KR880002515B1 - Process for the preparation of solid fuels - Google Patents

Abstract

A method for prepg. solid fuels comprise (i) mixing low quality anthracite (below 2,500 kcal/kg), lignite (5,000 kcal/kg) or peat (5,000 kcal/kg) as a major constituents with industrywaste-carbides i.e. synthetic-resin-waste-carbides, paper mill sludge carbides, (ii) adding deodorizer i.e. sthylenmonomer or ethyleneglycole and heating for 60-90 mins in the heatingcombustion-furnace (250 deg.C), (iii) heating by hot blast (170-230 deg.C) in the rotary kiln (10) to separate odor and gas from the raw fuels and (iv) moulding by compression.

Description

Solid Fuel Production

The accompanying drawings are schematic diagrams of embodiments to illustrate the invention.

* Explanation of symbols for main parts of the drawings

1: crusher 2: screw conveyor system

3, 7, 13: conduits 4, 8, 14, 20: cyclone

10: rotary keytone 11: hot stove

12: blower 15: collector

16: aqueous solution drop tank 17: aqueous solution storage tank

18: heating and combustion furnace 19: the integrated place of the carbonized raw material

9, 21: sucker 22: heat compression molding machine

23: heating room

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of solid fuels, and more particularly to the production of solid fuels mainly made of lignite and peat, which have been prevented with little use for coal mining coal ash (low coal), which is commonly referred to as a barrel.

Already, the prior art patent No. 20424 of the inventors was characterized by mixing papermaking sludge, coal mining charcoal, and wood flour with the addition of shell oil to the carbide of papermaking drone or activated sludge.

The present invention is an extremely low coal or coal miner of less than 2,500 Kcal / kg, and lignite and peat (which is easily ignored due to the unpleasant odor of the combustor while being easy to coales when exposed to topsoil) It is a main object of the present invention to manufacture solid fuel comprising i) as a main raw material.

As is well known, low coal is known as coal mining coal material, which refers mainly to less than 3,000 Kcal / Kg, but more than 3,000 Kcal / Kg is used as a raw material for thermal power plants by adding and adding banca C oil to it. Coal crushed coal mining materials have no purpose and cannot be discarded and cannot be disposed on the surface due to pollution problems. As described above, lignite and peat are inexhaustibly buried in the exposed state of the earth's surface. The nasty smell of this has also caused the pollution and has been branded unusable.

However, lignite and peat have a relatively high calorie value of 4,950 Kcal / Kg to 5,140 Kcal / Kg, and the ash contains 75.4% of ash and 0.1% of grease according to an analysis test of the Korea Institute of Energy and Resources. It can be seen.

Therefore, the present invention is mainly made of coal mining materials as described above having a low caloric value of less than 2,500 Kcal / Kg and peat in the state of exposure to lignite and topsoil, which has never been seen before, and relatively high calorific value among industrial wastes. Carbide, for example synthetic resin waste, rubbish, paper head furnace, tires, waste oil, heavy oil streak, wood meal, mass, pitch, rice husk, rice straw, etc. To develop the energy.

When the carbonized synthetic resin waste or pet tire is quenched and pulverized to below 60 ° C. or lower, carbonized coke such as carbon black having a high Young's weight of at least 7,500-8,000 Kcal / Kg can be obtained. The A-burn oil contained in the vapor generated during carbonization may be recovered and mixed with the liquid fuel.

However, when the above lignite and peat are used as the main raw materials, the odor generated during combustion must be removed.

Therefore, it has not been able to solve the odor until now, the bar, another object in the manufacturing method of the solid fuel of the present invention is a deodorizing method for removing the odor from the lignite and peat as described above.

Deodorizing material for deodorizing such odor is not yet known, it is a novel method known as rain in the present invention.

The deodorant described above should be inexpensive and readily available.

Deodorant in the present invention can remove not only the odor generated during the combustion of lignite and peat, but also the odor generated during the combustion of mixed other carbides should not cause pollution.

