KR102439167B1 - Combustion improving agent with clinker softening component and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a combustion improver having a clinker softening component, which lowers the hardness of clinker grown in a combustion chamber, thereby preventing accidents caused by falling objects, and a method for producing the same,
A solubilizer, a clinker inhibitor for inducing complete combustion and generating a clinker inhibitory effect, a stabilizer for preventing the decomposition of oxygen-containing substances and improving the penetration ability of chemicals at the interface of incinerated materials to activate the combustion reaction, and penetration into the fuel In the combustion improving agent comprising an oxygen supply agent for increasing the combustion rate and combustion efficiency by releasing oxygen when reacting with heat,
The dissolving agent uses at least one aqueous solution selected from a silicon compound, sodium hydroxide (NaOH), and potassium hydroxide (KOH), and 6 parts by weight or less of the dissolving agent is mixed in 50 to 90 parts by weight of water,
The clinker inhibitor uses a substitute material that does not contain Na ₂ B ₄ classified as a toxic substance, but Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O) ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) At least one selected from among, but using 2 to 20 parts by weight, and ,
The stabilizer includes Ethylene Glycol (C ₂ H ₆ O ₂ ), Propane-1,2-diol (C ₃ H ₈ O ₂ ), Glycerol (C ₃ H ₈ O ₃ ), Ethylamine (C ₂ H ₅ NH ₂ ) , Diethylamine (C ₄ H ₁₁ N), Triethylamine (C ₆ H ₁₅ N) 2-Aminoethanol (C ₂ H ₇ NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) At least one type is used, but 5 to 10 parts by weight are used,
Hydrogen Peroxide (H ₂ O ₂ ) is used as the oxygen supplying agent, and 3 to 20 parts by weight is used.

Description

Combustion improving agent with clinker softening component and manufacturing method thereof

The present invention relates to a combustion improver having a clinker softening component, which lowers the hardness of clinker grown in a combustion chamber, thereby preventing accidents caused by falling objects, and a method for producing the same,

Use at least one aqueous solution selected from among silicon compounds, sodium hydroxide (NaOH) and potassium hydroxide (KOH) as a dissolving agent, and use an alternative material that does not contain Na ₂ B ₄ classified as a toxic substance as a clinker inhibitor, but Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using at least one selected from among,
The silica component of the solubilizer suppresses the generation of clinker and reduces its hardness, while Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), etc. Combustion improving agent having a clinker softening component and method for manufacturing the same, which can be used as a clinker inhibitor to weaken clinker bonding force when incinerated material is converted to clinker, thereby enabling workers to prevent accidents due to clinker falling during incinerator maintenance is about

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For stable combustion from the prior art, various means for improving combustion efficiency in a combustion furnace that burns various fossil fuels including various wastes have been studied. Among these various means, a combustion improver that promotes complete combustion in a furnace through catalysis will be a representative example. For complete combustion, 3T, that is, sufficient temperature, combustion time, and mixing or turbulence must be satisfied.

However, in actual incinerators, the required combustion time is different depending on the type, moisture content, and state of the waste, and the size of turbulence in the combustion furnace is different due to the shape and operation method of the facility and the formation of clinker, so that complete combustion in most incinerators is not possible. It is a very difficult situation.

In fact, sufficient temperature and combustion time are variables that can be artificially controlled when operating an incinerator, but the degree of mixing is a factor of the facility, and since it depends on the design and construction of the plant, it is almost impossible to increase or decrease during operation.

Therefore, in order to improve the complete combustion efficiency in the field, it was the only way to find and apply a method to properly control the combustion time and combustion temperature. In order to properly control such combustion time and combustion temperature, it is necessary to accumulate professional knowledge of incinerators, characteristics of waste and fossil fuels, and sufficient know-how for field systems. In the absence of the company, it is operated entirely dependent on experience.

Due to this, the continuous operation days of combustion chambers and boilers did not exceed 20 days in most sites, and clinker had grown and had to be reorganized after operation stopped. In addition, if the amount of incineration is increased, the generation of flue gas is promoted, which further increases the burden on the operation of the downstream flue gas treatment facility.

Therefore, various methods have been proposed to solve the above problems, for example, in Korean Patent Registration No. 10-0485193 (Patent Document 1), "Removal of scale and clinker and prevention of generation, effective combustion for reducing air pollutants A composition containing 20 to 45 parts by weight of borax, 10 to 25 parts by weight of hydrogen peroxide, 20 to 40 parts by weight of triethanolamine, 5 to 15 parts by weight of zinc oxide (ZnO), and 1 to 8 parts by weight of manganese dioxide under the name of "improving agent" It discloses a "combustion improving agent that prevents crank and scale, which is composed by mixing 100 to 300 parts by weight of water in 100 parts by weight." Korean Patent Publication No. 2006-0081654 (Patent Document 2) promotes combustion of fuel and In order to not only improve thermal efficiency by increasing heat transfer by removing impurities, but also to reduce the emission of harmful exhaust gases, "8-40 parts by weight of hydrogen peroxide, 8-40 parts by weight of an amine stabilizer, 10 parts by weight of borax An additive composition for fuel comprising -40 parts by weight, 16-40 parts by weight of sodium hydroxide, and the balance water."

