KR101656859B1

KR101656859B1 - Modularized hydro-cyclone

Info

Publication number: KR101656859B1
Application number: KR1020160016151A
Authority: KR
Inventors: 김경련; 최진영; 원은지
Original assignee: 한국해양과학기술원
Priority date: 2016-02-12
Filing date: 2016-02-12
Publication date: 2016-09-12

Abstract

The present invention relates to a cone-shaped body having an inlet pipe through which contaminated soil / sediment flows, a lower end of which is narrowed in diameter, and a fatigue resistant coating layer is applied to the inner periphery; A plurality of lower discharge units, each of which discharges contaminated soil / sediment having a predetermined particle size or more selected from the body, the lower discharge unit being attached to the lower part of the body so that the fatigue resistance coating layer is coated on the inner periphery; And a plurality of upper discharge units each of which discharges contaminated soil / sediments of less than a predetermined particle size selected from the body, and which is removably removable from the upper portion of the body, a fatigue resistance coating layer is coated on the inner circumference, To a modular cyclone.

Description

Modularized hydro-cyclone < RTI ID = 0.0 >

The present invention relates to a modular cyclone capable of easily classifying polluted soil / sediment whose classification efficiency is determined by various factors by different diameters of upper discharge pipe and lower discharge pipe, .

With the development of industry, pollution of soil / sediment by various wastewater discharged from factories etc. becomes serious. For example, coasts are becoming more polluted due to pollutants accumulated in the past and pollutants generated from natural ecosystems. Marine polluted sediments containing these pollutants can be one of the root causes of water pollution.

Various techniques have been proposed to purify marine polluted sediments by collecting (dredging) marine polluted sediments. Among these technologies, cyclones are proposed to classify contaminated soils / sediments into particles.

As an example of the prior art for cyclone, Korean Patent Registration No. 1207131 discloses an inflow pipe through which contaminated soil is transported, a body formed so that contaminated soil flowing through the inflow pipe connected to the inflow pipe is sorted based on a predetermined particle size, An outlet pipe connected to the body for discharging the contaminated soil less than the predetermined particle diameter and a discharge pipe connected to the body for discharging the selected contaminated soil having the predetermined particle size or more.

However, in the case of the above-mentioned technology, the contaminated soil classification is influenced not only by the mechanical characteristics such as the cyclone structure but also by various factors such as the particle size distribution and viscosity of the soil / sediment, , The classification of the contaminated soil is classified by using a cyclone having a fixed diameter of the lower discharge pipe. If the classification efficiency does not reach the designed value, the cyclone itself having different diameters of the upper and lower discharge pipes is replaced It is troublesome to classify it and there is an uneconomical problem in terms of time.

Korea Patent No. 1207131

The present invention provides a modular cyclone capable of easily adjusting the diameter of the upper and lower discharge pipes through which the classified soil / sediment is discharged, thereby doubling the classification efficiency of the contaminated soil / sediment.

To achieve the above object, a modular cyclone according to the present invention comprises: a cone-shaped body having an inlet pipe through which contaminated soil / sediment flows, a lower end of which is narrowed in diameter, and a fatigue- A plurality of lower discharge units, each of which discharges contaminated soil / sediment having a predetermined particle size or more selected from the body, the lower discharge unit being attached to the lower part of the body so that the fatigue resistance coating layer is coated on the inner periphery; And a plurality of upper discharge units each of which discharges contaminated soil / sediments of less than a predetermined particle size selected from the body, and which is removably removable from the upper portion of the body, a fatigue resistance coating layer is coated on the inner circumference, .

In one embodiment, the upper discharge unit includes a blocking plate for blocking the upper end of the opened body, and an upper discharge pipe configured to be exposed through the upper and lower ends of the blocking plate through the blocking plate. And the inner diameters are different from each other.

In one embodiment, the inner discharge port of the lower discharge unit is configured to be in contact with the inner peripheral edge of the body, and the plurality of lower discharge units have different inner diameters of the lower discharge pipes.

For example, the body may include an upper body having a straight pipe shape and a lower body having a cone shape whose diameter is narrowed downward from a lower portion of the upper body. The upper body and the lower body may be detachable .