Carbon and chemical formulas

Stylen Monomer or Ethylene Glycol, which is represented by, is suitable, and each is used in equal mixing ratio.

In addition, in the present invention, the additives include carbides, paper carbides, synthetic carbides, and petty cokes, as well as carbides, paper powders and wood carbides, heavy oil sludges or their carbides, charcoal, and carbides. Although pitches and carbides thereof are exemplified, when the above materials are mixed, a suitable amount of the surfactant is mixed and transferred to a screw conveyor by air pressure or by using a bages comb to transfer to a cyclone to a suitable size. The filtered raw material is again transferred to a cyclone using a screw conveyor.

Such a cyclone is 5 W /% compared to the raw coal through a deodorant containing carbon and styrene monomer (melting point -33 ℃, 145 ℃ at boiling point 760m HG, 145 ℃) / or deodorant mixed in the same ratio It is estimated that ammonia (NH ₃ ) or sulfurous acid gas (SO ₂ ) or hydrogen sulfide (H ₂ S) and other odors are eluted by mixing and carbonizing by treating them at a high temperature of 250 ° C. or less for 60-90 minutes.

Therefore, the odor and gas separated from the coal briquettes are elevated to the cyclone and the raw coal is dropped into the drying chamber along the hot air of 170-230 ° C. before the coal is ignited by the hot air furnace while passing through the rotary kiln. One smell and gas are absorbed and neutralized by passing through a cradle filled with coal powder, zeolite and palm activated carbon, and the remaining smell and gas are collected in a collector and dissolved in an aqueous solution, and the flammable gas is weakened by cooling and separated for reuse. There is a number.

The chemical composition of the adsorbent filled in the cray is 87.335% of silicon oxide (SiO ₂ ), 0.21% of titanium carbide (TiO ₂ ), 5.19% of aluminum oxide (Al ₂ O ₃ ), and 1.64% of iron oxide (Fe ₂ O ₃ ). , 0.27% calcium oxide (CaO), 0.555% magnesium oxide (MgO), 0.255% sodium oxide (NaO), 0.745% potassium oxide (K ₂ O).

On the other hand, raw coals from which odors and gases that have been dropped from the cyclone are removed are sent to a molding machine heated to 190 ° C. to be formed into solid coals of any shape and size, but before being sent to the molding machine, “carboxymethyl cellulose” is added. (Carboxy Methyl Cellulose) is added.

The solid coal of the present invention molded as described above can obtain a high energy solid coal of 5,000 Kcal / Kg or more and 7,000 Kcal / Kg, and has a long-term combustion ability of burning time of at least 14 to 26 hours. Can be used as

Hereinafter, the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the examples, but other low-carbon coal, lignite, and peat may be used in addition and other miscellaneous additives.

Example 1

Fetal coke or its carbide… … … … … … … … … … … 40 W /%

Peat (4,000 Kcal / Kg-6,000 Kcal / Kg)… … … … … … … 20 W /%

Low quality anthracite (less than 2500 Kcal / Kg); … … … … … … … … 40 W /%

And finely crushed into a grinder (1), and a screw conveyor system (2) is installed at the bottom of such a grinder, which is further mixed and moved while being transported under the grinder (1). The material that is loaded onto the cyclone 4 through the conduit 3 and then falls into the screen 5 is selected to be a certain size of 120 mesh or less, and the material passed through the screen 5 is again integrated into the integrated body 6. The mixed conveyer is conveyed by a screw conveyor to the cyclone (8) through a conduit (7) by an elevator, and such a cyclone includes an absorber (9) containing deodorizing material made of carbon and styrene monomer or ethylene glycol. Connected to the carbonizer 18 at a constant ratio of 5% relative to the raw material, heated to 250 ° C. or less for 60 minutes to 90 minutes, and sent to the rotary kiln 10 and heated in the heating chamber 23 by the raw coal and And odor are separated and the rotary ketone 10 is forced to blow 170-230 ° C. hot air of the hot blast furnace 11 based on the blower 12, and the raw material thus dried and pushed out again takes the conduit 13 Transferred to the cyclone 14.

