KR100938511B1 - Manufactruring method of constructing materials like blocks from the gabage of foods - Google Patents

Abstract

PURPOSE: A method for producing a block mold product having food waste and quicklime is provided to effectively recycle resource. CONSTITUTION: A method for producing a block mold product having food waste and quicklime comprises: a step(100) of preparing clay comprising white clay or red clay; a step(110) of mixing food waste to obtain first mixture; a step(120) of mixing clay and first mixture to obtain second mixture; a step(130) of mixing and stirring second mixture; a step(140) of curing the second mixture and maturing in order for the second mixture to contain 20-25% of moisture content; a step(150) of pulverizing the second mixture; a step(160) of adding binder to the second mixture to obtain third mixture; a step(170) of molding the third mixture in a block form; a step(180) of cutting the mold; a step(190) of hardening and plasticizing the cut mold; and a step(210) of forming salt coating.

Description

MANUFACTRURING METHOD OF CONSTRUCTING MATERIALS LIKE BLOCKS FROM THE GABAGE OF FOODS}

The present invention relates to a method for producing a block molded article based on food waste and quicklime, and more particularly, to recycled plastic clay blocks, clay foot blocks, which are recycled by collecting, processing and treating food wastes discharged in various forms. The present invention relates to a block product that can be used as a raft block, an ecological restoration block, a gabion block, construction, civil engineering, exterior finishing materials, and a molding method thereof.

Food wastes discharged from homes, industries, and catering companies are vast and perishable wastes.

Most of the conventional methods for treating food waste are dehydration, drying, and fermentation. Various methods such as dehydration, drying, and fermentation can reduce the weight of food waste, and can be recycled as fertilizer by fermentation or mixing with other treatment agents. A treatment method has been devised and proposed.

Such conventional technologies include Korean Patent No. 0156010, Korean Patent No. 10-0610761 (Organic Fertilizer Manufacturing Apparatus), Korean Patent No. 10-0670104 (Method for Manufacturing Organic Fertilizer), and respective apparatuses and methods are proposed. have.

However, the conventional food waste treatment method requires a number of pre-treatment and post-treatment processes and processing processes for reuse, and focuses on the weight reduction of food waste and recycling as fertilizer.

In addition, in general, a large amount of food waste is generated in apartments and large businesses, and such food waste disposal has a problem of polluting soil or rivers by leachate during landfilling to general landfills, and permits individually. It is transported to the collected food processing company in the transportation method, and the collected food waste is separated to compost and feed, and the liquid content is treated by water treatment and ocean dumping.

In addition, sludge (sludge) generated in water purification plants, sewage treatment plants or incineration plants are also classified as waste, and are disposed of by landfilling through a similar collection process.

However, in order to collect and dispose of food waste in this way, a large collection transportation device, a collection device, and a collection facility must be provided, and the collected food waste can be processed into a solid or slime after processing. As part of it is used as feed and land reforming agent, and the mucus phase is processed through the designated water treatment plant transfer water purification or ocean dumping,

Excessive disposal costs are required in this process, and the treatment facilities must not affect the soil or environment of the neighboring areas, so pretreatment and after-care are very strict, and the waste of budget is very severe. The reality is that there are many problems and wastes in the practical application in the local government.

Conventionally, food waste is not collected and disposed of by itself, but some of it is used as feed, land improver, and lime treatment fertilizer for recycling from the environmental point of view. Marine dumping is unavoidable, and thus the environmental impact and economic loss are severe, and the volume of by-products generated continuously becomes a problem, and since 2013, the treaty has made it impossible to apply due to the realistic limitation of maritime dumping. to be.

In recent years, as one of various improvements, much attention has been paid to the use of waste stone powder as a brick production process, and in the prior art, mixing clay, silt and stone powder in a weight ratio of 4: 3: 3, Pulverizing the mixed raw material to a size of about 2 mm, containing about 25% of water in the pulverized raw material, and injecting and cutting the raw material containing moisture into a desired shape to form a semi-finished product; Drying the molded semi-finished product at a temperature of 110 to 130 ° C. for about 4 days, firing the dried semi-finished product at about 1250 ° C. for 18 to 22 hours, and cooling the fired semi-finished product for 7 to 9 hours. The clay brick production method using the containing stone powder has been proposed,

Another source technology suggests that 5 to 45 weight percent of waste silica fine powder with a silica content of more than 97% and particle size adjusted to 170 mesh, 55 to 95 weight percent clay, and 0 to 5 weight percent glass powder are mixed. The moisture content was adjusted to 17 to 20% and molded by vacuum extrusion molding, and the molded product was calcined for 24 to 36 hours at a temperature of 1,100 to 1,200 ° C in a state where the molded product was dried at 80 to 200 ° C for 36 to 48 hours, using waste silica fine powder. A method for preparing clay bricks has been proposed.