For example, the vibration isolating pad is disposed between the upper body and the lower body and between the upper body and the upper exhaust unit.

In one example, the vibration isolating pad disposed between the upper body and the lower body includes a ring portion facing a shape of a lower end of the upper body and an upper end of the lower body, a ring portion projecting inward from a periphery of the ring portion, Wherein the vortex forming end is constituted by an attachment portion attached to the periphery of the ring portion and an extension portion projecting downward integrally from the attachment portion and spaced apart from the periphery of the lower body. .

As an example, the fatigue-resistance coating layer may comprise 10 to 40 parts by weight of a cerissite powder, 1 to 5 parts by weight of a mixture of aluminum hydroxide and dinonylnaphthylsulfonic acid ammonium salt, 1 to 5 parts by weight of manganese oxide, 1 to 5 parts by weight of calcium nitrite, 1 to 3 parts by weight of hydroxyethyl cellulose, 1 to 3 parts by weight of manganese sulfide, and 0.5 to 3 parts by weight of cellulose acetate.

As an example, the inner periphery to be coated before application of the fatigue-resistant coating layer may include 40 to 50 parts by weight of sulfuric acid, 3 to 6 parts by weight of ascorbic acid, 1 to 3 parts by weight of dinonylnaphthylsulfonic acid ammonium salt, Is used for cleaning.

The modular cyclone of the present invention is advantageous in that it is possible to easily adjust the inner diameter of the discharge pipe through which the classified particles are discharged in the contaminated soil / sediment particle classification in which various factors act as variables, thereby improving the particle classification efficiency.

Further, the modular cyclone of the present invention has an advantage that the classification efficiency can be doubled by preventing the vibration caused by contaminated soil / sediment introduced by modularization or the like from being transmitted upward and downward.

Further, the modular cyclone of the present invention is advantageous in that the coating layer is coated on the inner periphery, thereby increasing resistance to fatigue caused by continuous cycling and salting from marine contaminated soil and the like, thereby doubling durability.

1 is a side sectional view showing a basic example of the present invention.
2 is a side sectional view showing an embodiment of the present invention.
3 is a side sectional view showing another embodiment of the present invention.
4 is a side sectional view showing still another embodiment of the present invention.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

As shown in FIG. 1, the modular cyclone 100 according to the present invention includes a cone-shaped body 110 having an inlet pipe 113 through which contaminant soil / sediment flows, and a lower end having a reduced diameter; A plurality of lower discharge units (120), each of which discharges contaminated soil / sediment having a selected particle size or more selected from the body (110) and is detachable under the body (110) A plurality of upper discharge units 130 having different diameters from the upper discharge pipe 131 are provided to discharge contaminant soils / sediments less than a predetermined particle size selected from the body 110, ; And

In other words, the present invention can be applied to the contaminated soil / sediment particle classification because the classification of the contaminated soil / sediment is influenced by various factors such as injection pressure, diameter and height, mechanical properties such as cone inclination, as well as particle size distribution and viscosity of soil / In the case of applying the diameter of the lower discharge pipe to the sediment, the classification efficiency can not be expected. Therefore, it is also troublesome to replace the cyclone itself according to the diameter of the upper discharge pipe and the lower discharge pipe. It is possible to easily change the diameters of the upper and lower discharge pipes, which are important factors that can be controlled, so that the particle sorting efficiency of the contaminated soil / sediment can be improved.

The body 110 is formed with an inflow pipe 113 through which contaminated soil / sediment flows, and a lower end of the inflow pipe 113 has a cone shape having a reduced diameter. The body 110 is formed in such a manner that the contaminated soil / sediment introduced into the interior of the body 110 through the inlet pipe 113 is separated on a predetermined particle size basis, and typically comprises a cylindrical upper portion and a conical lower portion. At this time, the surfaces of the cylindrical upper portion and the lower portion of the cone contact surface may be formed in an angular shape or may be integrally formed in a smooth curved shape.

Particularly, in the present invention, the body 110 includes an upper body 111 having a straight pipe shape and a lower body 112 having a cone shape, the diameter of which is lowered from the lower portion of the upper body 111, And the upper body 111 and the lower body 112 can be detachably attached to each other.

