KR100832863B1 - Method for solidifying solid fossil fuels and materials solidified by the method - Google Patents

Abstract

A method for solidifying solid fossil fuels is provided to manufacture a solidification agent with high strength by using all solid fossil fuels as raw materials, and solidified materials of the solid fossil fuels, which are solidified by the solidification method, are provided. A method for solidifying solid fossil fuels by using a solidification agent comprises: a first step of mixing one or more solid fossil fuels except a single material of soft coal itself, 5 to 8 weight parts of a solidification agent relative to 100 weight parts of the solid fossil fuels, and 1 to 4 weight parts of an aqueous acrylic resin relative to 100 weight parts of the solidification agent; a second step of molding the mixture prepared in the first step; and a third step of heating the molding manufactured in the second step at a temperature of 150 to 200 deg.C or manufacturing a solidified material, wherein the solidification agent contains 34 to 52 wt.% of straight asphalt, 0.1 to 0.3 wt.% of an asphalt emulsifier, 0.2 to 0.4 wt.% of hydrochloric acid, 0.03 to 0.05 wt.% of calcium chloride, and the balance of water based on the total weight of the solidified material. The solid fossil fuels are coals, or fuels containing the coals as principal components. The solid fossil fuels are coke breeze, soft coal, anthracite, or mixtures of two or more thereof.

Description

Method for solidifying solid fossil fuels and materials solidified by the method

The present invention relates to a solidification method of a solid fossil fuel and to a solidification of a solid fossil fuel according to the method, and more particularly, to a solid fossil fuel when a solidifying agent containing a straight asphalt as a main component and an aqueous acrylic resin are mixed. As fossil fuels, solid fossil fuels such as powdered coke and anthracite generated in the coke forming process can be used as a fossil fuel, or a solid fossil fuel solidification method capable of producing a solid having high durability and high temperature stability and high calorific value. And to solidified solid fossil fuels by this method.

As a process for manufacturing molten iron which is the most basic material of steel, in the conventional process (hereinafter referred to as "blast furnace process"), a furnace is used as a facility and iron ore and coal are used as raw materials used in the furnace. Iron ore is manufactured as a sintered ore of a certain size through a sintering process, and coal is manufactured into a coke in a lump form through a coke process that solidifies to increase the production rate of molten iron to spread heat evenly. It has been used. However, in order to perform such a coke process, a separate coke oven and a coke oven gas facility for heating the coke oven are required, so a lot of facility costs are consumed and environmental pollutant emissions from these facilities were also large. In addition, in order to reduce the production cost, the fire of the blast furnace should not be turned off, and the sintering process and the coke process took much time. In addition, the iron ore that can be used in the sintering process is limited to expensive lump ore, and the production cost is high, and the coal which can be used in the coke process has a high calorific value, so that the high coking bituminous coal or petroleum relying on the whole imports It is limited to bituminous coal mixtures containing at least 50 to 60% of bituminous coal, which leads to enormous foreign currency waste. In addition, the coke generated in the amount of approximately 3 to 8% byproduct during the coke process is not easy to reuse in the steelmaking process.

According to the new process of POSCO Co., Ltd., which was developed as a way to solve the problems of the conventional blast furnace process, the raw material of sintered ore is about 23% cheaper than ferrous ore used in the blast furnace process, and has a high point as a raw material of coke. By using general bituminous coal that is 20% cheaper than that of the bituminous coal, the production cost is reduced by 10-15% compared to the blast furnace process. This process uses HCI (Hot Compacted Iron) manufacturing equipment to reduce reduced ferrite ore into sintered ore, molds the general bituminous coal into coke, and extracts molten iron by inputting them into the blast furnace. Otherwise, it is possible to turn off the blast furnace to control the economic situation, the amount of operation, etc., so it is possible to freely control the production volume and reduce the facility cost by about 8%. However, coal that can be used in this process is still limited to bituminous coal.

In addition, a method of using a material for solidifying bituminous coal has been developed in order to manufacture coke as a solid by using high coking bituminous coal as it is without undergoing a conventional coke process requiring expensive equipment. For example, there is a method of using a mixture prepared by mixing petroleum pitch, sweet potato, starch of potato, molasses and the like in water. However, the use of such a mixture as a solidifying agent lacks the high temperature stability of the coke produced and the cost of the solidifying agent is also expensive and is only limited in very few processes.