As described above, the vapor gas and the odor which are transferred to the cyclone 14 together with the dried raw material are raised to pass through the new cradle 24 filled with the sorbent such as activated carbon and zeolite, and is collected by the collector 15 provided with a suction compressor. Aspirated and dissolved by an aqueous solution drop tank 16 in which a neutralizing agent (industrial alcohol) is dissolved, and combustible gas which is not dissolved in vapor gas is collected and collected, and a storage tank 17 is provided with a pump to provide an aqueous solution drop tank 16. Inject the water for supply from the tank 16 to reflux.

Meanwhile, the dried fuel dropped from the cyclone 14 is transferred to a screw conveyor installed under the fuel chamber 19 to be forcibly transferred to the cyclone 20 and the binder contained in the absorber 21 in the cyclone 20. Phosphorus CMC is quantitatively introduced and mixed to form solid coal of any form by the molding machine 22 in a heated state.

That is, the hollow rod-shaped solid coal may be cut to an arbitrary length, and the hollow rod-shaped solid coal may be conical or polygonal.

As described above, the calorific value of the coal briquette fuel was 5,100 Kcal / Kg, and the ash after burning helped the distance of the waste because there is little residue after the known anthracite or bituminous coal.

In addition, carbon monoxide production and sulfur dioxide gas generation were extremely low, almost no irritating odor, and the combustion time was about 13 hours.

Example 2

1. lignite or peat (4,000 Kcal / Kg-6,000 Kcal / Kg). … … … … 20 W /%

2. Low anthracite coal (less than 2,500 Kcal / Kg). … … … … … … … … … … … 60 W /%

3. Feti coke… … … … … … … … … … … … … … … … … … … … 10 W /%

4. Papermaking or its carbides. … … … … … … … … … … … … … … 10 W /%

As in Example 1, the heat was 3,900 Kcal / Kg calorie bar made the solid fuel was the same as in Example 1.

Example 3

1. The same amount of low anthracite coal (2,500 Kcal / Kg) and lignite (4,000-6,000 Kcal / Kg) or peat. … … … … … … … … … … … … … … … … … … … … … … … … … 50 W /%

2. Fetal coke or its carbide… … … … … … … … … … … … 30 W /%

3. Papermaking or Carbide thereof … … … … … … … … … … … … … 10 W /%

4. Heavy oil. … … … … … … … … … … … … … … … … … … … … 10 W /%

When the solid fuel was molded according to the same process as in Example 1, a calorific value of 5,450 Kcal / Kg of high energy solid fuel was obtained. The combustion time was 16 hours and the effect was the same as that of Example 1.

In addition, the same effect was obtained by changing to synthetic carbide instead of petty coke.

Example 4

1. Low anthracite coal (2,500 Kcal / Kg). … … … … … … … … … … … 20 W /%

2. Lignite or peat (4,000-6,000 Kcal / Kg). … … … … … … 20 W /%

3. Feti coke… … … … … … … … … … … … … … … … … … 50 W /%

4. Paper or paper head or carbides thereof; … … … … … 10 W /%

When the solid fuel was molded in the same manner as in Example 1, the calorific value of the solid fuel of 5,800 Kcal / Kg was obtained, and the effect was the same as in Example 1, which had no odor and almost no ash, and the combustion time was 18 hours. .