The reason why the upper body 111 and the lower body 112 are configured to be detachable in constituting the body 110 is that the lower body 112 of the cone shape is constituted by a plurality of tilted lower bodies 112 so as to increase the classification efficiency The vibration isolating pad 140 (142) to be described later is placed on the upper body 111 and the lower body 112 so that the inflow tube 113 can be easily removed from the upper body 111 and the lower body 112, To prevent the vibration of the contaminated soil / sediment flowing through the upper body 111 from being transmitted to the lower body 112 to increase the centrifugal force in the lower body 112, thereby improving the particle classification efficiency.

In the case where the body 110 is integrally formed as in the prior art, the vibrations are generated inside the body 110, and such vibration hinders the generation of centrifugal force in the contaminated soil / sediment formed with eddy current, As described above, according to the present invention, the body 110 is modularized into the upper body 111 and the lower body 112, and the vibration blocking pad 142 is disposed between the upper body 111 and the lower body 112, .

The upper discharge unit 130 discharges contaminated soil / sediments of less than a predetermined particle size selected from the body 110 so that the upper discharge unit 131 can be attached to and detached from the upper part of the body 110, And so on. That is, the upper discharge unit 130 is composed of a plurality of units, and the upper discharge unit 130 is selectively attached to and detached from the upper end of the upper body 111 by varying the diameter of the upper discharge pipe 131.

1 shows an example in which two upper discharge units 130 are selectively attached to and detached from the upper body 111. The diameter D1 of the upper discharge pipe 131 of the upper discharge unit 130 and the diameter The upper discharge pipe 131 of the upper discharge pipe 131 is different from the diameter D2 of the upper discharge pipe 131 so that the user can selectively discharge the upper discharge unit 130 according to the diameter of the upper discharge pipe 131, It is possible to attach and detach it to and from the container 111 to obtain an appropriate classification efficiency.

The upper discharge unit 130 includes a blocking plate 132 blocking the upper end of the opened upper body 111 and an upper discharge pipe 132 extending through the blocking plate 132 and exposed to the upper and lower ends of the blocking plate 132. [ 131).

The lower discharge unit 120 discharges contaminated soil / sediments having a predetermined particle size or more selected from the body 110 and is detachable from the lower part of the lower body 112, And so on. That is, the lower discharge unit 120 is composed of a plurality of units, and the lower discharge unit 120 is selectively attached to and detached from the lower end of the lower body 112 at different diameters of the lower discharge pipe 121.

1 shows an example in which two lower discharge units 120 are selectively attached to and detached from a lower body 112. The diameter d1 of the lower discharge tube 121 of one lower discharge unit 120 and the diameter d1 of the other lower discharge unit 120, The user can select the lower discharge unit 120 selectively in accordance with the diameter of the lower discharge pipe 121 in classifying the contaminated soil / It is possible to attach and detach it to and from the discharge port 112 to obtain a proper classification efficiency.

2, the lower discharge unit 120 should be constructed such that the inner periphery of the lower discharge pipe 121 is connected to the inner periphery of the lower body 112, respectively. That is, the classification should be made easy by ensuring continuity. For this purpose, FIG. 2 shows an example of two lower discharge units 120. In the case of the lower discharge unit 120 having a lower diameter d1 of the lower discharge pipe 121, the inner diameter of the lower discharge pipe 121 is larger than the inner diameter of the cone portion 121-2 having an upper end and the straight pipe portion 121- 1) so that the continuity of the inner diameter of the lower body 112 and the inner diameter of the lower discharge pipe 121 is ensured.

In the case of the lower discharge unit 120 having a larger diameter d2 of the lower discharge pipe 121, only the straight pipe portion 121-1 is formed in the inner diameter thereof, and the diameter of the lower discharge pipe 121 is increased, 112) is ensured. The inner diameter of the lower discharge pipe 121 is adjusted by controlling the diameter and length of the cone portion 121-2 and the straight pipe portion 121-1 so that the inner diameter of the lower discharge pipe 121 A plurality of lower discharge units 120 having various inner diameters can be constituted.