Coke, an example of solid fossil fuel solids, is used not only for casting, but also for metallurgical processes such as iron alloy, lead and zinc production, and kilns for making lime and magnesia, depending on the size and strength. It is also used to manufacture calcium carbide, which is a raw material, and the extra coke powder is used for industrial boiler fuel.

Considering the current situation of bituminous coal used as main raw material for coke, it is possible to manufacture the entire amount of bituminous coal as coke without generating by-products such as bunk coke. There is an urgent need for a solidification method for using other solid fossil fuels such as coke as raw materials for coke production.

In accordance with these requirements, the inventors of the Korean Patent Application No. 2005-0068732 dated July 28, 2005, 25 to 35% by weight emulsion asphalt, 0.05 to 0.20% by weight emulsifier for asphalt, 0.1 to 0.3% by weight hydrochloric acid, 0.01 to 0.01% calcium chloride. A method of preparing a solid fossil fuel solid by mixing a solidifying agent containing 0.05% by weight, 0.01% to 0.05% by weight of oleic acid, 0.005% to 0.030% by weight of a surfactant, and the remaining amount of water into a solid fossil fuel has been applied. However, in this method, the use of a solidifying agent containing emulsified asphalt increases the manufacturing cost of the solidified body, and the ability to cope with the high moisture content of the solid fossil fuel is poor, so that the moisture content of the solid fossil fuel as a raw material is adjusted to an appropriate range. There was a problem that required time.

The present inventors are configured to use straight asphalt as a main raw material among various petroleum asphalts, and when solidifying a solid fossil fuel by adding a solidifying agent which solidifies a solid fossil fuel rapidly with an aqueous acrylic resin, As a raw material, not only bituminous coal, but also single or mixture of solid fossil fuels such as anthracite coal and powdered coke can be used, and the durability and high temperature stability of the solidified body produced according to the conventional blast furnace process can be achieved even without the conventional process requiring expensive facility cost. The present invention has been accomplished by discovering that it is possible to produce solids of solid fossil fuels that are sustainable and have a high calorific value.

It is an object of the present invention to provide a method for solidifying a solid fossil fuel that can produce a high strength solid using all solid fossil fuels as raw materials.

Still another object of the present invention is to provide a solidified body of solid fossil fuel solidified by the solidification method.

In order to achieve the above object, the present invention is a method of solidifying a solid fossil fuel using a solidifying agent, one to two or more solid fossil fuels, 5 to 8 weight of solidifying agent based on 100 parts by weight of the solid fossil fuel Part and a first step of mixing 1 to 4 parts by weight of an aqueous acrylic resin based on 100 parts by weight of the solidifying agent; A second step of molding the mixture prepared in the first step; And the molded article prepared in the second step of 150 ~ 200 ℃ Comprising a third step of producing a solid by heating at a temperature, the solidifying agent is 34 to 52% by weight straight asphalt, 0.1 to 0.3% by weight emulsifier for asphalt, 0.2 to 0.4% by weight hydrochloric acid, calcium chloride It is characterized by containing water as 0.03-0.05 weight% and remainder.

In addition, the present invention, in the solidified body consisting of a solid fossil fuel, one or two or more solid fossil fuels, based on 100 parts by weight of the solid fossil fuel 5 to 8 parts by weight of solidifying agent and 100 parts by weight of the solidifying agent 1 to 4 parts by weight of acrylic resin is mixed and solidified. The solidifying agent is 34 to 52 wt% of straight asphalt, 0.1 to 0.3 wt% of asphalt emulsifier, 0.2 to 0.4 wt% of hydrochloric acid, and 0.03 to 0.05 calcium chloride. It is characterized by containing water as weight percent and residual amount.

Hereinafter, the present invention will be described in more detail.

In the present invention, the solidified body of the solid fossil fuel is prepared by adding and mixing a solidifying agent serving as a binder to facilitate solidification of the solid fossil fuel and an aqueous acrylic resin serving as a reinforcing agent to the solid fossil fuel. However, when bituminous coal single material is used as a solid fossil fuel, it is manufactured by further adding cement.