However, among the wastes as described above, the method of producing clay brick using waste stone powder and the clay brick are manufactured by using the binding force of clay and waste stone powder, and can be produced with relatively high content of waste stone powder. While there is an advantage to effective recycling,

Waste sludge from water treatment plants, sewage treatment plants and incinerators cannot be used, so it is difficult to apply to food wastes that have the most difficulty in processing.

According to the research of the present inventors, food waste can be processed into various kinds of recycled molded products, construction materials, and especially blocks by appropriate mixtures and treatment methods, and these blocks are clay blocks, clay foot blocks, lake blocks, ecological restoration It is also used as a block for gabions, and can be applied to other construction, civil engineering, and exterior finishing materials.

In particular, the building materials products using food wastes were able to smoothly process the food wastes themselves, and also by providing the building materials as by-products, it was possible to produce molded products such as cheap blocks.

The manufacturing method of the block molded article based on the food waste and quicklime of the present invention in consideration of the problems of the conventional food waste treatment method as described above, it is possible to produce a building material including blocks that can be used as civil engineering, building flooring, etc. In addition to the recycling of resources, it provides technology that has the characteristics of reducing the cost and environmental pollution caused by the waste sludge disposal.

The present invention has been made to improve the above problems of the conventional treatment method,

By stirring the food waste with quicklime to obtain a stabilized alkaline resultant mixture, and mixing the clay with the mixture, and mixing the binder with these mixtures, the clay and the waste are bonded and fixed by the binder, thereby extruding and firing,

Through the active use of waste, it is very economical because it is possible to reduce costs by increasing the recyclability of resources and to reduce logistics and disposal costs due to waste disposal.

By improving the durability and pore formation and strength of bricks by using clay and alkaline products and the compact structure of binders, sidewalk blocks, rafting blocks, and eyepieces for guiding various shapes and uses using waste resources It can be used as facility and building flooring material to obtain neutralizing soils and river purification function.

It is an object of the present invention to provide molded articles including blocks based on food waste having very environmentally friendly characteristics, since the environmentally harmful effects of these wastes are prevented through active use of various wastes.

The manufacturing method of the block molded article based on the food waste and quicklime of the present invention is an environmental problem due to the toxicity of existing concrete blocks, building materials, etc. The problem can be solved.

In addition, the manufacturing method of the block molded product based on the food waste and quicklime of the present invention relates to a calcined clay brick which effectively recycles the mixture resulting from the alkaline result obtained by stirring the food waste generated in daily life with quicklime,

More specifically, food waste generated at home or food wastes generated in large settlements are collected and lime and agitated without dumping the residues into the ocean (digestion: CaO + H2O → Ca (OH) 2 + 15.2 Kcal / 1Kg) CaO) removes odors from food waste, treats salt, heavy metals, wastewater, bacteria, etc., and then mixes the resultant alkaline mixture with clay and binder, pressurizes it, and then dry and heats it to burn, building bricks and sidewalks. It can be used as building materials such as block shore blocks or marine formwork.

In the manufacturing method of the block molded article based on the food waste and quicklime of the present invention;

Claims [1] A molded article comprising a block based on food waste such as clay block, clay footpath block, raft block, ecological restoration block, gabion block, construction, civil engineering, exterior finishing material, the molded article;

Mix and stir the alkaline and stabilized mixture and clay obtained by mixing and stirring food waste and quicklime, and the stirred and mixed mixture is hydrated and aged under reduced temperature and humidity, and then sequentially Grinding and kneading to form the particles, giving the cohesiveness and fixing property as a binder, extrusion, molding, shaping into a shape, and then fired to produce a molded article comprising a block as a final molded product based on food waste, characterized in that A molded article containing a block,

As a specific manufacturing method,

Clay preparation step for preparing clay of white clay or red clay,

Mixing 35-50% by weight of food waste to lime as an alkaline stabilized product obtained by mixing and stirring food waste and quicklime to obtain a primary mixture,

Preparing a secondary mixture by mixing any one selected from 95, 90, 85, and 80% by weight of the selected clay, the primary mixture resulting from the quicklime treatment with any one selected from 5, 10, 15, and 20% by weight;

Mixing the second mixture by stirring at 50 to 200 RPM for 2 to 3 hours using a stirrer,

Curing the stirred mixed secondary mixture in a aging room at room temperature for 2 to 10 days, and controlling the humidity to ripen the moisture content of the primary mixture to be 20 to 25%, and aging,

Obtaining by mixing and pulverizing the water-containing, mature secondary mixture in order to have a particle size of 3mm and a particle size of 1.5mm, a particle size of 0.7 ~ 0.8mm from the crushing step by step,

Adding a binder to the pulverized and kneaded secondary mixture and stirring to obtain a tertiary mixture,

A molding step of extruding the tertiary mixture, in which the cohesiveness and the adhesion are increased by being bonded by the binder, into a block shape, etc.,

Forming step of cutting the extruded molding to a certain size and shape,

It characterized in that it comprises a block based on food waste, characterized in that it comprises at least a firing step of curing by firing the molded product in a chamber of 900 ~ 1200 ℃ 24 to 48 hours.