The upper discharge unit 130, the upper body 111, the lower body 112, and the lower discharge unit 120 are configured to be removable from each other. As shown in the drawings, (Not shown), and can be configured to be detachable by a bolt coupling (not shown).

Particularly, in the present invention, the fatigue resistance coating layer C is applied to the inner peripheral edge of the upper discharge unit 130, the body 110 and the lower discharge unit 120, This is because the contaminated soil / sediment introduced from the inner periphery of the upper discharge unit 130, the body 110 and the lower discharge unit 120 is continuously cycled by the centrifugal force, And it is intended to improve the durability by controlling problems such as exposure to salty water in the case of marine polluted soil and the like.

In the present invention, as the fatigue-resistant coating layer (C), 10 to 40 parts by weight of cericite powder, 1 to 5 parts by weight of a mixture of aluminum hydroxide and dinonylnaphthylsulfonic acid ammonium salt, 1 to 5 parts by weight of manganese oxide 1 to 5 parts by weight of calcium nitrite, 1 to 3 parts by weight of hydroxyethyl cellulose, 1 to 3 parts by weight of manganese sulfide, and 0.5 to 3 parts by weight of cellulose acetate.

A polyacrylic resin is used as a base material. This is a water-soluble binder having a high self-elasticity to improve impact resistance, and is intended to prevent water condensation from being added to the coating layer (C). When dew condensation occurs, foreign matter of condensation is deposited on the inner periphery, and such dwelling protrusion causes friction with contaminated soil / sediment which is cyclic, thereby increasing fatigue and causing deterioration of centrifugal force.

The sericite is intended to reinforce the strength of the coating layer (C) as a filler, and in particular, to prevent the occurrence of condensation of the coating layer (C) as a hydrophilic mineral.

The mixture of aluminum hydroxide and dinonylnaphtylsulfonic acid ammonium salt mixture is preferably mixed at 60:40 to 80:20 by weight ratio of aluminum hydroxide and dinonylnaphthylsulfonic acid ammonium salt.

The aluminum hydroxide absorbs heat generated during the curing process and decomposes into aluminum trioxide and water. That is, it is possible to control the temperature crack by reducing the hardening heat. However, aluminum hydroxide absorbs heat and is decomposed into aluminum trioxide and water, so that the water thus produced may have a problem that the strength of the paste may be lowered.

Therefore, in the present invention, dinonylnaphthylsulfonate ammonium is added in addition to aluminum hydroxide. Particularly, Ca 2 - eluted with water forms an amorphous ASH 6 coating with poor permeability, which hinders the progress of the curing reaction. Interference with the curing reaction may act as a cause of strength deterioration. The above-mentioned dinonylnaphthylsulfonate ammonium (Ca2 < - >) from reacting, and at the same time, the water itself is removed through water absorption by the dinonylnaphthylsulfonic acid ammonium salt. That is, the addition of the aluminum hydroxide and the dinonylnaphthylsulfonic acid ammonium salt mixture improves the crack resistance without deteriorating the strength and durability.

In addition, cellulose acetate is added to the coating layer (C), and the cellulose acetate is added as a hydrophilizing agent to control the generation of scale by the oil component contained in the condensation by hydrophilization.

The above-mentioned calcium nitrite is intended to improve the anti-corrosive property and prevent the deposition of scale due to corrosion on the inner periphery of the above structures. And has a function of protecting against corrosion without affecting the strength of the coating layer (C).

This small nitrite ion (NO2-) of the calcium nitrite reacts with the iron ion (Fe ++) eluted from iron (Fe) to prevent the formation of ferric hydroxide [Fe (OH) 3] The compound Fe2O3 is produced. The resulting Fe2O3 forms a film at the corrosion point formed on the iron surface and closes it, thereby preventing corrosion of iron.

