KR102032939B1 - Eco-Friendly Recycle Foundations Soils Using Shipbuilding Industrial Byproducts And loess And Eco-Friendly Recycle Foundations Soils Method Thereof - Google Patents

Abstract

The slag used in the blasting process at the shipbuilding site is screened with a drum type sorter with less than 1cm of slag to store the moving belt in a certain moving space. A slag selection process of moving and selecting the moving belt;
A dust treatment step of collecting dust generated in the blasting process of the shipbuilding business site to screen metal materials having good purity, and heat-treating and removing the combustibles in the dust at high temperature to store them in silos;
A process sludge treatment step of collecting and drying the process sludge generated during the blasting process of the shipbuilding business site before the ship coating process;
Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;
Slag, dust, sludge, loess, obtained by the above process step, characterized in that the mixture of 80-90% by weight of slag, dust and sludge mixture 2-5% by weight, loess 8-15% ratio of environmentally friendly recycle shrinkage to be.

Description

Eco-Friendly Recycle Foundations Soils Using Shipbuilding Industrial Byproducts And loess And Eco-Friendly Recycle Foundations Soils Method Thereof }

The present invention relates to a method for manufacturing eco-friendly recycling shrinkage settlement earthquake materials using shipbuilding by-products and loess, and to eco-friendly recycling for shrinkage settlement prevention soils, and more specifically, an eco-friendly mixture of slag, dust and sludge collected at the shipbuilding site. The present invention relates to a method for manufacturing recycled sedimentation preventing sedimentation materials and environmentally friendly recycling sedimentation preventing sedimentation sedimentation, which relates to a stable and durable eco-friendly recycled aggregate without causing water pollution.

Surrounded by the sea on three sides, Korea has a long history of producing and exporting ships with the highest quality ships. Various materials are used for drying ships, such as wood, industrial plastics, and metal grids. The technology for recycling and processing by-products of ship manufacturing processes is being developed in parallel.

In addition, the law on the conservation of resources and the promotion of recycling, as well as the regulations to manage industrial waste by-products so as not to affect the environment, are urgent problems such as recycling and disposal of shipbuilding by-products and securing landfills.

In line with this trend, technologies for recycling waste materials from industrial and reconstruction sites, and various device technologies for sorting are being developed.

However, there is a demand for more eco-friendly recycling of by-products from the world-class shipbuilding business, but there is no efficient way.

Korea Patent 10-1499365 Korea Patent 10-1577023 Korea Patent 10-1648572 Korea Patent 10-1762405 Korea Patent 10-1760599

The present invention has been conceived to solve the above problems and needs, a method for producing an environment-friendly recycling shrinkage settlement soil material mixed with slag, dust, sludge collected in the shipbuilding business site and loess and environmentally friendly recycling shrinkage settlement soil material To provide.

As a means for achieving the above object,

The slag used in the blasting process at the shipbuilding business site is screened with a drum type sorter with less than 1cm of slag to store the moving belt in a certain moving space, and to store more than 1cm of metal and non-metallic materials remaining inside the drum sorter. A slag selection process of moving and selecting the moving belt;

A dust treatment step of collecting dust generated in the blasting process of the shipbuilding business site to screen metal materials having good purity, heat-removing the combustibles in the dust at a high temperature, and storing them in silos;

A process sludge treatment step of collecting and drying the process sludge generated during the blasting process of the shipbuilding business site before the ship coating process;

Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;

Mixing the slag, dust, sludge and ocher, which were processed in the process step, at a ratio of 80-90 wt% of slag, 2-5 wt% of dust and sludge mixture, and 8-15% of loess;

Includes an eco-friendly recycling shrinkage sediment prevention step for producing a soil material, characterized in that stored in a predetermined space so that the regeneration soil proceeded to the mixing process in a civil site.

The slag screening step includes screening by the screen net, magnetic screening and the like.

The dust treatment step includes a step of collecting dust before the wire coating process to sort metal material by magnetic force method and to remove impurities by applying heat.

The process sludge treatment step includes proceeding with the dust treatment step by removing the water of the process sludge.