Example 5

1. Carbide in heavy oil sludge… … … … … … … … … … … … … … … … … 10 W /%

2. Papermaking Carbide … … … … … … … … … … … … … … … … … 10 W /%

3. Feti coke… … … … … … … … … … … … … … … … … … … 10 W /%

4. Lignite or peat (5,000 Kcal / Kg or less). … … … … … … … … … 30 W /%

5. Low quality anthracite (less than 2,500 Kcal / Kg). … … … … … … … … … … 40 W /%

When the solid fuel was molded as in Example 1, the calorific value was 5,000 Kcal / Kg, and the solid fuel exerting a calorific value of 7,000 Kcal / Kg was obtained by increasing the mixing amount of the tire coke.

The effect was the same as that of Example 1, and the same effect was obtained even by replacing the synthetic resin carbide instead of the petty coke.

Example 6

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 10 W /%

2. Carbide or Paper Carbide to. … … … … … … … … … 10 W /%

3. Peat or lignite (5,000 Kcal / Kg). … … … … … … … … … … … 30 W /%

4. Low quality anthracite (2,500 Kcal / Kg). … … … … … … … … … … … … 50 W /%

5. Lipophilic Surfactant. … … … … … … … … … … … … … … … … … Slightly

When the solid fuel was molded as in Example 1, the calorific value was 5,700 Kcal / Kg, the same effect as in Example 1, and the combustion time was 14 hours.

Example 7

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 30 W /%

2. Paper sludge or paper head or its carbide… … … … … … 20 W /%

3. Lignite or peat (5,000 Kcal / Kg). … … … … … … … … … … … 50 W /%

4. Lipophilic Surfactant. … … … … … … … … … … … … … … … … … … Slightly

When the solid fuel was prepared as in Example 1, the amount of heat generated was 5,000 Kcal / Kg, the combustion time was 18 hours, the effect was the same as in Example 1.

Example 8

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 20 W /%

2. rice straw carbide… … … … … … … … … … … … … … … … … … … … … 20 W /%

3. Feti coke… … … … … … … … … … … … … … … … … … … 20 W /%

4. Low anthracite coal (2,500 Kcal / Kg). … … … … … … … … … … … … … 40 W /%

When the solid fuel was molded as in Example 1, the calorific value was 5,200 Kcal / Kg, and the combustion time was only 8 hours, but there was no smell, so it was possible to replace it with household lignite.

Example 9

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 20 W /%

2. Wood and wood or its carbides. … … … … … … … … … … … … … 20 W /%

3. Pitch… … … … … … … … … … … … … … … … … … … … … … … … … 10 W /%

4. Lignite or peat (5,100 Kcal / Kg). … … … … … … … … … … … … 20 W /%

5. Low anthracite coal (2,500 Kcal / Kg). … … … … … … … … … … … … … … 30 W /%

When the solid fuel was molded as in Example 1, the calorific value was 5,300 Kcal / Kg, the combustion time was 8 hours, and there was no smell.

Example 10

In Example 1-9, the solid fuel was formed without adding an equal mixture of carbon and styrene monomer or ethylene monomer as a deodorant, and thus the calorific value was the same, but it was almost endurable within the range of 50 to 70 meters (non-wind) during combustion. There was an unpleasant odor, and the odor could be felt outside 100 meters (the mosquito had a special smell).

Example 11

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 20 W /%

2. Carbide or rice straw carbide. … … … … … … … … … … … … … … … … 20 W /%

3. Pitch… … … … … … … … … … … … … … … … … … … … … … … … … 10 W /%

4. Lignite or peat (5,100 Kcal / Kg). … … … … … … … … … … … … 20 W /%

5. Low anthracite coal (2,500 Kcal / Kg). … … … … … … … … … … … … … 30 W /%

When the solid fuel was molded as in Example 1, the calorific value was 5,290 Kcal / Kg, the combustion time was 14.3 hours, and there was almost no pollution problem such as carbon monoxide and sulfurous acid gas as in Example 1.