The manufacturing method of the block molded article based on the food waste and quicklime of the present invention as described above can increase the recyclability of resources through active use of wastes, as well as reduce costs and reduce logistics and disposal costs due to waste disposal. It is very economical and improves the durability and strength of bricks by the compact structure of clay and waste and binder,

When used as a sidewalk block, raft block, berthing facility, building interior material, building flooring, etc. using waste resources, there is an environmentally-friendly effect because it prevents the adverse environmental effects of these wastes through active use of various wastes.

Hereinafter, the method of manufacturing a block molded article based on the food waste and quicklime of the present invention described above with reference to the accompanying drawings as follows.

1 shows a method for producing a block molded article based on food waste and quicklime of the present invention.

[Optimal basic example obtained by experiment]

The basic technique of the present invention is described in sequence for each treatment step and the specifics therein.

Looking at the process steps and the specific details of each step of the method for producing a molded article, in particular, a plastic clay brick containing blocks based on food waste according to the present invention,

(1) Clay Preparation Step for Preparing Clay of White Clay or Red Clay (100):

The clay preferably used in the present invention is capable of the selective use of red clay and white clay to determine the basic color of the brick to be manufactured. If necessary, pigments of various colors may be artificially added, which may be selected according to the use and demand of the end-use.

(2) mixing food waste with 35-50 wt% of the quicklime to obtain a primary mixture to obtain an alkalized and stabilized result obtained by mixing and stirring food waste and quicklime (110);

Here, conventionally, the food waste and the resultant obtained by the lime treatment have been commonly used as a lime treatment fertilizer such as land improver.

(3) mixing the selected clay and the primary mixture to produce a secondary mixture (120):

As a preferred embodiment of the mixing ratio, the weight ratio is 95, 90, 85, 80% by weight of clay and 5, 10, 15, 20% by weight of the corresponding lime-treated primary mixture, relative to the weight of clay. Good results were obtained.

(4) mixing step 130 of mixing the secondary mixture, which is a mixture of the clay and the primary mixture, by stirring at 50 to 200 RPM for about 2 to 3 hours using a stirrer;

(5) while stirring the secondary mixture in the aging room at room temperature for 2 to 10 days, the humidity of the primary mixture to adjust the humidity to 20 to 25% of the function and ripening step 140;

By giving a curing time of about 2 to 10 days in the above-mentioned secondary mixture in a room temperature at room temperature, the clay and the waste can be organically combined with each other, and the moisture content of the clay and the primary mixture is evenly influenced by each other. This results in a mixture with a water content of 20 to 25% overall.

By doing so, the moldability and cutting property in the subsequent process are excellent, and the molding and processing of the building material product including the block of the present invention is smoothed.

(6) kneading to sequentially grind the hydrated, mature secondary mixture in order to have a particle size of 3 mm, a particle size of 1.5 mm, and a particle size of 0.7 to 0.8 mm from a stepwise grinding device provided in the form of a grinding mill machine or the like. And obtaining 150 by grinding;

The aged secondary mixture is not only irregular in particle size of clay and primary mixture, but also contains excessively large particles, so that the secondary mixture is pulverized into mutual kneading and fine particles by a stepwise grinding device.

The exemplary milling apparatus described above typically pulverizes first to have a particle size of 2 to 3 mm, and then regrinds to crush secondly to have a particle size of 1.5 mm, which is again a size of 0.7 to 0.8 mm. Grinding to increase the mechanical strength of the bricks to increase the physical strength as well as excellent moldability in the molding machine.

Such a crushing process is performed by various crushing machines such as a crushing mill machine, which is pulverized to a suitable particle size while passing between rollers pressurized up and down, as well as mixing and kneading the clay and lime treatment products in each crushing process. Since it becomes a state that there is an effect that their mutual bonding force is further improved.

(7) adding a binder to the above-described secondary mixture and stirring to obtain a tertiary mixture (160);

The secondary mixture may be selected from a variety of types again and its binder may be mixed evenly by adding a binder (Binder) which is variable in accordance with the required strength.