The ocher treatment step comprises treating the loess with a powder of pulverized 70-140 mesh.

Mixing the slag, dust, sludge and loess in a predetermined ratio includes mixing 80-90 wt% of slag slag, 2-5 wt% of dust and sludge mixture, and 8-15% of loess.

Environmentally friendly recycling shrinkage settlement landfill made by means for achieving the above object,

The slag used in the blasting process at the shipbuilding business site is screened with a drum type sorter with less than 1cm of slag to store the moving belt in a certain moving space, and to store more than 1cm of metal and non-metallic materials remaining inside the drum sorter. A slag selection process of moving and selecting the moving belt;

A dust treatment step of collecting dust generated in the blasting process of the shipbuilding business site to screen metal materials having good purity, and heat-treating and removing the combustibles in the dust at high temperature to store them in silos;

A process sludge treatment step of collecting and drying the process sludge generated during the blasting process of the shipbuilding business site before the ship coating process;

Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;

Eco-friendly recycling shrinkage settlement prevention, characterized in that the slag, dust, sludge, ocher obtained in the process step, 80-90% by weight of slag slag, 2-5% by weight of dust and sludge mixture, 8-15% of loess Includes fill material.

The slag comprises a silicon oxide component comprising iron.

The eco-friendly recycled shrinkage prevention soil material mixed in the slag slag 80-90% by weight, dust and sludge mixture 2-5% by weight, 8-15% loess is the color of the slag by the loess discolored and has a yellow soil flavor Include.

According to the present invention as described above, by providing a method for making environmentally friendly recycling shrinkage settlement mixed with slag, dust, sludge generated in the shipbuilding industry site with loess, by recycling the waste by-products generated in the shipbuilding business site resources Savings, promoting recycling and eco-friendly recycled aggregates can be easily obtained.

In addition, it is possible to obtain an ecological environment that is stable to the environment, does not cause ground subsidence, and does not cause water pollution, by providing an eco-friendly recycled shrinkage prevention material that mixes slag, dust, and sludge generated in the shipbuilding industry with loess.

1 is a process chart showing a process for making environmentally friendly recycling shrinkage sediment prevention material mixed with slag, dust, sludge generated in the shipbuilding business site of the present invention with ocher.
Figure 2 is a photograph showing the slag completed the slag selection step of the present invention.
Figure 3 is a photograph showing the loess after the ocher treatment step of the present invention.
4 is a photograph showing a state in which two years have elapsed after mixing 90% by weight of slag, 2% to 5% by weight of dust and sludge mixture, and 5% by weight to 8% by weight of ocher, which is an experimental sample A of the present invention. .
FIG. 5 is a photograph showing a state in which two years have elapsed after mixing 80 wt% of slag, 5 wt% to 10 wt% of dust and sludge mixture, and 5 wt% to 10 wt% of ocher, which is an experimental sample B of the present invention. .
FIG. 6 is a photograph showing a state in which two years have elapsed after mixing 70% by weight of slag, 2% to 5% by weight of dust and sludge mixture, and 25% to 28% by weight of ocher, which is an experimental sample C of the present invention. .
7 is a photograph showing a state of two years after mixing 60% by weight of slag, 5% to 10% by weight of dust and sludge mixture, and 30% to 35% by weight of ocher, which is an experimental sample D of the present invention. .
8 is an experimental result table showing the evaluation results of the experimental samples A, B, C, D of the present invention.
9 is a recent waste environmental test report of the company that provided the test samples A, B, C, D samples of the present invention.
FIG. 10 is an environmental test report of a sample made two years ago when test samples A, B, C, and D used in the present invention were made.

With respect to the embodiments of the present invention disclosed in the text, specific structural to functional descriptions are merely illustrated for the purpose of describing the embodiments of the present invention, and the embodiments of the present invention may be embodied in various forms. It should not be construed as limited to the embodiments described in.

As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for the components.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between. Other expressions describing the relationship between components, such as "between" and "immediately between," or "neighboring to," and "directly neighboring to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof that has been described, and that one or more of them is present. It is to be understood that it does not exclude in advance the possibility of the presence or addition of other features or numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, with reference to the accompanying drawings, it will be described a preferred embodiment of the present invention. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions of the same elements are omitted.

