KR20080034228A - Soundproof building composition using water source sludge and its manufacturing method - Google Patents

Abstract

A noise-protecting composition for building using waterworks sludge is provided to realize easy drying characteristics, excellent resistance against rapid heating and cooling, pollution-free characteristics and high heat insulation effect. A noise-protecting composition for building using waterworks sludge comprises: 31.5 wt% of a base material containing 22 wt% of preliminarily processed waterworks sludge obtained by firing waterworks sludge at 800-850 deg.C for 3-5 hours, 18 wt% of clay, 36 wt% of terra alba, 14 wt% of pagodite and 10 wt% of dolomite; 2.3 wt% of plaster of Paris; 11.3 wt% of cement; 10.8 wt% of phosphoric acid; 43.05 wt% of water; 0.05 wt% of aluminum powder; 0.5 wt% of starch; and 0.5 wt% of titanium dioxide.

Description

Soundproof building composition using water source sludge and its manufacturing method

The present invention relates to a soundproof building composition using a water supply sludge and a method for manufacturing the same, and more specifically, to a primary processing material obtained by first firing a water supply sludge at 800 degrees and a chemical foaming method for forming a myriad of bubbles in the inside of the substrate. The present invention relates to a soundproof building composition using a source water sludge using a porous method of porosity in which an aluminum powder reacts with an acid or an alkali to generate hydrogen gas and forms numerous bubbles in the interior.

Products made by making pores by forming bubbles inside the material naturally or artificially have been developed for a long time for the purpose of insulation, light weight, sound insulation, insulation, and filtration.

Typical examples include insulating bricks, lightweight concrete products, porous glass, porous carbon materials, etc. The high-temperature generating part of the spacecraft, which is the state of the art, is attached as a porous silicate tile.

If the porous inorganic product is understood from the soundproofing material's point of view, the expansion of the surface texture due to the pores of various sizes mixed on the surface, the resistance to breakage due to rapid drying, rapid heating and quenching during the drying or firing of the product, Like cutting and processing fire-resistant insulation bricks with a saw, there is a possibility of the shape change of the fired products, the slip state and the wide range of choice of using the injection mold material such as wood, vinyl, styrofoam. Increasing the weight of the product itself, especially in large sound insulation products can be seen as an interesting field.

The production of such porous inorganic materials is mainly made artificially, and among them, a chemical foaming method using aluminum powder as a blowing agent is frequently used.

There are fine particles in the water source, which can produce finer particles than the fine particles.

Since the particles in the water are very fine particles, it is easy to reduce the weight and the reaction is easy to occur when the reaction occurs.

Korean Patent Registration No. 10-327944 describes a method of manufacturing artificial soil using a constant sludge and a method of manufacturing artificial soil fertilizer,

Publication No. 10-625172 discloses viscous soils containing ocher, sandy soils containing masato, paper sludge, purified water sludge, stone powder, expanded cement, sodium alginate, aggregates, cements, polyethylene resins, polystyrene resins, and polypropylene resins. It describes the manufacturing method of earth concrete and earth concrete blocks using an expansion agent or a repair agent to which any one or more resins selected from melamine resins and inert resins are applied.

Korean Laid-Open Patent Publication No. 1999-007639 describes a ceramic composition using solid waste composed of 75 parts by weight of solid waste, 15 to 45 parts by weight of fly ash, and 5 to 55 parts by weight of clay, and a method of manufacturing the same. ,

Japanese Patent Laid-Open Publication No. 2001-0008071 discloses clay bricks, beams and clay blocks for driveway, which are manufactured by heating and then stirring the purified water sludge with kaolin and clay, followed by drying, followed by heating. It is

In Korean Patent Laid-Open Publication Nos. 92-655 and 97-5872, a method of manufacturing ondol magnetic field compositions and building materials mainly based on elvan, mica and magnetic materials is disclosed.

In Korean Patent Publication No. 97-1067, the present invention relates to a glaze composition for treating a ceramic container for treating a surface of a ceramic material such as ceramics.

In Korean Patent Publication No. 97-10301, it relates to a method for producing far-infrared radiation-generating ceramics having strong far-infrared radiation characteristics including elvan.

In Korean Patent Publication No. 97-10301, it relates to a method for producing far-infrared radiation-generating ceramics having strong far-infrared radiation characteristics including elvan.

Korean Patent Publication No. 95-23626 discloses a technology relating to mortar composition comprising ganbanite and cement in 3.2: 1,

Korean Unexamined Patent Publication No. 93-19580 discloses a refined prefabricated thermal insulation stone panel incorporating cement in natural mineral minerals, mica or elvan, containing germanium minerals.

