KR100866498B1 - Manufacturing method of recycled coal using rice power - Google Patents

Abstract

A manufacturing method of regeneration coal using waste charcoal is provided to be used for power-generation having calorie more than 3500~4000Kcal/Kg by mixing the waste charcoal, enterolith, FRP, sawdust and water and molding the regeneration coal, and utilizing the waste charcoal having calorie less than 3000Kcal/Kg. Waste charcoal which is not separated into the cleaned coal in the coal mine, is provided and is smashed into the size less than 3mm in the first crusher(1) and supplied to the first hopper(2). Moisture in the fixed amount of waste charcoal continuously supplied from the first hopper through the first conveyor(3), is removed in the first drier(4). The waste charcoal in which the moisture is removed from the first drier, is provided through the first exhaust conveyor(5), and stored in the second hopper(6). Enterolith which is not separated into aggregate is provided in mine, is smashed to the size less than 3mm in the second crusher(7) and is supplied to the third hopper(8). The moisture in the fixed amount of enterolith continuously supplied from the third hopper described through the second conveyor(9), is removed in the second drier(10). The enterolith in which the moisture is removed from the second drier is supplied through the second exhaust conveyor(11) and is temporarily stored in the fourth hopper(12). An FRP supplied from outside is smashed to the size less than 3mm in the third crusher(13) and is supplied to the fifth hopper(14). The moisture in the fixed amount of FRP continuously supplied through the third conveyor(15) from the fifth hopper is removed in the third drier(16). The FRP in which the moisture is removed from the third drier through the third exhaust conveyor(17), is provided and is temporarily stored in the sixth hopper(18). The sawdust is provided from sawmill and is supplied to the seventh hopper(19). The moisture in the fixed amount of sawdust continuously supplied through the fourth conveyor(20) from the seventh hopper, is removed in the fourth drier(21). The sawdust in which the moisture is removed from the fourth drier, is provided through the fourth exhaust conveyor(22) and is temporarily stored in the eighth hopper(23). After the 40 weight% of waste charcoal supplied through the first quantitative discharge valve(24) of the second hopper, the 20 weight% of enterolith supplied through the second quantitative discharge valve(25) of the fourth hopper, the 20 weight% of FRP supplied through the third quantitative discharge valve(26) of the sixth hopper and the 20 weight% of sawdust supplied through the fourth quantitative discharge valve(27) of the eighth hopper are mixed in the first mixing conveyor(28) and the regeneration coal is molded.

Description

Manufacturing method of recycled coal using rice power {omitted}

1 is a schematic view showing a process for producing recycled coal according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1, 7, 13: Krasha 2, 5, 8, 11, 14, 18, 19, 23: Hopper

3, 9, 15, 20: conveyor 4, 10, 16, 21: dryer

24, 25, 26, 27: fixed-quantity discharge valve

28, 30: mixing conveyor 29: mixer

31: molding machine

The present invention relates to a method for producing recycled coal using rice power, and in particular, 3000Kcal having difficulty in processing in coal mines by mixing sawdust in crushed and dried rice power and feldspar and FRP while forming recycled coal together with water. The present invention relates to a method for producing recycled coal using rice power to produce recycled coal that can be used for power generation with 3500 to 4000 Kcal / Kg calorie by using rice power (waste coal) having a calorific value of less than / Kg.

In general, it is well known that the rice power is also called waste rock as a generic term for valueless rock masses selected in the process of mine excavation, mining, coal mining, beneficiation, and coal mining.

In addition, the above-mentioned rice power has a calorific value of 3000Kcal / Kg or less, which is less than 3500Kcal / Kg of the poor quality coal used for power generation in Korea, which is discarded almost without being used to cause environmental pollution.

However, research has been continuously conducted to obtain a certain amount of heat while producing combustible materials by mixing combustible materials with low efficiency, such as low calories.

As a result, a method of manufacturing solid fuel by mixing various industrial wastes such as pet tire, wood flour and peat was proposed, and researches to efficiently remove the odor and harmful gas were generated when burning the solid fuel. .

Therefore, according to Patent Publication No. 89-1922, after kneading an additive having excellent cohesiveness and compressing it with a strong pressure, the molded product is put into a closed furnace and rapidly heated to 500 ° C. so that the thermal change of the bituminous coal causes the strength to act greatly. Carbonized and hardened by using additives having a porous structure such as diatomaceous earth, zeolite, or the like, including additives including lignin and lignin derivatives or mixtures thereof, and include anthracite powder, fetal coke, Solid fuels are known which are intended to add additives having the same components as bituminous coal, such as coke bristle and petro coke powder.