1 is a process chart showing a process for making environmentally friendly recycling shrinkage sediment prevention material mixed with slag, dust, sludge generated in the shipbuilding business site of the present invention with ocher.

According to Yosai's Law on Saving and Recycling of Resources, by-products and recyclable wastes generated at workplaces other than designated wastes generated at workplaces may be used for the construction of civil engineering works, landfill materials, road equipment, and landfill facilities. Recycling is mandatory for recycling.

Referring to Figure 1, the slag, dust, process sludge, etc., which are recyclable by-products generated in the blasting process of the shipbuilding plant is environmentally friendly by minerals, active enzymes, etc. contained in the loess components when mixed with loess after a specific treatment process It can be made of recycled sedimentary material.

Industrial by-product residue or slag extracted from iron ore by smelting iron from iron ore in order to complete the appearance of ships and to remove oxides or other debris from ship's steel plate before the wire coating process. The process of removing the scale, rust, coating film, etc. from the surface of an iron plate by compressing and spraying the name slag with high pressure air is called blasting.

The slag, dust, and process sludge generated are collected in several tens of tons depending on the size of the ship and the spinal cord, and are not contaminated with heavy metals or hazardous chemicals. After the waste environment evaluation, it is stored and sent to the intermediate waste treatment site for recycling of landfills, road equipment, and landfill facilities.

The present invention reprocesses slag, dust, and process sludge generated at shipyards and mixes it with yellow soil to make eco-friendly recycled shrinkage settlement soil most economically. It provides an eco-friendly shrinkage sedimentation prevention material that can be used as.

Slag selection process is carried out. (S100)

The slag of shipbuilding works is mainly made of silica sand of slag used in iron plate engraving, iron plate rust powder and iron plate cleaning blasting process, and iron and silica sand are the main members. This may include wood chips and vinyl from work or storage.

In the process of washing iron plate through the injection process with high pressure air in the blasting process, the size of slag is mainly selected, so the size of less than 1cm is the mainstream. The pieces are mixed and selected through the sorting process, and the metals are used as recycled scrap metal, and the silica sand and iron powder, which are the main components of the slag, can be reused as slag.

In the sorting method, a slag is put into a drum-type sorting machine with a screen net, and the slag is less than 1 cm. The selected primary slag is selected as the slag as shown in the photo of Figure 2 is a main component of silicon and mixed iron.

The slag of 1cm or more is moved by the conveyor belt and passed through the magnetic separator to be classified and classified into metal and non-metallic components. Selected metal pieces are used as scrap metal, and nonmetallic elements are incinerated or landfilled depending on the ingredients.

Process the dust (S200).

The dust of shipbuilding works is the iron oxide (rust) powder from the iron plate, which is generated in the blasting process in which the slag is mixed with high pressure air to clean the iron plate. Among the silicon components, the dust remaining after being selected as a slag is the mainstream. The amount is usually less than 10% of the amount of slag. The collected dust may be sorted into fine powder through a screening process, and then, if necessary, treated in a kiln at a high temperature of 500 degrees or more to remove flammable impurities.

In addition, if there are many metals with good purity, the metals can be extracted from the magnetic sorter and used with scrap metal. Selected dust is small and fine powder form and stored in silo to use.

Process the process sludge (S300).

Process sludge at shipyards is a type of waste in which dust generated during the blasting process mentioned above absorbs a lot of water due to natural phenomena (snow and rain) during operation. Therefore, the process sludge is dried to high temperature and then subjected to the dust treatment step through the screening process.

Prepare the ocher. (S400)

Ocher is a soil formed by wind on the surface of temperate or desert areas. Yellow soil, which is used for building buildings, conserving and improving soils, and soil engineering, has emerged as an environmentally friendly material with various chemical effects, including minerals and activating enzymes. In particular, ocher in southern regions of Korea is used in various materials because of its excellent ingredients and efficacy.