The prior art as described above is a problem that the shrinkage generated during rapid quenching during firing or cooling during the manufacturing process of building materials and the like, and because the raw material is expensive, it has not been put to practical use at present, the problem of no use in the soundproofing field This has been.

The present invention, in order to solve the problems described above, the applicant has been filed domestically registered patent No. 10-622394 (application number 10-2004-56950), and Patent Publication No. 10-2006-7720 ( Application No. 10-2004-56949), title of the invention; As a method of manufacturing a building material using purified water sludge, a composition of a building material using purified water sludge, and a method of manufacturing the same,

When the raw water sludge is first fired at 800 ° C, the organic material of the sludge burns out to obtain a primary processed material that has been contracted.Then, the raw material sludge, clay, dolomite, white clay, and porcelain are used to make ceramic material for 1100 ° C. By forming the pores produced by experimenting acidic and alkaline reaction using aluminum powder as blowing agent, it is easy to dry, strong resistance to rapid quenching and quenching, and its own material is light, so the sound insulation effect of sound is excellent. There is a shortage of insulation and not free from pollution problems, but the product manufactured by the present manufacturing technology has the expected effect of being pollution-free and heat-resistant to increase the insulation effect.

Therefore, the technical problem to be achieved by the present invention to provide a soundproof building composition using a water source sludge to increase the effects of sound insulation, moisture proof, heat dissipation, pollution-free, so that the problems of the polymer sound insulation material can be completely solved.

In order to achieve the above object, the present invention is 22% by weight primary primary process water sludge, 18% by weight clay, 36% by weight clay, 14 weight of feldspar, calcined water source sludge 3 ~ 5 hours at 800 ℃ ~ 850 ℃ temperature % Mixed with 10% by weight of dolomite,

31.5% by weight of the body, 2.3% by weight of plaster, 11.3% by weight of cement, 10.8% by weight of phosphoric acid, 43.05% by weight of water, 0.05% by weight of aluminum powder, 0.5% by weight of starch, 0.5% by weight of titanium dioxide,

After mixing and stirring the powdered mixture, firing at 1100 ° C. in a heating furnace, a soundproof building composition using a water source sludge produced at a total shrinkage of 8 to 10% and an apparent porosity of 50 to 52%, and a method of manufacturing the same will be.

The body of the present invention was a ceramic material possessed at 1100 ℃, acidic reaction foaming was used a phosphoric acid solution, and alkaline reaction foaming was used as caustic soda as a foaming accelerator. As other preparations, dispersants, bubble stabilizers, and the like were used.

The present invention sets the appropriate concentration of the slip slippery for foaming, derives the action of calcined gypsum and cement on the crystallization of slip slippery and its mixing ratio, and investigates the handling strength and plastic properties. and,

In acid-reaction foaming, the foaming phenomena according to the amount of phosphoric acid, the effect of titanium dioxide as a foaming accelerator, the effect of calcined gypsum and cement, the proper usage, drying, and firing materials were investigated.

In alkaline foaming reaction, the appropriate amount of caustic soda as a foaming accelerator and the solidification state of cement and cement, and the amount of whitening as a contributing agent for drying, plasticity and plastic strength were observed.

In addition, the present invention observed the formability, drying and firing conditions when using a cloth or styrofoam instead of gypsum as a mold for the condensation curing reaction of the porous material while preparing the prototype, and also examined the compatibility with the glaze.

When aluminum powder reacts with acid or alkali, hydrogen gas is generated to form bubbles and make the inside of the body porous. Therefore, it is important that the three components, powder, and granules are uniform and not oxidized. It is good that the specific surface area is big,

In addition to the aluminum powder, it is known to use a foaming accelerator such as caustic soda, a surfactant, and a bubble stabilizer in combination.

These other preparations are listed as follows.

The foaming agent used aluminum, and the foaming accelerator was mainly used caustic soda and sometimes caustic carry to compensate for the lack of alkali and promote foaming in the slip using aluminum.

The dispersant is intended to disperse each component in the slip, and may use a surfactant such as lignin-sulfonate such as an organic acid and a polymer neutralizer, but may not be used in the present invention. ,

Foam stabilizers used saponins, protective colloids, starch, etc. to stabilize bubbles in slips and to prevent and evenly distribute bubbles.

In addition, the crude agent is a thin slip with a large amount of water in the subsidiary material, so it has strength by the solidification reaction of cement rather than drying it to have strength. In this case, calcium oxide, its salts, Water glass or the like was used.

Hereinafter, the present invention will be described in detail with reference to Examples.

