner wall of the outer portion. The method of claim 1,
The inner tube portion, the solid material removing apparatus, characterized in that the outer wall has a smaller inner diameter than the outer portion so that a predetermined distance away from the inner wall of the outer portion. The method of claim 4, wherein
The inner pipe portion, the solid material removing apparatus, characterized in that the inner wall is formed extending from the inlet portion to the outlet portion. The method of claim 5, wherein
And the outlet portion is in close contact with the inner wall of the rear end of the outer portion. The method of claim 1,
The solids discharging unit is a solids removing device, characterized in that the outer wall of the outer portion is cut off in the lower portion of the inner tube. The method of claim 1,
And said solids discharging portion is formed between the inner wall of said exterior portion and the outer wall circumference of said inner tube portion. The method of claim 8,
The solids discharging unit is a solids removing device, characterized in that a plurality of spiral blades are formed between the inner wall of the outer portion and the outer wall of the inner tube portion to induce the discharge of solids.

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