Providing recycled soil by mixing ocher with by-products from the shipyard in the present invention, to make a new recycled sedimentation prevention sedimentary material by utilizing the above-mentioned loess properties exhibiting excellent efficacy in the conservation and improvement of the soil.

The loess is treated with a powder of pulverized 70-140 mesh to make as shown in FIG. 3. As mentioned above, ocher has various effects such as minerals and activating enzymes, and has high deodorization effect by far-infrared rays generated from ocher, eliminating the odor of slag and dust sludge, and good color of ocher. Silver bleaching material for preventing shrinkage settlement that can feel aesthetic by discoloring the black rejection of slag or dust process sludge.

Slag dust process sludge mix ocher. (S500)

The slag and dust process sludge from each process step is put into the mixer mixing hopper and mechanically mixed.

Hereinafter, the present invention will be described in more detail with reference to the following examples.

Sample A: 90% by weight of slag, 2% by weight to 5% by weight of dust and sludge mixture, 5% by weight to 8% by weight of ocher (Figure 4 is a photograph of Sample A soil after 2 years)

Sample B: 80% by weight of slag, 5% to 10% by weight of dust and sludge mixture, 5% to 10% by weight of ocher. (FIG. 5 is a photograph of sample B soil after 2 years.)

Sample C: 70% by weight of slag, 2% to 5% by weight of dust and sludge mixture, 25% to 28% by weight of ocher (Figure 6 is a photograph after 2 years of sample C soil)

Sample D: 60% by weight of slag, 5 to 10% by weight of dust and sludge mixture, 30 to 35% by weight of ocher. (Figure 7 is a photograph after two years of sample D soil)

Samples mixed with different mixing ratios of the above sample groups were evaluated by the Environmental Evaluation Institute two years ago for harmful substances evaluation (FIG. 10).

9 is a current waste environmental evaluation report of the company received a waste request at the time of the experiment.

All environmental assessment reports show that there is no problem after passing the standard.

8 is a result table showing the experimental evaluation results of the experimental samples A, B, C, D of the present invention.

Referring to FIG. 8, the mixed materials passed all environmental evaluations when the samples of the experimental samples A, B, C, and D were generated. After two years, the environmental evaluation also shows no leachate or odor, and the company that provided the sample also passed the environmental evaluation.

The tested product is intended to cover the construction, civil engineering works, auxiliary materials, road substrates and landfill facilities. Therefore, the shrinkage settling degree is the most sensitive property, and the shrinkage settling state is measured and compared with other materials.

The shrinkage sedimentation property is characterized by high iron content due to the nature of the slag component, and the porosity decreases as the slag, dust, and loess are combined so that different porosities are combined (such as millet in soybeans). ), The samples, A, B, C, and D produced soils did not shrink more than ordinary landfills, resulting in a very good surface of the produced soil.

Taking advantage of these characteristics, it can be used as a reclaimed aggregate for cover of large landfills or landfills that are good for landfilling in Gaepul.

On the economic side, the costs of slag, dust and sludge are paid according to the amount of waste from the waste supplier, so the higher the share of slag, dust and sludge, the better the economy becomes. However, loess should be purchased as raw materials for companies made of intermediate recycled aggregates, so the higher the share of loess, the lower. As a result of comparing the economics with various factors, it was found that if the portion of the yellow soil rose to more than 20% (occurred in the sample C-producing soil), the economic efficiency was remarkably low and commercial effectiveness was not found.

As the ratio of slag increases, economic efficiency improves, but the deterioration of aesthetic odor, etc. emerges, and the slag should be 80% by weight or more, but when 90% or more by weight, the reduction point in aesthetic smell.

The dust and sludge components were produced at a low rate, so 2% to 5% by weight were suitable for realistic synthesis rates.

Other aesthetics and scents were highly deodorized due to the minerals, activating enzymes, and far-infrared rays generated from loess.

For landfills filled with recycled aggregates, aesthetics and aromas cannot be considered. However, if the use is allowed to be changed and used on the surface of the surface, it may be considered and the currently permitted use under the law should be reclaimed.