Example

First Process (Primary Machining Sludge Processing Process)

1 ton of sludge from the waterworks plant was put in rotary kiln, and calcined at 800 ℃ ~ 850 ℃ for 3 ~ 5 hours to prepare 80 ~ 500kg of primary processed purified sludge ash completely sintered water and organic matter. ,

Second Process (Manufacturing)

After mixing the primary process water sludge 22kg, clay 18kg, white clay 36kg, feldspar 14kg, dolomite 10kg and then crushed into a mill ball and passed through a 200mesh sieve, after preparing the residue to a size of less than 1%,

Third Process (Building Materials)

A powdery mixture was prepared by mixing 31.5 kg of the base material prepared in the second step, 2.3 kg of calcined gypsum passed through a 20 mesh sieve, 11.3 kg of cement passed through a 20 mesh sieve, 0.05 kg of aluminum powder, 0.5 kg of starch, and 0.5 kg of titanium dioxide. ,

After mixing 10.8 kg of phosphoric acid and 43.05 kg of water, the mixture of the powdery mixture was mixed and stirred, and then calcined at 1100 ° C. in a heating furnace, and the total shrinkage was 8-10%, and the apparent porosity was 50-52%. Building materials using sludge were prepared.

Experimental Example

Raw material;

The base material used in this experiment is ceramic material which is fired at 1100 ℃ by using the processed sludge which processed the primary sludge, and the combination ratio is as follows.

18% by weight of clay, 36% by weight of clay, 22% by weight of primary processed sludge, 14% by weight of feldspar, 10% by weight of dolomite, and the particle size of the body is less than 1% when passed through a 200mesh sieve.

Aluminum powder used as a blowing agent is a product of H-Non-ferrous powder company, which is used in paints, etc.As a dispersant, a dishwashing agent which is a surfactant and a starch stabilizer are starch, and calcined gypsum is a secondary product of M-chemical. Portland cement was used, and caustic soda and phosphate aqueous solutions were also commercially available products.

Production of specimen

The ground was dried and pulverized in brown and then passed through a 20mesh sieve, which was used as a powder.

The raw materials used in the experiments are divided into powder solids, liquids of water and phosphoric acid, and the mixing of them is based on the method of first mixing solids with liquids and liquids first and then putting a solid sample into the liquid sample. Soluble raw materials such as soda are first dissolved in water and used.

Aluminum powder, a blowing agent, is dispersed in water in a state where water and surfactant are well mixed,

The weight of the specimens was 50g for the total of three types of raw materials: base, calcined gypsum and cement, and other preparations such as foam accelerators were used as additives.

The combined solid samples are mixed well and then placed in a liquid sample, and the solid sample completely absorbs the water. The mixture is stirred and slipped into a 100 cc beaker and the foaming reaction is observed. After the sample was dried, a release agent was applied with a brush to facilitate separation of the specimen.

· Foaming temperature and drying

The temperature for the foaming reaction of the sample was well performed at room temperature in acidic foaming, and alkaline foaming was performed at a temperature of 60 to 80 ° C. to promote foaming, and the apparatus was a constant temperature dryer.

Drying of the specimen was taken out when it was partially dried while condensation hardening in a state where it could be separated from a container such as a beaker, and dried naturally.

Firing

The firing of the specimen was performed by using an electric furnace with the cantal line as the heating element, and the rising temperature curve is as follows.

When lime or Portland cement is added to the soil to coagulate the soil, it reacts with reactive clay minerals, which is called cement hardening.

When water is added to the cement and then kneaded, a hydration reaction occurs, and the slip mixture starts to solidify and solidify with time, and gradually has mechanical strength through a step of maintaining its shape.

The advantages of this product are light weight, sound absorption, heat insulation, easy processing and high fire resistance. Aluminum powder is used as the foaming agent of this product, and the reaction is as follows.

2AI + Ca (OH) ₂ + 2H₂O → CaAI₂O₄ + 3H₂ ↑

In addition, caustic soda is used to compensate for the lack of alkali and to promote foaming. The reaction is as follows.

2AI + 2NaOH + 2H₂O → 2NaAIO₂ + 3H₂ ↑

The chemical foamed porous body caused by the generation of hydrogen gas by the reaction of aluminum powder with acid or alkali can be expressed naturally by the pores mixed on the surface. It can be used in organic materials such as vinyl, and the porous material is easy to dry, resistant to rapid heat and quenching, and the weight of the product itself is light.

Therefore, this experiment was carried out by making the pores porous by acidic reaction and alkaline reaction, and as a result of product expansion, the expansion of foam selection and foaming reaction are well done at room temperature, and the pore size is mixed so that the surface texture is natural. The acid reaction foaming was good and its weight blending ratio is as follows.