The cellulose acetate is for improving the hydrophilicity of the coating layer (C). Even if hydrophilic property is imparted by adding cellulose acetate to the polymer, the scale due to the foreign substance contained in the condensation can not be controlled. Generally, colloidal materials such as EPS, protein and the like are weakly negatively charged due to the selective adsorption of anions, especially hydroxide ions, in the medium, so that manganese oxide is further added to the coating layer (C). The manganese oxide exhibits a negative charge at a pH of 6 to 8 to generate sludge and repulsive force, so that the generation of scale due to sludge can be controlled.

The hydroxyethyl cellulose is added as a water-soluble polymer and imparts a coating function through a polymer emulsion of an aqueous component. That is, the coating is formed on the surface in the state that the hydroxyethyl cellulose is dispersed in water to form a polymer film, thereby doubling the rustproofing property by improving the waterproof property.

The manganese sulfide (MnS) is intended to prevent the inflow of carbonic acid, moisture and the like into the gap by generating voids on the coating surface of the coaching layer (C). This surface pore is formed by the reaction of the alkaline component of the paste and the metal component of the inner periphery to generate hydrogen gas, and when the hydrogen solubility is supersaturated, hydrogen is released to the outside of the paste structure during the hardening process and pores and cracks are formed on the inner peripheral surface .

The surface voids generated in this way deteriorate the surface roughness and not only lower the centrifugal force but also act as a point of deterioration of the anticorrosive function in the future. In the present invention, the manganese sulfide is added so that the manganese sulfide fixes the hydrogen, and the hydrogen is fixed by the manganese sulfide, thereby controlling the generation of microvoids on the surface.

The present invention further provides an embodiment for cleaning the inner periphery of the upper discharge unit 130, the body 110 and the lower discharge unit 120 before the coating layer C is applied.

That is, before the fatigue-resistant coating layer (C) is applied, the inner periphery to be coated is coated with 40 to 50 parts by weight of sulfuric acid, 3 to 6 parts by weight of ascorbic acid, 1 to 3 parts by weight of dinonylnaphtylsulfonic acid ammonium salt, Solution to be cleaned. This is to improve the adhesion of the inner periphery to the coating layer (C) and to improve the smoothness of the coating layer (C), thereby preventing the centrifugal force from lowering due to the decrease in smoothness.

A small amount of metal components such as silicon, iron, and copper are mixed and present in the inner peripheral edge of the upper discharge unit 130, the body 110, and the lower discharge unit 120, and the surface treatment . In general, since 3 to 20% sodium hydroxide is generally used for etching, the small amount of metal components such as silicon and iron is not dissolved in the alkali aqueous solution and remains on the surface of the material in a state of being protruded by the alkali aqueous solution, It acts as a factor for lowering the adhesion and smoothness.

In order to remove such protruding foreign matter, a concentrated aqueous solution of nitric acid has been conventionally used, and a mixed aqueous solution is added by adding hydrofluoric acid to remove foreign substances such as silicon components and metal components which are not dissolved in the high concentration nitric acid aqueous solution. However, there is a problem in that a large amount of nitric acid (NOx) gas is discharged by the use of nitric acid, the hydrofluoric acid gas is discharged by the use of hydrofluoric acid, and nitric acid nitrogen of high concentration occurs in the wastewater, there was.

Therefore, in the present invention, as a treatment liquid for removing foreign matters remaining on the surface in the process of surface treatment of the inner circumference, 40 to 50 parts by weight of sulfuric acid, 3 to 6 parts by weight of ascorbic acid, 1 to 3 parts by weight of dinonylnaphthylsulfonic acid ammonium salt And the remaining part is a water treatment liquid.

When the amount of the treatment liquid is more than 50 parts by weight, it tends to be etched to the base material component, which is undesirable. When the amount is less than 40 parts by weight, the foreign matter removal efficiency is insufficient, .

In addition, ascorbic acid and dinonylnaphthylsulfonic acid ammonium salts are further added to the above-mentioned range in the treatment liquid.

When treated with a strong acid such as sulfuric acid, the surface becomes positively charged when the pH of the cleaning solution is lower than the PZC of the metal oxide such as iron oxide or manganese oxide. When the pH is lower, the charge amount is increased. As the pH of the treatment solution is lowered, the eluted anions are not dissolved and re-adsorbed to the residual iron oxide, manganese oxide, and the like, in the various anions eluted by the acid.