In the present invention, the solid fossil fuel excludes liquid and gaseous fossil fuels such as petroleum and natural gas among fossil fuels, and may be used without limitation as long as it is mainly a coal itself or a fuel mainly composed of coal. Bituminous coal, anthracite coal or a mixture of two or more of these fuels is most preferred.

On the other hand, the solidifying agent serves to transform the solid fossil fuel in the form of a powder, it is configured to contain a straight asphalt, asphalt emulsifier, hydrochloric acid, calcium chloride and water.

In general, Petroleum Asphalt is obtained in the process of manufacturing petroleum products such as petroleum refining. Straight asphalt, asphalt cement, cutback asphalt, emulsion asphalt, blown Blown) asphalt, modified asphalt, and the like can be classified. Among these, straight asphalt is the heaviest oil contained in crude oil. It is a residue obtained by distillation under high vacuum through a vacuum distillation apparatus to completely remove hard components. It has a high elongation and adhesive strength, and has a softening point. (軟化 點) is 65 degrees C or less normally. It is mainly used for road paving and airport paving. Since the straight asphalt is being shipped by domestic asphalt producers as products such as AP-3 and AP-5, it can be used as it is without further processing, thereby reducing manufacturing costs. Straight asphalt in the present invention increases the elasticity and stability of the mixed particles and serves as a surface waterproofing. If it is contained in an amount less than 34% by weight, there may be a problem that the high temperature stability is lacking due to the decrease in elasticity between particles, and when contained in an amount of more than 52% by weight, early combustion or porosity of fossil fuel is reduced Since there may be, it is contained in an amount of 34 to 52% by weight relative to the total weight of the solidifying agent. More preferably, it is contained in the amount of 40-45 weight%.

As the emulsifier for asphalt has good degradability due to the high emulsification and is used as a mixed asphalt emulsion, any cationic or nonionic emulsifier can be used without limitation. If it is contained in an amount of less than 0.1% by weight may have a problem that can not emulsify asphalt, etc., if contained in an amount of more than 0.3% by weight, the adhesive strength is improved, but there may be a problem to increase the product cost, solidifying agent It is contained in the amount of 0.1 to 0.3% by weight based on the total weight.

Hydrochloric acid is mixed with emulsifiers for asphalt to perform dispersion and decomposition and is used for mixed purification. In addition, due to the hydrogen ion (H ⁺ ) of the hydrochloric acid it is possible to solidify the properties of the solid fossil fuel as the solidifying agent is prepared by the cationic system. If it is contained in an amount of less than 0.2% by weight may be a problem that the dispersion and decomposition is not smooth, if contained in an amount of more than 0.4% by weight, there may be a problem that occurs an environmental inhibitory factor, the total weight of the solidifying agent It is contained in the amount of 0.2 to 0.4% by weight relative to the. More preferably, it is contained in the amount of 0.30 to 0.35 weight%.

Calcium chloride is used to prevent freezing of the mixture and to increase its density to prevent cracking and to promote absorption. If it is contained in an amount of less than 0.03% by weight it may not have a smooth reception with water, so there is a problem that the freeze-preventing effect is weakened. When it is contained in an amount of more than 0.05% by weight anhydride is generated a large amount of solidifying agent Since there may be a problem difficult to achieve, it is contained in an amount of 0.03 to 0.05% by weight relative to the total weight of the solidifying agent.

Water is contained so as to take up the remaining amount excluding the above components by accommodating the adaptability of the water content, it is used according to the type and wetness of the product. If too little water is contained, there may be a problem that the emulsion dispersion does not occur properly and the cost of the product is increased, and if it is excessively contained, there may be a problem that the adhesion between the mixture particles, water resistance and strength are lowered. It should also be adjusted to the appropriate range. Most preferably, it is contained in an amount of about 50 to 60% by weight based on the total weight of the solidifying agent.