Example 12

1. lignite and peat or copper carbide (4,000-6,000 Kcal / Kg). … … … 50 W /%

2. Low anthracite or copper carbide (2,500 Kcal / Kg). … … … … … … … … 30 W /%

3. Papermaking or Copper Carbide … … … … … … … … … … … … … … … … 10 W /%

4. Heavy oil or copper carbide… … … … … … … … … … … … … … … … … 10 W /%

When the solid fuel was molded according to the same process as in Example 1, the calorific value was 5,150 Kcal / Kg, the combustion time was 16 hours, and the effect was the same as in Example 1.

Example 13

1. Heavy oil or copper carbide … … … … … … … … … … … … … … … 10 W /%

2. Papermaking Paper Making or Copper Carbide … … … … … … … … … … 10 W /%

3. Lignite or Copper Carbide (5,000 Kcal / Kg). … … … … … … … … … … … 30 W /%

4. Low anthracite or copper carbide (2,500 Kcal / Kg). … … … … … … … … 50 W /%

The same process as in Example 1 was used as peat dash lignite, which was 5,350 Kcal / Kg, the burning time was 14 hours, and the effect was the same as that of Example 1.

Example 14

1. lignite or peat or copper carbide (4,000-6000 Kcal / Kg). … 20 W /%

2. Heavy oil or copper carbide… … … … … … … … … … … … … … … 10 W /%

3. Wood powder or copper carbide… … … … … … … … … … … … … … … … … … 10 W /%

4. Low anthracite or copper carbide (2,500 Kcal / Kg). … … … … … … 60 W /%

After using peat or lignite in the same manner as in Example 1, the calorific value was 5,250 Kcal / Kg, the combustion time was 12 hours, and the effect was the same as in Example 1.

Example 15

1. Heavy oil or its carbides … … … … … … … … … … … … … 10 W /%

2. Papermaking or Carbide thereof … … … … … … … … … … … … … 10 W /%

3. Fetal coke or carbides thereof. … … … … … … … … … … … 10 W /%

4. Lignite or its carbides (5,000 Kcal / Kg). … … … … … … … … 30 W /%

5. Low anthracite coal or carbides thereof (less than 2,500 Kcal / Kg). … … … 40 W /%

Using the same process as in Example 1 lignite instead of peat bar calorific value was 5,400 Kcal / Kg, the burning time was 15 hours, the effect was the same as in Example 1.

Example 16

1. Heavy oil or its carbides … … … … … … … … … … … … 20 W /%

2. Lignite or its carbides… … … … … … … … … … … … … … … … 20 W /%

3. Peat or its carbides (5,000 Kcal / Kg). … … … … … … … 20 W /%

4. Paper waste, paper head or carbides thereof. … … … … … … 10 W /%

5. Low anthracite coal or carbides thereof (2,500 Kcal / Kg). … … … … 30 W /%

The solid fuel was molded in the same manner as in Example 1, the calorific value was 5,300 Kcal / Kg, the combustion time was 14 hours, and the effect was the same as in Example 1.

Example 17

1. Lignite or its carbides (5,000 Kcal / Kg). … … … … … … … … … 20 W /%

2. Heavy oil or its carbides… … … … … … … … … … … … … … … 20 W /%

3. Wood powder, wood or its carbides. … … … … … … … … … … … … … … 20 W /%

4. Low anthracite coal or carbides thereof (2,500 Kcal / Kg). … … … … … … 40 W /%

5. Pitch or Carbide… … … … … … … … … … … … … … … … … … 10 W /%

The solid fuel was molded according to the same process as in Example 1, the calorific value was 5,100 Kcal / Kg, the combustion time was 12 hours, and the effect was the same as in Example 1.

Example 18

1. Lignite and its carbides (4,000-6,000 Kcal / Kg). … … … … … … … 50 W /%

2. Peat or its carbides (4,000-6,000 Kcal / Kg). … … … … … … 50 W /%

As a result of the same method as in Example 1, the combustion time was 4,500 Kcal / Kg, and the effect was the same as in Example 1.