In addition, Korean Patent Laid-Open Publication No. 2011-0111840 (Patent Document 3) relates to a method for manufacturing a fuel additive, "Sodium hydroxide of 11 to 13% by weight, borax of 27 to 31% by weight, 12 to 16% by weight of Preparing a first aqueous solution containing hydrogen peroxide, 19 to 21% by weight of triethanolamine, 1-3% by weight of potassium sulfate, and 20 to 23% by weight of water; Mixing potassium carbonate with water and stirring to obtain an aqueous solution of potassium carbonate making; mixing hydrogen peroxide with the potassium carbonate aqueous solution, but mixing the hydrogen peroxide while controlling the temperature to be 50° C. or less; triethanolamine heated to a temperature of 75 to 80° C. in the potassium carbonate aqueous solution mixed with hydrogen peroxide preparing a second aqueous solution by mixing; and a method for preparing a fuel additive comprising mixing the second aqueous solution with the first aqueous solution in a ratio of about 10 to 20 wt%.

However, in the invention of Patent Document 1, the generation of soot and slag can be suppressed to some extent due to the use of triethanolamine and metal oxide as a stabilizer, but there is still a problem that the clink is firmly fixed to the furnace wall after combustion, Patent Document 2 uses a large amount of highly corrosive sodium hydroxide and amine-based stabilizers, so there is a problem that nitrogen oxide is generated during combustion and is easily frozen even in spring and autumn weather, and furthermore, it dissolves by breaking the bond of borax. In order to do this, triethanolamine must be added under strong alkali conditions, but this process is very complicated and inefficient because the reaction time is long.

Although the invention of Patent Document 3 can improve combustion efficiency to reduce pollutants and reduce the generation of clinker to some extent, the invention of Patent Document 3 also has the same problems as in Patent Document 2, and furthermore, the manufacturing process is complicated. There was a disadvantage in that productivity was lowered.

Therefore, in order to solve this problem, the present applicant induces complete combustion within a short time, reduces the concentration of combustion flue gas and improves the antacid ability, suppresses clinker growth in the combustion furnace, and dramatically improves the convenience of operation of the furnace, and also As a liquid combustion improver, a combustion improver with a specific composition including propylene glycol has been proposed and applied for a patent in order to avoid the possibility of freezing and to prevent the generation of nitrogen oxides.

In the process of incinerating fuel such as waste in the combustor, materials that have not been completely combusted adhere to the inside wall of the incinerator and harden. When it grows, the incinerator is shut down and maintenance is performed.

In this process, the clinker generated in the incinerator cools, and the bond between the clinker is weakened during thermal expansion and contraction.

In particular, in the prior art using an aqueous solution of sodium hydroxide or potassium hydroxide as a dissolving agent, since the hardness of the clinker is still large, the clinker falls off prematurely during incineration or maintenance of the incinerator, and there is a risk of being injured by falling objects.

In addition, in the prior art, there was a problem that a large amount of sulfur oxides were also generated, and borax (Na ₂ B ₄ O ₇ ·10H ₂ O) was used as a clinker inhibitor, but Na ₂ B ₄ is classified as a toxic substance, so that workers can There is a risk of causing air pollution, and due to this risk, the amount of use of the combustion improver is limited, there is a problem that the effect of reducing the clinker density is suppressed, and the generation of soot and slag is not sufficiently suppressed, so the composition of ultra-fine particles in combustion materials There was this growing problem.

Accordingly, the present inventors recognize the problems to be solved in the above-described prior art, and add a silica component to the solubilizer to suppress clinker formation and reduce clinker hardness, while borax (Na ₂ B ₄ ) as a clinker inhibitor O ₇ 10H ₂ O) is replaced with a substance that does not contain Na ₂ B ₄ classified as a toxic substance, but Potassium Pentaborate (KB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ), etc., as a clinker inhibitor weakens the clinker binding force when the incinerated product is converted to clinker, so that the operator can prevent accidents due to clinker falling during maintenance of the incinerator.

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Patent Document 1: Korean Patent Registration No. 10-0485193 Patent Document 2: Korean Patent Publication No. 2006-0081654 Patent Document 3: Korean Patent Publication No. 2011-0111840

The present invention has been made in consideration of the technical problems in the prior art, and the main object of the present invention is to induce complete combustion within a short time, reduce the concentration of combustion exhaust gas and improve the antacid ability and suppress the growth of clinker in the combustion furnace. And while dramatically improving the convenience of combustion furnace operation, adding a silica component to the solubilizer to suppress clinker formation and reduce clinker hardness. , Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ) , Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using at least one selected from among the clinker, the clinker binding force is weakened when the incinerated material is converted to clinker, so the operator can prevent accidents due to clinker falling during incinerator maintenance. is to prevent
On the other hand, since borax, which has been used as a clinker inhibitor in a conventional combustion improving agent, is classified as a toxic substance, there is a risk that workers may get sick or cause air pollution, and there is a problem in that the effect of reducing the density of clinker is suppressed,
In the present invention, as a clinker inhibitor of the combustion improving agent, Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using at least one selected from among, it is another object to prevent the discharge of pollutants.