In addition, the acrylic emulsion-based asphalt modifier may be included in an amount of 1 to 3% by weight based on the total weight of the solidifying agent in order to further improve the adhesion between the particles. Preferably, it is styrene butadiene styrene block copolymer (SBS Block Copolymer). For example, butanol (Butonal NS 198; manufactured by BASF, USA) and the like can be used.

The solidifying agent prepared according to this composition is a liquid emulsion containing water, and the separation of materials does not occur easily, and uniform mixing with solid fossil fuel powder is easy, so that the variation in strength of the product is very small. Is easy. In addition, the liquid phase is almost burned away in the curing process during the production process, even if the produced solid is used as a fuel and a reducing agent does not increase the amount of ash, almost no additional slag occurs during steel operations. However, when the liquid solidifying agent is used in an amount of less than 5 parts by weight with respect to 100 parts by weight of solid fossil fuel, there may be a problem in the solidification and strength of the fossil fuel, when used in an amount of more than 8 parts by weight Since the porosity of the solid may be lowered, there may be a problem of insufficient heat generation and combustibility and high product cost, so that it is preferably used in an amount of 5 to 8 parts by weight. More preferably, it is used in the quantity of 6-7 weight part.

On the other hand, the water-based acrylic resin used as a reinforcing agent improves the adhesion between the particles, and because it is a resin component can play a role of improving the waterproofing ability to produce a product having greatly improved adhesion, dispersibility and waterproofness of the fine particles. In addition, since it has excellent high temperature stability, it is possible to manufacture a product that can be burned for a long time. If it is contained in an amount of less than 1 part by weight based on 100 parts by weight of the solidifying agent, there may be a problem that the adhesion and waterproofing ability is poor, and when it is contained in an amount of more than 4 parts by weight not only increases the product cost but also Since there may be a problem of limiting the chemical capability, it is contained in an amount of 1 to 4 parts by weight based on 100 parts by weight of the hardening agent. The aqueous acrylic resin may be used without limitation as long as it serves the above, for example, 45% or more liquid aqueous acrylic may be used. When the aqueous acrylic resin is used as one component of the solidifying agent, the asphalt component is prematurely solidified first. Therefore, the aqueous acrylic resin is added to the solid fossil fuel separately from the solidifying agent as a reinforcing agent.

On the other hand, when the solidified body is manufactured using a single piece of bituminous coal as a solid fossil fuel, cement is further added in a mixing step such as a hardening agent. Cement can be used without limitation as long as it belongs to the ordinary Portland cement. If it is contained in an amount of less than 1 part by weight based on 100 parts by weight of the bituminous coal, there may be a problem that cannot compensate for the function of a single solidified coal having a high temperature stability, and if it is contained in an amount of more than 3 parts by weight, the calorific value decreases. The amount of carbon monoxide released from the solidified bituminous coal may be insufficient in the steelmaking process, and may be contained in an amount of 1 to 3 parts by weight based on 100 parts by weight of the bituminous coal.

When a solid fossil fuel, a solidifying agent and an aqueous acrylic resin are prepared with such a component composition, these are mixed, and then molded using a molding machine according to a conventional method, and the molded body is heated at a temperature of 150 to 200 ° C. to form a solid such as coke. It can manufacture. However, in the case of using bituminous coal as a solid fossil fuel, cement may be added in addition to the above components in the mixing step to prepare a solid according to the same method.

When the solidified body is manufactured according to the solidification method, solidification is possible regardless of the moisture content of the solid fossil fuel as a raw material, and the curing speed is shortened, the solidified body production rate is fast, and the product has excellent structural durability and high temperature stability at high temperature. It can manufacture. In addition, it is possible to produce a product with significantly improved adhesion, dispersibility and waterproofness of the fine particles. In addition, the calorific value of the coke produced by the single or mixture of bituminous coal, anthracite coal and powdered coke according to the conventional blast furnace method and the method of the present invention as a raw material, the calorific value of the coke produced according to the conventional blast furnace method It belongs to approximately 5,130 ~ 7,717kcal / kg, it can be seen that the calorific value of the coke produced according to the method of the present invention shows an elevated value of approximately 10% for the same raw material.

Hereinafter, the present invention will be described in detail with reference to Examples of the preparation of the solidifying agent, followed by Examples and Comparative Examples, but the present invention is not limited only to these examples.