However, in addition to using the above-mentioned bituminous coal as a main raw material, it must undergo a rapid heat treatment at a high temperature of at least 300 ° C. At this time, there is a condition that the high temperature furnace (rotary chiron) must be in an absolute vacuum state.

In addition, according to Patent Publication No. 89-2776, peat is the main raw material, rosin is used as an adhesive, and coaltal pitch and Koji wood flour are used as a mixture. This is because Nitan powder is cooled to minus 15-25 ℃ and passed through ammonia vapor. Therefore, a large amount of sulfurous gas is generated during treatment and ammonia gas combustion. It is thin and practical.

On the other hand, according to Patent Publication No. 89-2831, homogeneous kneading of chloric acid, chromic anhydride, and bentonite into a waste resin formed by homogeneous mixing of waste synthetic resins without chlorine or sulfur components into aggregates, wood powder, rice husk or low carbon charcoal And a solid fuel obtained by kneading the mixture and waste pulp in the chipped resin body are known.

However, since the use of chloric acid chlorine (KclO) and chromic anhydride (CrO) is not only a possibility of explosion by heating or impact, but also expensive, this has not been put to practical use.

Meanwhile, solid fuel using waste such as waste synthetic resin has been proposed.

Patent Publication No. 1989-002831 homogeneously kneads the waste synthetic resin to form a chip, and then mixes and molds chlorate, chromic anhydride, bentonite, high-temperature dry carbonized wood flour, rice husk, and low carbon mixture to form solid fuel. will be.

Korean Patent Laid-Open Publication No. 10-2000-041940 relates to a method of collecting solid waste containing organic matter, and mixing, mixing, and molding ocher and carbon powder therein.

Korean Patent Laid-Open Publication No. 10-2003-25985 pulverizes a flammable waste, injects lime into the pottery, and extrudes and molds the molding machine to make a solid fuel.

Korean Patent Laid-Open Publication No. 10-2001-067490 mixes waste synthetic fibers and waste synthetic rubber with waste paper and the like, and adds calcium oxide and synthetic zeolite to the mixture to form a solid fuel.

Korean Patent Laid-Open Publication No. 10-2002-059074 relates to a method of drying and combusting a flammable waste to form a high temperature compression.

Korean Patent Laid-Open Publication No. 10-2002-075763 is intended to prepare a solid fuel by injecting, mixing, heating, compression molding, and then extruding and molding a combustible waste into chips in which combustible waste is pulverized.

The existing manufacturing methods for the solid fuels discussed above have various problems, such as the production of solid fuels using waste synthetic resins individually, which requires a high treatment cost for waste synthetic resins and their recycling efficiency. there was.

Therefore, the present invention has been devised to solve the above-mentioned problems, and it is difficult to process in coal mines by shaping recycled coal together with water while mixing sawdust in crushed and dried rice and feldspar and FRP. It is to provide a method for producing recycled coal using rice power to produce recycled coal that can be used for power generation with 3500 calorie or more calories of more than 3500 Kcal / Kg. The purpose.

Method for producing recycled coal using the rice power of the present invention for achieving the above object,

A process of supplying rice power (wastestone) not separated by coal from coal mines, crushing it in the first crusher and supplying it to the first hopper;

Removing water from the first dryer from the first hopper through a first conveyor in a constant amount in the first dryer;

Receiving the water from which the water is removed from the first dryer through a first discharge conveyor and temporarily storing the water in the second hopper;

Receiving feldspar not separated from aggregate in the mine and crushing it in the second Krasha to supply it to the third hopper,

Removing water in the second dryer from the feldspar, which is continuously supplied in a predetermined amount from the third hopper through the second conveyor;

Receiving the feldspar from which water is removed from the second dryer through a second discharge conveyor and temporarily storing the feldspar in a fourth hopper;

Crushing the FRP supplied from the outside in the third crusher and supplying it to the fifth hopper,

Removing water in the third dryer from FRP continuously supplied in a predetermined amount from the fifth hopper through the third conveyor;

Receiving the FRP from which water is removed from the third dryer through a third discharge conveyor and temporarily storing the FRP in a sixth hopper;