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The combustion improver composition of the present invention for achieving the above object;

A solubilizer, a clinker inhibitor for inducing complete combustion and generating a clinker inhibitory effect, a stabilizer for preventing the decomposition of oxygen-containing substances and improving the penetration ability of chemicals at the interface of incinerated materials to activate the combustion reaction, and penetration into the fuel In the combustion improving agent comprising an oxygen supply agent for increasing the combustion rate and combustion efficiency by releasing oxygen when reacting with heat,

The dissolving agent uses at least one aqueous solution selected from silicon compounds, sodium hydroxide (NaOH), and potassium hydroxide (KOH), and 1 to 6 parts by weight of the dissolving agent is mixed in 50 to 90 parts by weight of water,

The clinker inhibitor uses a substitute material that does not contain Na ₂ B ₄ classified as a toxic substance, but Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O) ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) At least one selected from among, but using 2 to 20 parts by weight, and ,

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The stabilizer includes Ethylene Glycol (C ₂ H ₆ O ₂ ), Propane-1,2-diol (C ₃ H ₈ O ₂ ), Glycerol (C ₃ H ₈ O ₃ ), Ethylamine (C ₂ H ₅ NH ₂ ) , Diethylamine (C ₄ H ₁₁ N), Triethylamine (C ₆ H ₁₅ N) 2-Aminoethanol (C ₂ H ₇ NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) At least one type is used, but 5 to 10 parts by weight are used,

Hydrogen Peroxide (H ₂ O ₂ ) is used as the oxygen supplying agent, and 3 to 20 parts by weight is used.

On the other hand, in addition to the oxygen supply agent, Sodium Hexametaphosphate ((NaPO ₃ ) ₆ ), Copper Dinitrate (Cu(NO ₃ ) ₂ ), Potassium Permanganate to oxidize residual components of hydrogen peroxide after the reaction and to supply oxygen to the combustor during combustion. (KMnO ₄ ), Potassium Citrate (C ₆ H ₅ K ₃ O ₇ ) At least one selected from the group consisting of additionally used, 3 to 15 parts by weight may be used.

In addition, the method for producing the combustion improver according to the present invention;

To a method for producing a combustion improver for inhibiting clinker growth in a combustion chamber,

Mixing the solubilizer with water, using at least one selected from the group consisting of a silicon compound, sodium hydroxide (NaOH), and potassium hydroxide (KOH) as the solubilizer, and adding 1 to 6 parts by weight of the solubilizer to 50 to 90 parts by weight of water a first step of dissolving;
A step of dissolving a clinker inhibitor, an alternative substance that does not contain Na ₂ B ₄ classified as a toxic substance, in the mixed solution prepared in the first step, and does not contain Na ₂ B ₄ classified as a toxic substance as the clinker inhibitor Substitutes are used, but Potassium Pentaborate(KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate(K ₂ B ₄ 0 ₇ ), Calcium Tetraborate(CaB ₄ O ₇ ), Sodium Pentaborate(NaB ₅ O ₈ ), Sodium Hexaborate(Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) A second step of dissolving 2 to 20 parts by weight using at least one selected from the group consisting of,

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Ethylene Glycol (C ₂ H ₆ O ₂ ), Propane-1,2-diol (C ₃ H) as a stabilizer to prevent the decomposition of oxygen-containing substances and improve the penetration ability of chemicals at the interface of incinerated materials to activate the combustion reaction. ₈ O ₂ ), Glycerol (C ₃ H ₈ O ₃ ), Ethylamine (C ₂ H ₅ NH ₂ ), Diethylamine (C ₄ H ₁₁ N), Triethylamine (C ₆ H ₁₅ N) 2-Aminoethanol (C ₂ H ₇ ) NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) A third step of adding 5 to 10 parts by weight to the mixed solution of the third step using at least one selected from the group consisting of,

Hydrogen Peroxide (H ₂ O ₂ ) is used as an oxygen supply agent for increasing the combustion rate and combustion efficiency by releasing oxygen when the mixed solution prepared in the third step penetrates into the fuel and reacts with heat, and the third step and a fourth step of adding 3 to 20 parts by weight to the mixed solution.

Aeration and stirring are required in each step, and after the fourth step, aeration of 1m3/m to 60m3/m and agitation of 80RPM or more are performed depending on the size of the blender, and the chemical is cooled to room temperature through cooling using a cooler. and should be stabilized.