Production Examples 1 to 3 Solidifying Agent

In a separate storage tank, straight asphalt (AP-3; manufactured by SK Corporation, South Korea) or emulsified asphalt (AP-3; manufactured by Korea, Korea) were stored while maintaining a temperature of 130 ° C or higher. In another storage tank, an emulsifier for asphalt (Farmin ST-7; manufactured by Kao Corp., Japan), hydrochloric acid, calcium chloride, and water was quantified and mixed, and the mixture was stored at 80 ° C. The asphalt and the mixture was put into a homogenizer and emulsified to prepare a solidifying agent of the preparation example. At this time, each component was added to the content of Table 1 below.

Ingredient (% by weight) Production Example One 2 3 Straight asphalt 43.3 34.0 52.0 Emulsifiers for Asphalt 0.2 0.1 0.3 Hydrochloric acid 0.3 0.2 0.4 Calcium chloride 0.04 0.03 0.05 water Remaining amount Remaining amount Remaining amount

<Examples 1 to 3 and Comparative Examples 1 to 4> coke production

Prepare a solidifying agent prepared according to the composition and content of Table 1 in advance. The powdered coke is put into an input hopper installed in a normal coke forming facility line and then transferred to a storage hopper for weighing. In a tubelaid mixer, an aqueous acrylic resin was added and mixed as powdered coke and a previously prepared hardener and reinforcing agent. Thereafter, the raw coal was discharged by molding at a pressure of 5 kg / cm 2 in a conventional molding machine, and then the raw coal was transferred to a stabilization apparatus and heated at 180 ° C. for 30 minutes to produce shaped coke. At this time, each component was added to the content of Table 2 below. The reinforcing agent was added in an amount of 2.5 parts by weight based on 100 parts by weight of the solidifying agent.

Ingredients (parts by weight) Example Comparative example One 2 3 One 2 3 4 Solidifying agent Preparation Example 1 6 - - 3 10 6 - Preparation Example 2 - 6 - - - - - Preparation Example 3 - - 6 - - - - Reinforcement Water based acrylic resin 0.15 0.15 0.15 0.15 0.15 0.04 0.3 Solid fossil fuel Buncokes (POSCO Products) 100 100 100 100 100 100 100

Test Example 1 Measurement of Coke Quality

The content of the main components of the coke prepared in Examples 1 to 3 (IM; Initial Weight Moisture), Volatile Meter Dry Basis (VM), ash (ash) and fixed carbon (FC) is measured, and Compressive strength, porosity and calorific value of the coke prepared in Examples 1 to 3 and Comparative Examples 1 to 4 were measured according to a conventional measuring method. Each measurement result is shown in Table 3 below.

quality Example Comparative example One 2 3 One 2 3 4 Main ingredients (Unit: wt%) moisture 0.36 0.39 0.37 - - - - Volatility 1.76 2.50 1.61 - - - - Ash 11.82 9.77 11.78 - - - - Fixed carbon 86.06 87.34 86.24 - - - - Performance Compressive strength (㎏ / ㎠) 77.2 75.3 72.5 40.05 51.34 33.38 28.67 Porosity (%) 34 35 32 23 27 24 18 Calorific Value (kcal / ㎏) 6,894 6,834 6,899 5,583 5,909 6,029 5,426

Coke made from high coking bituminous coal as a raw material according to the conventional blast furnace method contains 0.5 to 2.0% by weight of volatile matter, 10 to 13% by weight of ash and 80 to 89% by weight of fixed carbon, and a calorific value of 6,500 to 7,200 kcal / kg In comparison with the fact that the compressive strength is 50 to 60 kgf / cm 2 and the porosity is 30 to 45%, Examples 1 to 3 prepared by using powdered coke as the raw material for producing coke and adding 6 parts by weight of a hardening agent The main component content of coke was similar to the conventional one, and the calorific value was also approximated. On the other hand, in Comparative Examples 1 to 4, the compressive strength, porosity, and calorific value were generally worse than those of Examples 1 to 3, and were very unsuitable for use as a coke substitute manufactured from ordinary high coking bituminous coal as a raw material.