Receiving sawdust from the lumber mill and supplying it to the 7th hopper,

Removing water from the fourth dryer from the seventh hopper through a fourth conveyor in the fourth dryer;

Receiving the sawdust from which water is removed from the fourth dryer through a fourth discharge conveyor and temporarily storing the sawdust in an eighth hopper;

40 wt% of the rice force supplied through the first quantitative discharge valve of the second hopper, 20 wt% of feldspar supplied through the second quantitative discharge valve of the fourth hopper, and the third quantitative discharge valve of the sixth hopper. Receiving 20% by weight of FRP and 20% by weight of sawdust supplied through the fourth quantitative discharge valve of the eighth hopper through a mixing conveyor, and transferring the same to the mixer;

It characterized in that it is carried out by the process of molding the recycled coal while pouring water so that the mixture mixed in the first mixer is transferred to the molding machine through the mixing conveyor.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Method for producing recycled coal using rice power according to the present invention,

Receives the power (wastestone) which is not separated by coal from coal mines, and crushes it to the size of 3 mm or less in the 1st crusher 1, and supplies it to the 1st hopper 2,

The first dryer (4) is to remove the water from the first hopper (2) from the first hopper 2 through the first conveyor (3) to the water that is continuously supplied in a constant amount

Received through the first discharge conveyor (5) to remove the water from the first dryer (4) through the first hopper 6 to temporarily store in the second hopper 6,

Receiving feldspar not separated by aggregate from the mine to be crushed to a size of 3 mm or less in the second crusher 7 to be supplied to the third hopper 8,

From the third hopper 8 to remove the water in the feldspar continuously supplied in a constant amount through the second conveyor 9 in the second dryer 10,

The feldspar from which water is removed from the second dryer 10 is supplied through the second discharge conveyor 11 to be temporarily stored in the fourth hopper 12.

FRP supplied from the outside is crushed to a size of 3 mm or less in the third crusher 13 to be supplied to the fifth hopper 14,

From the fifth hopper 14 to the third dryer 16 to remove the water on the FRP continuously supplied in a constant amount through the third conveyor 15,

Received through the third discharge conveyor 17, the FRP from which the water is removed from the third dryer 16 is temporarily stored in the sixth hopper 18,

Sawdust is supplied from the wood place to be supplied to the seventh hopper (19),

From the seventh hopper 19 to remove the water from the sawdust continuously supplied in a constant amount through the fourth conveyor 20 in the fourth dryer 21,

The sawdust from which the water is removed from the fourth dryer 21 is supplied through the fourth discharge conveyor 22 to be temporarily stored in the eighth hopper 23.

40 weight% of the rice force supplied through the 1st fixed quantity discharge valve 24 of the said 2nd hopper 6, 20 weight% of feldspar supplied through the 2nd fixed quantity discharge valve 25 of the 4th hopper 12, 20% by weight of FRP supplied through the third fixed-quantity discharge valve 26 of the sixth hopper 18 and 20% by weight of sawdust supplied through the fourth fixed-quantity discharge valve 27 of the eighth hopper 23 are provided. Received through the mixing conveyor 28 to be transported to the mixer 29,

The mixture mixed in the first mixer 29 is transferred to the molding machine 31 through the second mixing conveyor 30 so as to form recycled coal while pouring water.
The mixer 29 is a general configuration for mixing the materials contained therein by the stirring blade that rotates like the shaft receiving the rotational force, and the molding machine 31 also puts the material inside the mold having a predetermined shape space It is a general configuration that produces compressed coal of a certain shape by compression.

In the forming process, a hardening agent may be added and used to prepare a solid solid.

The present invention configured as described above is characterized in that the process for producing recycled coal using the rice power,

Receiving rice power (wastestone) not separated by coal from coal mines and crushing it to a size of 2 to 4 mm or less in the first crusher 1 and supplying it to the first hopper 2,

Removing the water from the first hopper (2) from the first hopper 2 through the first conveyor (3) in the first dryer (4),

Receiving the water from which the water is removed from the first dryer (4) through the first discharge conveyor (5) and temporarily storing it in the second hopper (6);

Receiving feldspar not separated by aggregate from the mine and crushing it to a size of 2 to 4 mm or less in the second crusher 7 and supplying it to the third hopper 8;

Removing the water from the feldspar continuously from the third hopper 8 through the second conveyor 9 in a constant amount in the second dryer 10;