In addition, when a treatment solution of strong acid is used, the solubility of metal oxides such as iron oxide and manganese oxide is increased, but the remaining metal oxides such as iron oxide and manganese oxide that do not dissolve are formed as the pH of the washing solution is low and act as a very strong adsorbent . And the anions eluted therefrom are strongly adsorbed to metal oxides such as iron oxide and manganese oxide, resulting in deterioration of the foreign matter removal efficiency.

Accordingly, in the present invention, the pH is lowered by treatment with sulfuric acid to remove foreign substances, and addition of the ascorbic acid prevents the eluted anions from being oxidized, thereby controlling the reduction of foreign matter removal efficiency by re-adsorption.

In addition, in the present invention, dinonylnaphthylsulfonic acid ammonium salt is further included so that the treatment liquid contains the ascorbic acid. The reason why dinonylnaphthylsulfonic acid ammonium salt is further included in this way is to prevent oxidation of the ions eluted by the ascorbic acid, and at the same time to prevent adsorption by water absorption by dinonylnaphthylsulfonic acid ammonium salt, And to control the generation of re-adsorbed material that is not also treated by the acid.

Meanwhile, as described above, the upper body 111 communicating with the inflow pipe 113 is vortexed in the contaminated soil / sediment introduced therein, and vibrates in the upper body 111. In order to eliminate the factor that hinders the centrifugal force, the vibration is applied between the upper body 111 and the lower body 112 and between the upper body 111 and the lower body 112, The vibration isolating pads 140 (141, 142) are disposed between the upper body 111 and the upper discharge unit 130, respectively.

The vibration isolating pad 142 is disposed between the upper body 111 and the lower body 112 so that the vibration generated in the upper body 111 is prevented from being transmitted to the lower body 112, ) To improve the classification efficiency by not impairing the centrifugal force on the contaminated soil / sediment formed vortex.

The vibration isolating pad 140 may be made of various materials such as rubber to absorb the vibration generated in the upper body 111 by using an elastic material.

In the present invention, as shown in FIG. 4, an embodiment for further improving the classification efficiency is shown.

The vibration isolating pad 142 of the present embodiment disposed between the upper body 111 and the lower body 112 has a ring portion opposed to the lower end of the upper body 111 and the upper end of the lower body 112 And a plurality of vortex forming steps 142-2 projecting inward from the periphery of the ring part 142-1 and having an inclined gradient in a predetermined direction, And an attachment portion 142-21 protruding downward integrally from the attachment portion 142-21 and spaced apart from the periphery of the lower body 112 (142-22).

4, the ring portion 142-1 of the vibration blocking pad 142 is formed in a circular ring shape having a height so as to face the lower end of the upper body 111 and the upper end of the lower body 112 And the vortex forming end 142-2 is formed of a plurality of protrusions protruding from the inner periphery of the ring portion 151 and having an inclined gradient in a predetermined direction. The reason why the vortex forming stage 142-2 is configured as described above is that the contaminated soil / sediment formed in the upper body 111 by the vortex is deteriorated to some extent by the vortex so that the intergranular separation is performed, / Sediment is struck by the vortex forming stage 142-2 to further multiply the intergranular separation, and the plurality of vortex forming stages 142-2 are formed with a constant slope so that the vortex of the contaminated soil / So as to be introduced into the lower body 112.

Accordingly, the contaminated soil / sediment having a smaller diameter due to the shape of the cone in the lower body 112 and having a larger centrifugal force and a larger particle-to-particle separation due to the eddy- The separation of the large particles and the fine particles becomes easier, and the classification efficiency is further doubled in the upper discharge unit 130 and the lower discharge unit 120.

Also, in this embodiment, the ring portion 142-1 and the vortex forming end 142-2 are integrally formed on the vibration blocking pad 142, and the ring portion 142-1 is formed by the ring portion 142-1, Vibration generated by the contaminated soil / sediment striking the swirling stage 142-2 while blocking the vibration of the upper body 111 and the lower body 112 from being transmitted to the lower body 112, ) From being transmitted.