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In addition, between the second step and the third step, in order to oxidize the residual component of hydrogen peroxide after the reaction and to supply oxygen in the combustor during combustion, Sodium Hexametaphosphate ((NaPO ₃ ) ₆ ), Copper Dinitrate (Cu(NO ₃ ) ) ₂ ), Potassium Permanganate (KMnO ₄ ), Potassium Citrate (C ₆ H ₅ K ₃ O ₇ ) Using at least one selected from among, adding 3 to 15 parts by weight to the mixed solution of the second step will be inserted may be

The method for producing a combustion improver having a clinker softening component of the present invention, which is configured as described above,
Inducing complete combustion in a short time, reducing the concentration of combustion flue gas and improving the antacid ability, suppressing clinker growth in the furnace, and dramatically improving the convenience of furnace operation. To reduce the hardness of clinker, use a substitute material that does not contain Na2B4 classified as a toxic substance as a clinker inhibitor, but Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using at least one selected from the group consisting of clinker As the clinker bonding force is weakened when converted into a
Borax, which has been used as a clinker inhibitor in a conventional combustion improver, is classified as a toxic substance, so there is a risk that workers may get sick or cause air pollution, and there is a problem that the reduction effect of clinker density is suppressed,
In the present invention, as a clinker inhibitor of the combustion improver, Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using one or more selected from among, there is an effect of preventing the discharge of pollutants.

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Hereinafter, the present invention will be described in more detail by way of preferred embodiments. However, it goes without saying that the scope of the present invention is not limited thereto.

In the present specification, the present embodiment is provided so that the disclosure of the present invention is complete, and is provided to completely inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, the scope of the present invention is only It is only defined by the claims.

Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been specifically described to avoid obscuring the present invention.

The terms used herein are for the purpose of describing the embodiments and are in no way intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. In addition, elements and operations referred to as 'include (or include)' do not exclude the presence or addition of one or more other elements and operations.

The combustion improver according to a preferred embodiment of the present invention, but is not limited thereto, increases the combustion rate and combustion temperature of fossil fuels including waste to improve combustion efficiency, suppress the formation of clinker, and also produce clinker and The present invention relates to a combustion improver composition and a method for manufacturing the same, which facilitate the desorption of scale and control combustion exhaust gas.

In particular, the present invention is a combustion improver that lowers the activation energy and maximizes oxygen supply to promote complete combustion.

For example, in order to rapidly combust waste and fossil fuel, the reaction rate must be increased so that it can be rapidly combined with oxygen.

In addition, the reaction rate of the fuel is expressed as in Equation 1 below.

In Equation 1, v is the reaction rate, k is the rate constant, a and b are the number of moles of each compound, and m and n are the reaction order.

As can be seen from Equation 1 showing the combustion reaction rate, since the reaction rate v is proportional to the concentration of oxygen (O ₂ ), if the concentration of oxygen is increased, the combustion rate also increases.

In order to increase the oxygen concentration in the combustion chamber, the air flow rate must be increased. However, if the air flow rate is increased, the combustion chamber temperature is lowered due to heat loss due to the inflow of external air, which increases the combustion time required for complete combustion. This may increase, and there is a fear that a large amount of nitrogen in the air is oxidized in the combustion furnace to promote the generation of thermal NOx.

For this purpose, by adding sodium bicarbonate, the oxygen generated when carbonate is reduced and converted to carbon dioxide at high temperature is directly involved in combustion to increase the oxygen concentration in the combustion chamber, thereby accelerating the combustion rate.

Na ₂ CO ₃ ------> 2Na ⁺ + CO ₂ + O ^-

The combustion efficiency improving agent according to a preferred embodiment of the present invention includes a dissolving agent, a clinker inhibitor for inducing complete combustion and generating a clinker inhibitory effect, and preventing the decomposition of oxygen-containing substances and improving the penetration ability of chemicals at the interface of incinerated materials. It is configured to include a stabilizer for activating the combustion reaction, and an oxygen supply agent for increasing the combustion rate and combustion efficiency by penetrating into the fuel and releasing oxygen upon reaction with heat.

The present invention compensates for the suppression of clinker generation based on boron in the prior art, and suppresses clinker generation and reduces clinker hardness by adding a silica component, while preventing premature clinker fallout during incineration and clinker fallout during incinerator maintenance It is intended to prevent personnel accidents caused by falling objects.

In the present invention, the low-boiling alkali metal contained in the fuel reacts and adsorbs with SiO ₂ in the incinerator, and the adsorbed particles fall off the bottom of the incinerator in the form of fly ash to suppress clinker formation.

In the dissolving agent, at least one aqueous solution selected from silicon compounds of Sodium Silicate (Na ₂ SiO ₃ ), Calcium Silicate (CaSiO ₃ ), and Sodium Metasilicate (Na ₂ O*SiO ₂ ) is used.

Na and K components included in the clinker inhibitor react with alkali metals and non-adsorbed silica components to form aggregates, thereby preventing the clinker formation process due to SiO ₂ from occurring.