Examples 4 to 8 Coke Preparation

The coke was produced by homogeneously mixing the solidifying agent, aqueous acrylic resin, cement and solid fossil fuel single or mixture according to the composition and content of Table 4 in the same manner as in Examples 1 to 3. The cement (Tongyang Cement Product) used in Example 8 was added in the mixing step.

Ingredients (parts by weight) Example 4 5 6 7 8 Solidifying agent Preparation Example 1 6 6 6 6 6 Reinforcement Water based acrylic resin 0.15 0.15 0.15 0.15 0.15 cement Portland cement - - - - 2 Solid fossil fuel Bunk coke 50 50 - - - hard coal 50 - 50 100 - Bituminous coal - 50 50 - 100

Test Example 2 Measurement of Coke Quality

The main component content and calorific value of the coke prepared in Examples 4 to 8 were measured according to a conventional measuring method, and the results are shown in Table 5 below.

quality Example 4 5 6 7 8 Main ingredients (Unit: wt%) moisture 1.19 2.18 2.19 3.34 2.13 Volatility 3.56 17.37 15.00 7.60 16.11 Ash 13.93 3.15 9.43 10.83 16.92 Fixed carbon 81.32 77.30 73.38 78.23 64.84 Performance Calorific Value (kcal / ㎏) 6,528 7,085 6,950 6,260 7,492

The calorific value of Example 8 prepared by using only bituminous coal as the raw material for coke production and adding the solidifying agent of the present invention was used, and in addition, Examples 5 and 6 using a mixture of pulverized coke or anthracite coal and bituminous coal as raw materials , The calorific value of Example 4, which was used by mixing buncoke and anthracite without using any bituminous coal, was also excellent at 6,500 kcal / kg or more. On the other hand, the calorific value of Example 7 using only anthracite coal was also 6,200 kcal / kg or more, and the calorific value of the anthracite coal was generally improved in comparison with the point that it is in the range of 4,500 to 5,800 kcal / kg.

Test Example 3 High Temperature Stability Test of Coke

The sample coal produced by molding the coke of Example 6 and the sample coal manufactured by the coke produced in the existing coke process (product made by POSCO) were adjusted to a temperature of 1,152 ° C. in a conventional high temperature stability test apparatus. After 1 hour and 30 minutes, the coke state and the 1,152 ℃ temperature 30 minutes after elapsed to the 770 ℃ temperature and then 30 minutes after the coke state was observed. As a result, the sample bomb according to the existing process was severely deformed, while the sample bomb prepared according to the solidification method of the present invention did not deform even at high temperatures.

Test Example 4 Durability Test of Coke

The coke molded body of Example 1 was put into the normal electric furnace, and the external behavior was observed at 1,000 degreeC and 1,200 degreeC temperature, raising temperature. As a result, Example 1 prepared according to the solidification method of the present invention did not show the collapse of the product, such as differentiation, cracking, even at a high temperature of 1,200 ℃ maintained the original structure as it is. Therefore, it can be expected that there will be no behavior that impedes breathability in the furnace due to the differentiation phenomenon.

Apparatus that can be used to perform the solidification method of the present invention can be used a conventional coke forming line, a mixer for mixing fossil fuel and a hardener, except for unnecessary unnecessary equipment, a molding machine for molding into a desired shape As a pretreatment for use as a product, a line having only minimal equipment such as a stabilization device for heating the product may be manufactured and used.

Mixed coal briquettes manufactured by mixing two or more solid fossil fuels can be customized to produce a product that meets the various needs of the consumer by adjusting the calorific value, the combustion time, and the like, and can shape variously. Since the strength of the product can be freely adjusted in the range of 30 to 80㎏ / ㎠, it is possible to flexibly cope with quality control according to the demand of the consumer, and the size of the product can be flexibly adjusted in the range of 25 to 200㎜, and the shape varies Can be manufactured.

The solidified bodies produced according to the solidification method of the present invention are steel mills, steel mills, thermal power plants, cogeneration plants, kilns of cement manufacturers, glass factories, nonferrous metals manufacturers, casting factories, tire factories, facility agricultural fuels, household fuels, incinerators, etc. It is supplied and can be used widely.