Usually, an acrylic, urethane or epoxy binder may be used. The type of binder may be selectively used depending on the type and nature of the waste.

In addition, the content of the binder is preferably mixed at about 5 to 10% by weight based on the total weight of the mixture.

The role of the binder is to ensure that the heterogeneous physical properties of the clay and the primary mixture resulting from the lime treatment are excellently bonded to each other by the binder, and that the fine pores generated inside the secondary mixture by the binder are prevented. Since the filling increases the filling properties between the pores to maintain a dense connective structure has the effect of improving the durability and strength of the brick.

(8) a molding step 170 for extruding the tertiary mixture in which the cohesiveness and the adhesion are increased by being bonded by a binder into a block shape or the like;

The tertiary mixture, in which clay, waste and binder are mixed, is continuously extruded by an extruder having a constant extrusion form to produce a product as shown in FIG. 2, and the extrudate is cut to the size of the brick as needed. The final molded products, such as building materials such as blocks and bricks, are completed.

(9) a shaping step 180 of cutting the extruded molding into a predetermined size and shape;

 The process of shaping by extrusion and cutting is not different from the manufacturing process of a conventional brick or block, so a detailed description thereof will be omitted.

(10) firing step 190 is completed by curing the molded molding for 24 to 48 hours in the chamber again 900 ~ 1200 ℃;

The molded product, which is cut as described above, is reinforced by sintering for 24 to 48 hours in a chamber having an internal temperature of 900 to 1200 ° C., depending on the application and function used, sprinkling salt at 1200 ° C. to coat the coating 210. It can also be formed. The fired block forms a salt coated film on its surface.

FIG. 3 exemplarily shows the introduction into the chamber, the firing, and the outer appearance of the chamber in the firing step.

The reason for forming the film is to eliminate the phenomenon of flying slaked lime powder on the surface of the molded article exposed.

As described above, it is possible to obtain a building material including various types of blocks that can realize various effects and purposes by the method for producing a block molded product based on the food waste and quicklime of the present invention.

Exemplary forms of block molded article 200 produced by the manufacturing method of the present invention are shown in FIG.

If the product or method of the present invention replaces a concrete river and coastal revetment block, the molded product stabilized by food waste and lime treatment can be easily inhabited and adhered to by sea creatures or microorganisms in the sea. To become an eco-friendly product,

When used as a marine formwork, the light-weighted molded product can be adhered to the marine formwork and introduced into the ocean to induce rapid habitation of aquatic organisms, thereby maximizing its utility.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flowchart showing a method for producing a block molded article based on food waste and quicklime of the present invention.

Figure 2 is a photograph showing the molding process in the method for producing a block molded article based on food waste and quicklime of the present invention.

Figure 3 is a photograph showing the appearance of the chamber injecting, firing, firing in the manufacturing method of the block molded article based on food waste and quicklime of the present invention.

Figure 4 is a photograph showing various molded articles of the molded article by the manufacturing method of the block molded article based on the food waste and quicklime of the present invention.

* Description of the symbols used in the main parts of the drawings *

100; Preparatory process steps

110; Primary mixture formation process step

Claims (3)

delete A method for producing a block molded article based on food waste and quicklime, the method for producing the block molded article; Clay preparation step (100) for preparing clay of white clay or red clay: In order to obtain a stabilized result by alkalizing, mixing food waste at 35 to 50% by weight with respect to quicklime to obtain a primary mixture (110); Preparing a secondary mixture by mixing the clay with the primary mixture in a weight percent ratio of any one of 95: 5, 90:10, 85:15, and 80:20 (120): Mixing the second mixture by mixing and stirring the mixture at 50 to 200 RPM for 2 to 3 hours with a stirrer (130); Curing and mixing the secondary mixture in a aging room at room temperature for 2 to 10 days, and controlling the humidity to ripen the final moisture content of the secondary mixture to 20 to 25% (140); A kneading and pulverizing step of sequentially grinding the water-containing, mature secondary mixture into a stepwise grinding device so as to have a particle size of 3 mm and a particle size of 1.5 mm and a particle size of 0.7 to 0.8 mm; Adding a binder for binding to the pulverized and kneaded secondary mixture and stirring to obtain a tertiary mixture (160); A molding step of extruding the tertiary mixture bonded by the binding binder into a block shape; A shaping step 180 of cutting the extruded molding; A firing step 190 of curing the cut moldings in a chamber at 900 to 1200 ° C. for 24 to 48 hours to bake; Method of producing a block molded product based on the food waste and quicklime, characterized in that further comprising the step of forming a salt coating coating on the surface of the calcined molded article in the heating state of 1200 ℃ heating. delete

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