2SiO ₂ + Na ₂ CO ₃ → Na ₂ O·2SiO ₂ + CO ₂

4SiO ₂ + K ₂ CO ₃ → K ₂ O·4SiO ₂ + CO ₂

In addition, the silica component of the silicon compound contained in the dissolving agent also has an inhibitory effect on sulfur oxides generated during incineration, and the chemical reaction formula is as follows.

As such, in the present invention, in order to suppress clinker formation and reduce clinker hardness by adding a silicon compound, sodium silicate (Na ₂ SiO ₃ ), calcium silicate (CaSiO ₃ ), and sodium metasilicate (Na2O*SiO ₂ ) in the present invention One or more selected aqueous solutions may be used, and in order to achieve the original purpose, 50 to 90 parts by weight of water and 1 to 6 parts by weight of the silicon compound should be mixed. (Stage 1)

In the first step, it is preferably carried out in a tank with a jacket attached and equipped with a stirrer, and by adding 1000 to 1500 kg of water into the tank, and stirring at 60 to 90 rpm while adding 20 to 120 kg of the silicon compound. have.

After completion of the injection of the silicon compound in the first step, the second step process of dissolving the clinker inhibitor is performed after stirring for 1 hour to 1 hour and 30 minutes more.

In the present invention, as a clinker inhibitor, it shows the greatest characteristic in that an alternative material that does not contain Na ₂ B ₄ classified as a toxic substance is used,

For this purpose, borax is not used at all, instead, Potassium Pentaborate (KB ₅ O ₈ ), Potassium Perborate (B ₂ H ₄ K ₂ O ₈ ) to weaken the bonding strength of clinker when the burned incineration product is converted to clinker. , Potassium Borohydride(KBH ₄ ), Potassium Metaborate(K ₂ B ₂ O ₄ ), Potassium Pentaborate(B ₅ KO ₈ ), Potassium Tetraborate Tetrahydrate(K ₂ B ₄ O ₇ ), (Tetrazinc Hexaborateoxide(B ₆ O ₁₃ Zn ₄ ) ), Lithium Tetraborate(Li ₂ B ₄ O ₇ ), Ammonium Biborate(NH ₄ ) ₂ B ₂ O ₇ , Ammonium Tetraborate((NH ₄ ) ₂ B ₄ O ₇ ), Calcium Tetraborate(B ₄ CaO ₇ ), Sodium Metaborate (NaBO ₂ ), Sodium Perborate (NaBO ₃ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ), Sodium Diborate (Na ₄ B ₂ ) O ₅ ) should be used,
Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) At least one selected from among is used, and in order to effectively function as a clinker inhibitor, 2 to 20 parts by weight should be added to the mixed solution in the first step, preferably 3 to 18 should be by weight. (Step 2)

However, at least one material selected as the clinker inhibitor may be added up to 20 parts by weight in consideration of the solubility of ionized borax,
Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), By using one or more selected from Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ) and Sodium Octaborate (Na ₂ B ₈ O ₁₃ ), it is possible to prevent the discharge of pollutants.

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In order to prevent the decomposition of oxygen-containing substances and improve the penetration ability of chemicals at the interface of the incinerated material to activate the combustion reaction, and to prevent the precipitation of the dissolved clinker inhibitor, a stabilizer should be added after the third step. In the present invention, Ethylene as a stabilizer Glycol (C ₂ H ₆ O ₂ ), Propane-1,2-diol (C ₃ H ₈ O ₂ ), Glycerol (C ₃ H ₈ O ₃ ), Ethylamine (C ₂ H ₅ NH ₂ ), Diethylamine (C ₄ ) H ₁₁ N), Triethylamine (C ₆ H ₁₅ N) 2-Aminoethanol (C ₂ H ₇ NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) At least one selected from among In order to prevent the decomposition of oxygen-containing materials and to improve the penetration ability of the chemical at the interface of the incinerated material to activate the combustion reaction, 5 to 10 parts by weight should be added to the mixed solution in the third step. (Step 3).

Glycerol (C ₃ H ₈ O ₃ ) may be included as a stabilizer, and Glycerol used herein is a representative trihydric alcohol and is also referred to as glycerol. , the boiling point is 290 °C.

Therefore, the combustion improver composition obtained by using glycerin as a surfactant according to the present invention can lower the melting point, so it is possible to solve the problem of freezing at room temperature in spring and autumn, which interferes with use.

The combustion improver composition of the present invention configured as described above hardly generates nitrogen oxides, does not freeze at the average external temperature in spring and autumn, so it is easy to use, induces complete combustion within a short time, and reduces the concentration of combustion exhaust gas and antacid capability, inhibit clinker growth in the furnace, and dramatically improve the convenience of furnace operation.

Finally, in order to increase the combustion rate and combustion efficiency by releasing oxygen when the mixed solution penetrates into the fuel and reacts with heat, an oxygen supplying agent must be added after the third step. In the present invention, as an oxygen supplying agent, Hydrogen Peroxide (H ₂ O ₂ ), and in order to increase the combustion rate and combustion efficiency by releasing oxygen when the mixed solution penetrates into the fuel and reacts with heat, 3 to 20 parts by weight should be added to the mixed solution in the third step, preferably as It should be 5 to 15 parts by weight. (Step 4)

For example, 80 to 120 kg of Hydrogen Peroxide (H ₂ O ₂ ) is added and mixed to the mixed solution prepared in the third step, and the addition of hydrogen peroxide causes a violent reaction to increase the temperature of the mixed solution. Raise to 70°C or higher.