Example 19

1. Heavy oil or its carbides … … … … … … … … … … … … … … 20 W /%

2. Lignite or its carbides (5,000 Kcal / Kg). … … … … … … … … … 40 W /%

3. Peat or its carbides (5,000 Kcal / Kg). … … … … … … … … … 40 W /%

In the same manner as in Example 1, the combustion time was 12 hours with a calorific value of 5,100 Kcal / Kg, and the effect was the same as in Example 1.

Example 20

1. Peat or its carbides (4,000 Kcal / Kg). … … … … … … … … … 100 W /%

In the same manner as in Example 1, the combustion time was 11 hours with a calorific value of 4,500 Kcal / Kg, and the effect was the same as in Example 1.

Example 21

Lignite or copper carbide (4,000 Kcal / Kg) … … … … … … … … … 100 W /%

In the same manner as in Example 1, the combustion duration was 11 hours with a calorific value of 4,500 Kcal / Kg, and the effect was the same as in Example 1.

Example 22

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 10 W /%

2. Paper carbide or paper head with its carbide. … … … … … … … … 10 W /%

3. Union carbon or its carbide… … … … … … … … … … … … … … 20 W /%

4. Wood powder, wood or its carbides. … … … … … … … … … … … … … … 10 W /%

5. Lignite or its carbides (5,000 Kcal / Kg). … … … … … … … … … 50 W /%

As a result of the same process as in Example 1, the combustion duration was 12 hours at 5,350 Kcal / Kg, and the effect was the same as in Example 1.

Example 23

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 20 W /%

2. Papermaking or Carbide thereof … … … … … … … … … … … … … 20 W /%

3. Lignite or its carbides (5,000 Kcal / Kg). … … … … … … … … 60 W /%

The combustion duration was 12 hours with a calorific value of 5,500 Kcal / Kg, and the effect was the same as that in Example 1.

Example 24

1. Heavy oil. … … … … … … … … … … … … … … … … … … … … 15 W /%

2. Regiment or Carbide thereof … … … … … … … … … … … … … 15 W /%

3. Wood powder or its carbide. … … … … … … … … … … … … … … … … 10 W /%

4. Peat or its carbides (5,000 Kcal / Kg). … … … … … … … … 60 W /%

As a result of the same process as in Example 1, the combustion duration was 12 hours at 5,350 Kcal / Kg, and the effect was the same as in Example 1.

As described above, according to the embodiment of the present invention, the coal mining material (particularly 2,500 Kcal / Kg or less) used as the main raw material in the present invention can be used as an alternative energy that has not been disposed of so far that it is difficult to treat. Peat (5,000 Kcal / Kg) and lignite (5,000 Kcal / Kg), which were both discarded and discarded as exposed to the topsoil due to the odor of combustion, are available as main raw materials, and the pollution problem caused by industrial waste While solving the present invention, a new alternative fuel is obtained, and also, by adding an equivalent mixture of carbon and styrene monomer or ethylene monomer, especially ethylene glycol, and heating, to separate the odor from raw coal and to form solid coal, which is generated during combustion of solid fuel. Recognize that it can be used industrially useful by removing the bad smell Will.

Claims (2)

It is heated by adding deodorant to raw coal mixed with well-known industrial waste carbide, which is composed mainly of low quality anthracite coal (coal mining material or bump) and lignite (5,000 Kcal / Kg) or peat (5,000 Kcal / Kg) of 2,500 Kcal / Kg or less. The method of manufacturing a solid fuel, characterized in that it is heated for 60 minutes at 250 ℃ in a combustion furnace for 90 minutes and heated by a 170-230 ℃ hot air in a rotary chiron (10) to separate the odor and gas from the raw coal. Claim 1 Claim 1 The deodorizing agent of Claim 1 which mixes and adds the same amount of carbon, styrene monomer, or ethylene glycol in 5 W /% of a raw coal, The manufacturing method of the solid fuel characterized by the above-mentioned.

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