As a result of considering all the above cases, the present invention is an environment-friendly recycling shrinkage settlement prevention method landfill material manufacturing method using the by-product material and loess, and eco-friendly recycling shrinkage settlement prevention soil material made by the manufacturing method, used in the blasting process in shipbuilding The slag is used to sort the slag less than 1cm from the drum type sorter with the screen net to store the moving belt in the moving space, and to move the sorting material of 1cm or more remaining in the drum type sorter and the non-metallic material to the moving belt. Screening step;

A dust treatment step of collecting dust generated in the blasting process at the shipbuilding business site and selecting a high purity metal material, and heat-treating and removing the combustible material in the dust at a high temperature to store in a silo;

A process sludge treatment step of collecting, drying and sorting the process sludge generated in the shipbuilding blasting process before the ship coating process;

Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;

The most economical and environmentally sound results are obtained when the slag, dust, sludge and ocher obtained in the above process steps are mixed at a ratio of 80-90 wt% of slag, 2-5 wt% of dust and sludge mixture, and 8-15% of loess. Could.

As described above, the present invention has been described with reference to a preferred embodiment of the present invention, but those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be understood that modifications and changes can be made.

In the above-described embodiment, various forms of slag, dust, sludge and loess are not limited to 80-90 wt% of slag, 2-5 wt% of dust and sludge mixture, and 8-15% of loess. For example, it can be used in various fields as long as it is allowed to produce soil using the same.

The present invention has described a method for manufacturing eco-friendly recycle shrinkage-preventing sedimentary soils using by-product materials and loess, and eco-friendly recycled shrinkage-preventing sedimentary soils made by the manufacturing method, but functional soils having various functions by applying recycling technology or soil I can make it.

Claims (8)

The slag used in the blasting process at the shipbuilding business site is sorted and stored in the fixed space by moving belt with less than 1cm of slag selected from the drum type sorter with screen net. A slag selection process of moving and selecting the moving belt;
A dust treatment step of collecting dust generated in the blasting process at the shipbuilding business site to sort the metal material with a magnet, and removing the combustible material in the dust by heat treatment at least 500 degrees and storing it in a silo;
A process sludge treatment step of collecting and drying the process sludge generated in the shipbuilding blasting process before the ship coating process;
Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;
Mixing the slag, dust, sludge and ocher, which were processed in the process step, at a ratio of 80-90 wt% of slag, 2-5 wt% of dust and sludge mixture, and 8-15% of loess;
Eco-friendly recycling shrinkage settlement landfill material manufacturing method characterized in that for storing the regeneration shrinkage-preventive landfill material progressed by the mixing process in a predetermined space so as to be successful in the civil engineering site. The method of claim 1, wherein the slag screening step of selecting the metal material and the non-metal material is characterized by using a magnetic separator. The method of claim 1, wherein the sorting of the metal material from the dust uses a magnetic separator. The method of claim 1, wherein the process sludge is dried, and the metal combustible material is removed and the dust treatment step is performed. The slag used in the blasting process at the shipbuilding business site is screened with a drum type sorter with less than 1cm of slag, and the moving belt is stored in a certain moving space. A slag selection process of moving and selecting the moving belt;
A dust treatment step of collecting dust generated in the blasting process at the shipbuilding business site, selecting the metal material with a magnet, removing the combustible material in the dust by heat treatment at least 500 degrees, and storing it in a silo;
A process sludge treatment step of collecting and drying the process sludge generated during the blasting process of the shipbuilding business site before the ship coating process;
Ocher treatment step of treating the loess with a powder of pulverized 70-140 mesh;
Slag, dust, sludge, loess, obtained by the above process step, characterized in that the mixture of 80-90% by weight of slag, dust and sludge mixture 2-5% by weight, loess 8-15% ratio of environmentally friendly recycle shrinkage . delete The soil material according to claim 5, wherein the loess includes minerals, activating enzymes, and materials generating far infrared rays. According to claim 5, wherein the eco-friendly recycled soil mixed in the proportion of 80-90% by weight of the slag, 2-5% by weight of the dust and sludge mixture, 8-15% of the loess, the natural color of the slag is bleached by ocher Eco-friendly recycled shrinkage settlement sediment material.

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