However, when the temperature is increased in this way, the melting ratio of hydrogen peroxide is lowered, which causes a problem in that the amount of dissolved oxygen in the solution is significantly reduced. Therefore, according to a preferred embodiment of the present invention, before the addition of the hydrogen peroxide solution in the fourth step, preferably at least 30 minutes before, the cooler of the tank jacket is operated to keep the temperature inside the tank low. Preferably, the cooler is operated so that the temperature rise according to the addition of the hydrogen peroxide solution in the fourth step does not exceed 70°C.

In each of the above steps, aeration and agitation should be performed, and after the fourth step, aeration of 1m3/m to 60m3/m and stirring over 80RPM are performed depending on the size of the blender, and the chemical is cooled to room temperature through cooling using a cooler. and should be stabilized.

Meanwhile, in the first step, sodium hydroxide (NaOH) and potassium hydroxide (KOH) may be used instead of the silica component, and in this case, the sodium hydroxide (NaOH) and potassium hydroxide (KOH) are added to 50 to 90 parts by weight of water from 1 to It is preferable to dissolve by adding 6 parts by weight.

When sodium hydroxide (NaOH) and potassium hydroxide (KOH) are used instead of the silica component in the first step, a strong alkali exothermic reaction occurs with sodium hydroxide and potassium hydroxide and the temperature rises to 70° C. or higher, so the clinker inhibitor dissolution process will be able to more readily dissolve the clinker inhibitor in

In addition, in the present invention, in addition to the oxygen supplying agent of the fourth step, Sodium Hexametaphosphate ((NaPO ₃ ) ₆ ), Copper Dinitrate (Cu(NO ₃ ) to oxidize the residual components of hydrogen peroxide after the reaction and supply oxygen to the combustor during combustion ) ₂ ), Potassium Permanganate (KMnO ₄ ), Potassium Citrate (C ₆ H ₅ K ₃ O ₇ ) It is possible to additionally use one or more selected from the group consisting of. It is preferable to be inserted between the three steps, and it is preferable to dissolve by adding 3 to 15 parts by weight to the mixed solution of the second step.

The combustion improver having the clinker softening component of the present invention configured as described above induces complete combustion within a short time, reduces the concentration of combustion exhaust gas and improves the antacid ability, suppresses clinker growth in the combustion furnace, and improves the convenience of operation of the furnace While remarkably improving, adding a silica component to the solubilizer to suppress clinker formation and reduce clinker hardness, while using an alternative material that does not contain Na2B4 classified as a hazardous substance as a clinker inhibitor, Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate(K ₂ B ₄ 0 ₇ ), Calcium Tetraborate(CaB ₄ O ₇ ), Sodium Pentaborate(NaB ₅ O ₈ ), Sodium Hexaborate(Na ₂ B ₆ O ₁₀ ), Sodium Octaborate(Na ₂ B) ₈ O ₁₃ ) by using one or more selected from among the incinerators, the clinker binding force is weakened when the incinerated material is converted to clinker, so the operator can prevent accidents due to clinker falling during maintenance of the incinerator in advance. .
In addition, since borax used as a clinker inhibitor in the conventional combustion improving agent is classified as a toxic substance, there is a risk of causing disease or air pollution by workers, and there is a problem that the reduction effect of clinker density is suppressed,
In the present invention, as a clinker inhibitor of the combustion improving agent, Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) By using at least one selected from among, there is an effect of preventing the discharge of pollutants.

Hereinafter, the present invention will be described in more detail with reference to Examples, Comparative Examples and Experimental Examples, but it is needless to say that the scope of the present invention is not limited to these Examples.

Example 1

After adding 70 parts by weight of water into the reaction tank being stirred at 60 RPM or more, 10 parts by weight of sodium metasilicate was dissolved, 12 parts by weight of potassium tetraborate was added, and then 3 parts by weight of potassium citrate, 5 parts by weight of sodium perborate, and 8 parts by weight of glycerin. was added to prepare the combustion improving agent.

Example 2

In batch reactor 1, 77 parts by weight of water was added, and 3.8 parts by weight of one type of silicon compound was added to dissolve them all, and then transferred to Reactor 2 equipped with a heater, 1.8 and 2 parts by weight of two types of boron compounds were added, respectively, and then potassium citrate After dissolving 3.1 parts by weight of sodium percarbonate and dissolving 3.1 parts by weight of sodium percarbonate, 3.8 parts by weight of an oxygen generator was added, and 6.1 parts by weight of a stabilizer was added to prepare a combustion improver having a total weight of 100.