31.5% by weight, 2.3% by weight gypsum, 11.3% by weight cement, 10.8% by weight phosphoric acid, 43.05% by weight water, 0.05% by weight aluminum powder, 0.5% by weight starch, 0.5% by weight titanium dioxide.

Experimental results of the present invention;

1) Since the slip is suitable for foaming, it is a dilute concentration that requires more water than the base, so it contains 30% of calcined gypsum and cement in the base, and it hardens after condensation. You can get it.

2) In acidic reaction foaming, foaming became active with increasing phosphoric acid (85% solution), and the strength after firing increased and the color became white. The compounding ratio of phosphoric acid suitable for firing at 1100 ° C. is suitably within 10% of the slip weight.

3) In the acid reaction foaming experiment, the addition of titanium dioxide to less than 1% facilitated the foaming reaction and at the same time the processing of various sizes.

4) In alkaline reaction foaming, caustic soda promoted the foaming reaction. The amount was about 0.5% of the slip weight, and it was easy to maintain the reaction temperature at 60 ~ 80 ℃ rather than room temperature.

5) Alkaline-reacted foaming material was very weak when fired at 1100 ℃, and the defect could be compensated by adding lead white as strength reinforcing material.

6) The total shrinkage of the fired porous soundproof material was 8 ~ 10%, and the apparent porosity was about 50 ~ 52%.

7) It was possible to make a mold of the desired shape and to make a mold in the mold, and to make a product with light weight and natural pores formed on the surface.

According to the present invention as described above, when the raw water sludge is first fired at 800 degrees, the organic material of the sludge burns out to obtain a primary processed material that has been contracted.

Processed sludge and clay, dolomite, white clay, and pottery are used to make porcelain material for 1100 ℃,

Forming countless pores in the porcelain base with processed sludge makes it easy to dry, has strong resistance to rapid heat and quenching, and its own material is light, resulting in excellent sound insulation effect. By solving the disadvantages that are not free from pollution problems, and furthermore, by achieving the expected effect of being pollution-free and heat-resistant and increasing the insulation effect,

It is possible to completely solve the problems of the conventional sound insulation for the polymer can increase the effects of sound insulation, moisture proof, heat dissipation, pollution-free.

In addition, by slipping the base material, the chemically-porous porous material generated by the generation of hydrogen gas by the reaction of aluminum powder and acid or alkali can naturally express the surface texture by the pores mixed in the surface. The material of the mold can be used for organic materials such as vinyl, and the porous material is effective in making large soundproof products because of its ease of drying, strong resistance to rapid heat and rapid cooling, and light weight of the product itself.

Claims (2)

In soundproof building composition using water source sludge, The primary mixed raw water sludge calcined water supply sludge at 800 ℃ ~ 850 ℃ temperature for 3 to 5 hours, 18% by weight of clay, 36% by weight of clay, 14% by weight of feldspar, 10% by weight of dolomite, 31.5% by weight, 2.3% by weight of gypsum, 11.3% by weight of cement, 10.8% by weight of phosphoric acid, 43.05% by weight of water, 0.05% by weight of aluminum powder, 0.5% by weight of starch, 0.5% by weight of titanium dioxide. Soundproof building composition using water source sludge. In the method of manufacturing a soundproof building composition using a water source sludge, First Process (Primary Machining Sludge Processing Process) 1 ton of sludge from a water treatment plant was put in a rotary kiln and calcined for 3 to 5 hours at a temperature of 800 ℃ ~ 850 ℃ to prepare 80 ~ 500kg of primary processed purified sludge completely calcined with water and organic matter. Second Process (Manufacturing) 22% by weight of the primary process sludge, 18% by weight of clay, 36% by weight of clay, 14% by weight of feldspar, 10% by weight of dolomite, and then pulverized with a mill ball to pass through a 200mesh sieve size of less than 1% Prepare your possession with Third Process (Building Materials) 31.5% by weight of the base material prepared in the second step, 2.3% by weight of plaster passed through a 20mesh sieve, 11.3% by weight of cement passed through a 20mesh sieve, 0.05% by weight of aluminum powder, 0.5% by weight of starch, 0.5% by weight of titanium dioxide To prepare a powdery mixture, After mixing 10.8% by weight of phosphoric acid and 43.05% by weight of water, and then mixing and stirring the powdered mixture, the total shrinkage is 8 to 10%, and the apparent porosity is 50, which is produced by firing at 1100 ° C. in a heating furnace. Manufacturing method of building materials using ~ 52% soundproof sludge.