Particularly, in this embodiment, the vortex forming end 142-2 protrudes downward integrally from the attachment portion 142-21 attached to the peripheral edge of the ring portion 142-1 and the attachment portion 142-21 And an extended portion 142-22 configured to be spaced apart from the peripheral edge of the lower body 112. The reason for this configuration is that the extended portion 142-22 is not attached to the attachment portion 142-21 in the downward direction, Is to extend the length of the vortex forming stage 142-2 so as to double the function of centrifugal force on the contaminated soil / sediment, and the unattached extension 142-22 (the lower body 112, The outer edge of the vortex forming end 142-2 is longer than the outer end of the vortex forming end 142-2.

As a result, the vortex forming stage 142-2 having such a structure serves to maximize the centrifugal force generation efficiency by controlling the flow rate deceleration while improving the function as a guide for generating centrifugal force.

The user classifies the contaminated soil / sediment using the modular cyclone 10 as described above. The method of classifying the contaminated soil / sediment particles using the modular cyclone 10 includes various factors The upper and lower discharge units 130 and 120 are replaced when the classifying efficiency of the design value is not expressed while classifying the contaminated soil / sediment to each contaminated soil / sediment whose classification efficiency is determined by the classification unit The classification is performed while the diameters of the upper discharge pipe 131 and the lower discharge pipe 121 are different from each other, so that the optimum classifying of the particles is facilitated.

100: Invention 110: Body
120: upper discharge unit 130: lower discharge unit
140: vibration stop pad

Claims

A cone shaped body having an inflow pipe into which contaminated soil / sediment flows, a lower end of which is narrowed in diameter, and a fatigue resistant coating layer is applied to the inner periphery;
A plurality of lower discharge units, each of which discharges contaminated soil / sediment having a predetermined particle size or more selected from the body, the lower discharge unit being attached to the lower part of the body so that the fatigue resistance coating layer is coated on the inner periphery; And
And a plurality of upper discharge units each of which discharges contaminated soil / sediments of less than a predetermined particle size selected from the body, and which is removably removable from the upper portion of the body, a fatigue resistance coating layer is coated on the inner circumference, In addition,
The fatigue-
10 to 40 parts by weight of a cericite powder, 1 to 5 parts by weight of a mixture of aluminum hydroxide and dinonylnaphthylsulfonic acid ammonium salt, 1 to 5 parts by weight of manganese oxide, 1 to 5 parts by weight of calcium nitrite, 1 to 3 parts by weight of hydroxyethyl cellulose, 1 to 3 parts by weight of manganese sulfide, and 0.5 to 3 parts by weight of cellulose acetate.

The method according to claim 1,
Wherein the upper discharge unit comprises a blocking plate for blocking the upper end of the opened body and an upper discharge pipe configured to be exposed through upper and lower ends of the blocking plate through the blocking plate, And a modular cyclone.

The method according to claim 1,
Wherein the lower discharge unit is configured such that an inner circumference of the lower discharge pipe is in communication with an inner circumference of the body, and a plurality of lower discharge units have different inner diameters of the lower discharge pipes.

The method according to claim 1,
The body may include an upper body having a straight pipe shape and a lower body having a cone shape whose diameter is narrowed downward from a lower portion of the upper body and the upper body and the lower body may be detachable Modular cyclone with.

5. The method of claim 4,
And a vibration blocking pad is disposed between the upper body and the lower body and between the upper body and the upper exhaust unit.

6. The method of claim 5,
The vibration blocking pad disposed between the upper body and the lower body includes:
And a plurality of vortex forming steps protruding inward from the inner periphery of the ring portion and having an inclination gradient in a predetermined direction, wherein the vortex forming end is formed in the ring portion And an extension part integrally projecting downward from the attachment part and spaced apart from a peripheral edge of the lower body.

delete

The method according to claim 1,
The inner periphery to be coated before application of the fatigue-resistant coating layer may be formed by using 40 to 50 parts by weight of sulfuric acid, 3 to 6 parts by weight of ascorbic acid, 1 to 3 parts by weight of ammonium salt of dinonylnaphtylsulfonic acid, Wherein the cleaning is carried out using a modular cyclone.