Example 3

In order to prevent the carbon component added to the clinker inhibitor from being expressed in the form of carbon oxide during incineration to affect TMS and to preserve the sodium silicate intact, the process sequence of the clinker inhibitor was changed.

First, 69 parts by weight of water was heated to 60 degrees, and then 3.5 parts by weight of one silicon compound and 6.9 parts by weight of sodium percarbonate were added in an aeration tank to obtain the following chemical reaction formula. (Na ₂ CO ₃ + SiO ₂ → Na ₂ SiO ₃ + CO ₂ )

Then, 3.5 parts by weight of potassium citrate was added and completely dissolved, and then 2 parts by weight of sodium perborate and 9.7 parts by weight of potassium tetraborate were dissolved at a temperature of 50 degrees. A clinker inhibitor was prepared by adding parts by weight.

Example 4

A clinker inhibitor for polymer materials was prepared to suppress clinker generation induced by polymer components such as plastics in RDF burned in a solid boiler.

In the process step, the temperature was maintained at 60°C or higher to prevent the formation of precipitates and the solidification of the drug during the preparation of the alkali dissolving agent.

First, after raising the temperature of 70 parts by weight of water, 4.4 parts by weight of caustic soda and 2 parts by weight of sodium silicate were added to make a dissolving agent, and then 2 parts by weight of sodium percarbonate, 2 parts by weight of sodium perborate and 12 parts by weight of potassium tetraborate were added, and more than 100 RPM Strong stirring was applied to accelerate the reaction. Thereafter, 7.5 parts by weight of hydrogen peroxide and 8 parts by weight of a stabilizer were added to prepare a clinker inhibitor for polymer fuel.

Experimental Example 1

In order to compare the oxygen concentration of the material of the present invention and the resulting combustion rate, the oxygen-containing material was tested by varying the concentration of sodium perborate.

The inhibitor manufacturing method was carried out according to Example 4, and the experiment was conducted by varying the amount of sodium perborate to 1, 2, and 3 parts by weight.

In the experiment, air was injected into an electric furnace heated to 950 degrees at a flow rate of 0.5 m3/min, and activated carbon was pulverized to 0.5 mm or less as fuel.

The experiment was conducted for 30 minutes to prevent all fuel from burning and only ash remaining. After the experiment, unburned fuel remained in the crucible, and the crucible was allowed to cool in a desiccator for 30 minutes and then the weight was measured. The experimental results are as follows.

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Experimental Example 2

In the present invention, boron is also used in the manufacture of flame retardants.

The present invention is a material added to fuel combusted in a combustion furnace, and TGA experiment was conducted to test the characteristic that the function should not be expressed as a flame retardant when mixed with fuel.

In the experimental method, the same sample was prepared, Sample A was analyzed with the additive prepared according to Example 1, and Sample B was analyzed without applying the additive.

Bituminous coal was used as a sample, and thermogravimetric analysis was performed in an air atmosphere at a temperature increase rate of 50°C/min. The experimental results are shown in the following graph, and the combustion starting point slope of the sample to which the additive was applied was steeper than the combustion starting point slope of the sample not to which the additive was applied.

This means that the combustion rate of the additive-coated sample is faster than that of the additive-free sample, and it can be confirmed that the inhibitor-added fuel is burned at a faster rate at a temperature of 500°C or higher.

As a result of using the combustion efficiency improving agent according to the above embodiment, it induces complete combustion within a short time, reduces the concentration of combustion exhaust gas and improves the antacid ability while suppressing clinker growth in the combustion furnace and dramatically improving the convenience of operation of the furnace, Silica component is added to the solubilizer to suppress clinker production, reduce clinker hardness, and weaken clinker binding force when incinerated products are converted to clinker, thereby preventing personnel accidents due to clinker dropping.

In addition, as a clinker inhibitor, borax (Na ₂ B ₄ O ₇ ·10H ₂ O) is replaced with other substances harmless to the human body, and in this case, Sodium Percarbonate (2Na ₂ CO ₃ ), Sodium Carbonate (Na ₂ CO ₃ ), Sodium Bicarbonate (NaHCO ₃ ), etc. are used together, which has the effect of preventing the discharge of pollutants.

As described above, the technical idea of the combustion improver having a clinker softening component and a method for producing the same according to the present invention has been specifically described in the preferred embodiment, but the above-described embodiment is for the purpose of explanation, and for the limitation It should be noted that this is not It is obvious to those skilled in the art that various modifications and variations are possible within the scope of the technical spirit of the present invention, and therefore, it is natural that such variations and modifications belong to the appended claims.