In the present invention, only coke was prepared as an example of the solidified body, but the present invention is not limited thereto. If the solidified fossil fuel and the material for solidifying the same are manufactured using the solidifying agent and the aqueous acrylic resin used in the present invention, Included without limitation.

As can be seen from the above, the solidification method according to the present invention is a solidification method using a solidifying agent and an aqueous acrylic resin that solidifies a solid fossil fuel rapidly, and solid fossils such as anthracite coal and powdered coke as well as bituminous coal as a solid material. It is possible to maintain the durability and high temperature stability of conventional solids produced using only high coking bituminous coal, and to prepare solids of solid fossil fuels having a high calorific value, and to use aqueous acrylic resins. Higher strength can be developed at a lower cost than the method.

In addition, the solidification method according to the present invention may use an existing factory, and may use a simple factory established by removing complex unnecessary equipment.

Claims (6)

In the method of solidifying a solid fossil fuel using a solidifying agent, One or two or more solid fossil fuels except for bituminous coal, and 5 to 8 parts by weight of solidifying agent based on 100 parts by weight of the solid fossil fuel, and 1 to 4 parts by weight of aqueous acrylic resin based on 100 parts by weight of the solidifying agent. Stage 1; A second step of molding the mixture prepared in the first step; And The molded article prepared in the second step of 150 ~ 200 ℃ It consists of a third step of producing a solid by heating at a temperature, The solidifying agent is characterized in that it contains water as 34 to 52% by weight of straight asphalt, 0.1 to 0.3% by weight of emulsifier for asphalt, 0.2 to 0.4% by weight of hydrochloric acid, 0.03 to 0.05% by weight of calcium chloride, and the balance based on the total weight of the solidifying agent. Solid fossil fuel solidification method. The method of claim 1, wherein the solid fossil fuel is coal or a coal-based fuel. The method of claim 2, wherein the solid fossil fuel is powdered coke or anthracite or a mixture of two or more kinds of powdered coke, bituminous coal, and anthracite. In the method of solidifying a solid fossil fuel using a solidifying agent, A first step of mixing bituminous coal, 5 to 8 parts by weight of solidifying agent and 1 to 3 parts by weight of cement, and 1 to 4 parts by weight of aqueous acrylic resin, based on 100 parts by weight of the bituminous coal; A second step of molding the mixture prepared in the first step; And The molded article prepared in the second step of 150 ~ 200 ℃ It consists of a third step of producing a solid by heating at a temperature, The solidifying agent is solid, characterized in that containing 34 to 52% by weight of straight asphalt, 0.1 to 0.3% by weight of an emulsifier for asphalt, 0.2 to 0.4% by weight of hydrochloric acid, 0.03 to 0.05% by weight of calcium chloride, and the balance. How to solidify fossil fuels. In a solidified body consisting of solid fossil fuels, One or two or more solid fossil fuels except for bituminous coal, and solidified by mixing 5 to 8 parts by weight of solidifying agent and 1 to 4 parts by weight of aqueous acrylic resin based on 100 parts by weight of the solidifying agent based on 100 parts by weight of the solid fossil fuel. , The solidifying agent is characterized in that it contains water as 34 to 52% by weight of straight asphalt, 0.1 to 0.3% by weight of emulsifier for asphalt, 0.2 to 0.4% by weight of hydrochloric acid, 0.03 to 0.05% by weight of calcium chloride, and the balance based on the total weight of the solidifying agent. Solidified fossil fuels. In a solidified body consisting of solid fossil fuels, 5 to 8 parts by weight of solidifying agent and 1 to 3 parts by weight of cement and 1 to 4 parts by weight of aqueous acrylic resin, and solidified with respect to 100 parts by weight of bituminous coal, and The solidifying agent is characterized in that it contains water as 34 to 52% by weight of straight asphalt, 0.1 to 0.3% by weight of emulsifier for asphalt, 0.2 to 0.4% by weight of hydrochloric acid, 0.03 to 0.05% by weight of calcium chloride, and the balance based on the total weight of the solidifying agent. Solidified fossil fuels.