Receiving the feldspar from which water is removed from the second dryer 10 through the second discharge conveyor 11 and temporarily storing the feldspar in the fourth hopper 12;

Crushing the FRP supplied from the outside into a size of 2 to 4 mm or less in the third crusher 13 and supplying it to the fifth hopper 14,

Removing the water from the fifth hopper 14 through the third conveyor 15 through the third conveyor 15 in the third dryer 16;

Receiving the FRP from which the water is removed from the third dryer 16 through the third discharge conveyor 17 and temporarily storing the FRP in the sixth hopper 18;

Receiving sawdust from a lumber mill and supplying it to the seventh hopper 19;

Removing water from the seventh hopper 19 from the sawdust continuously supplied in a constant amount through the fourth conveyor 20 in the fourth dryer 21;

Receiving the sawdust from which water is removed from the fourth dryer 21 through the fourth discharge conveyor 22 and temporarily storing the sawdust in the eighth hopper 23;

40 weight% of the rice force supplied through the 1st fixed quantity discharge valve 24 of the said 2nd hopper 6, 20 weight% of feldspar supplied through the 2nd fixed quantity discharge valve 25 of the 4th hopper 12, 20% by weight of FRP supplied through the third fixed-quantity discharge valve 26 of the sixth hopper 18 and 20% by weight of sawdust supplied through the fourth fixed-quantity discharge valve 27 of the eighth hopper 23 are provided. Receiving the feed through the mixing conveyor 28 and transferring it to the mixer 29,

The mixture mixed in the first mixer 29 is transferred to the molding machine 31 through the second mixing conveyor 30 so that recycled coal may be formed while pouring water.

Here, rice force and sawdust are made to interact with each other to improve combustibility, and feldspar and FRP play a role of making molding easier.

As described in detail above, according to the method for producing recycled coal using rice power according to the present invention, it is difficult to process coal mines by mixing sawdust in crushed and dried rice power and feldspar and FRP while forming recycled coal together with water. By utilizing the rice power (waste coal) having a calorie value of less than 3000Kcal / Kg to eat, there is an advantage such as the production of recycled coal that can be used for power generation with a calorific value of 3500 to 4000Kcal / Kg or more.

Claims (1)

A process of supplying rice power (wastestone) which is not separated from coal mines to coal by crushing it to a size of 3 mm or less in the first crusher 1 and supplying it to the first hopper 2, Removing the water from the first hopper (2) from the first hopper 2 through the first conveyor (3) in the first dryer (4), Receiving the water from which the water is removed from the first dryer (4) through the first discharge conveyor (5) and temporarily storing it in the second hopper (6); Receiving feldspar not separated by aggregate from the mine and crushing it to a size of 3 mm or less in the second crusher 7 and supplying it to the third hopper 8; Removing the water from the feldspar continuously from the third hopper 8 through the second conveyor 9 in a constant amount in the second dryer 10; Receiving the feldspar from which water is removed from the second dryer 10 through the second discharge conveyor 11 and temporarily storing the feldspar in the fourth hopper 12; Crushing the FRP supplied from the outside into a size of 3 mm or less in the third crusher 13 and supplying it to the fifth hopper 14, Removing the water from the fifth hopper 14 through the third conveyor 15 through the third conveyor 15 in the third dryer 16; Receiving the FRP from which the water is removed from the third dryer 16 through the third discharge conveyor 17 and temporarily storing the FRP in the sixth hopper 18; Receiving sawdust from a lumber mill and supplying it to the seventh hopper 19; Removing water from the seventh hopper 19 from the sawdust continuously supplied in a constant amount through the fourth conveyor 20 in the fourth dryer 21; Receiving the sawdust from which water is removed from the fourth dryer 21 through the fourth discharge conveyor 22 and temporarily storing the sawdust in the eighth hopper 23; 40 weight% of the rice force supplied through the 1st fixed quantity discharge valve 24 of the said 2nd hopper 6, 20 weight% of feldspar supplied through the 2nd fixed quantity discharge valve 25 of the 4th hopper 12, 20% by weight of FRP supplied through the third fixed-quantity discharge valve 26 of the sixth hopper 18 and 20% by weight of sawdust supplied through the fourth fixed-quantity discharge valve 27 of the eighth hopper 23 are provided. Method of producing recycled coal using the rice power, characterized in that it is produced by the process of molding the recycled coal in a general molding machine (31) after mixing in a general mixer (29) supplied through the mixing conveyor (28).

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