Claims (6)

A solubilizer, a clinker inhibitor for inducing complete combustion and generating a clinker inhibitory effect, a stabilizer for preventing the decomposition of oxygen-containing substances and improving the penetration ability of chemicals at the interface of incinerated materials to activate the combustion reaction, and penetration into the fuel In the combustion improving agent comprising an oxygen supply agent for increasing the combustion rate and combustion efficiency by releasing oxygen when reacting with heat,
The dissolving agent uses at least one aqueous solution selected from silicon compounds, sodium hydroxide (NaOH), and potassium hydroxide (KOH), and 1 to 6 parts by weight of the dissolving agent is mixed in 50 to 90 parts by weight of water,
The clinker inhibitor uses a substitute material that does not contain Na ₂ B ₄ classified as a toxic substance, but Potassium Pentaborate (KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate (K ₂ B ₄ 0 ₇ ), Calcium Tetraborate (CaB ₄ O) ₇ ), Sodium Pentaborate (NaB ₅ O ₈ ), Sodium Hexaborate (Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) At least one selected from among, but using 2 to 20 parts by weight, and ,
The stabilizer includes Ethylene Glycol (C ₂ H ₆ O ₂ ), Propane-1,2-diol (C ₃ H ₈ O ₂ ), Glycerol (C ₃ H ₈ O ₃ ), Ethylamine (C ₂ H ₅ NH ₂ ) , Diethylamine (C ₄ H ₁₁ N), Triethylamine (C ₆ H ₁₅ N) 2-Aminoethanol (C ₂ H ₇ NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) At least one type is used, but 5 to 10 parts by weight are used,
Hydrogen Peroxide (H ₂ O ₂ ) is used as the oxygen supplying agent, but 3 to 20 parts by weight are used as a combustion improver having a clinker softening component.
In claim 1,
In addition to the oxygen supply agent, Sodium Hexametaphosphate ((NaPO ₃ ) ₆ ), Copper Dinitrate (Cu(NO ₃ ) ₂ ), Potassium Permanganate (KMnO ₄ ), Potassium Citrate (C ₆ H ₅ K ₃ O ₇ ) A combustion improver having a clinker softening component, characterized in that it additionally uses at least one selected from the group consisting of 3 to 15 parts by weight.
To a method for producing a combustion improver for inhibiting clinker growth in a combustion chamber,
Mixing the solubilizer with water, using at least one selected from the group consisting of a silicon compound, sodium hydroxide (NaOH), and potassium hydroxide (KOH) as the solubilizer, and adding 1 to 6 parts by weight of the solubilizer to 50 to 90 parts by weight of water a first step of dissolving;
A step of dissolving a clinker inhibitor, an alternative substance that does not contain Na ₂ B ₄ classified as a toxic substance, in the mixed solution prepared in the first step, and does not contain Na ₂ B ₄ classified as a toxic substance as the clinker inhibitor Substitutes are used, but Potassium Pentaborate(KB ₅ O ₈ ), Potassium Tetraborate Tetrahydrate(K ₂ B ₄ 0 ₇ ), Calcium Tetraborate(CaB ₄ O ₇ ), Sodium Pentaborate(NaB ₅ O ₈ ), Sodium Hexaborate(Na ₂ B ₆ O ₁₀ ), Sodium Octaborate (Na ₂ B ₈ O ₁₃ ) A second step of dissolving 2 to 20 parts by weight using at least one selected from the group consisting of,
Ethylene Glycol(C ₂ H ₆ O ₂ ), Propane-1,2 as a stabilizer to prevent the decomposition of oxygen-containing substances and improve the penetration ability of chemicals at the interface of incinerated materials to activate combustion reactions and prevent clinker inhibitor precipitation -diol(C ₃ H ₈ O ₂ ), Glycerol(C ₃ H ₈ O ₃ ), Ethylamine(C ₂ H ₅ NH ₂ ), Diethylamine(C ₄ H ₁₁ N), Triethylamine(C ₆ H ₁₅ N) 2- Aminoethanol (C ₂ H ₇ NO), Diethanolamine (C ₄ H ₁₁ NO ₂ ), Triethanolamine (C ₆ H ₁₅ NO ₃ ) Use at least one selected from, and add 5 to 10 parts by weight to the mixture of the second step a third step,
Hydrogen Peroxide (H ₂ O ₂ ) is used as an oxygen supply agent for increasing the combustion rate and combustion efficiency by releasing oxygen when the mixed solution prepared in the third step penetrates into the fuel and reacts with heat, and the third step A method for producing a combustion improver having a clinker softening component, comprising a fourth step of adding 3 to 20 parts by weight to the mixed solution of
In claim 3,
Aeration and stirring are required in each step, and after the fourth step, aeration of 1m3/m to 60m3/m and agitation of 80RPM or more are performed depending on the size of the blender, and the chemical is cooled to room temperature through cooling using a cooler. A method for producing a combustion improver with a clinker softening component, characterized in that it is stabilized.
delete In claim 3,
Between the second and third steps, Sodium Hexametaphosphate ((NaPO ₃ ) ₆ ), Copper Dinitrate (Cu(NO ₃ ) ₂ ), Potassium Permanganate (KMnO ₄ ), Potassium Citrate (C ₆ H ₅ K ₃ O ₇ ) Using at least one selected from the group consisting of, adding 3 to 15 parts by weight to the mixed solution of the second step is inserted A method for producing a combustion improver having a clinker softening component comprising: