KR20120078012A - Solid type fuel by wastes and a method of manufacturing the same - Google Patents

Abstract

PURPOSE: A combustible material using paper industry waste sludge and a method for manufacturing the same are provided to secure calories of 4500Kcal/Kg or more by mixing an additive with the paper industry waste sludge, food waste, waste lime, waste coal, and waste oil. CONSTITUTION: A method for manufacturing a combustible material using paper industry waste includes the following: dehydrated/dried paper industry waste sludge and food waste, and dried waste lime and dried coal are pulverized into particles of 100 meshes; loess, elvan, zeolite, germanium, and feldspar are pulverized into particles of 100 meshes to prepare an additive; 20 to 60 weight% of the pulverized paper industry waste sludge, 5 to 20 weight% of pulverized waste lime, 5 to 25 weight% of pulverized waste coal, 10 to 40 weight% of pulverized waste food, and 2 to 10 weight% of waste oil are mixed with 2 to 10 weight% of the additive; the 90 to 95 weight% of the mixture is kneaded with 5 to 10 weight% of seawater to produce pellet shaped combustible materials.

Description

Combustion product using paper wastewater sludge and its manufacturing method {solid type fuel by wastes and a method of manufacturing the same}

The present invention relates to a combusted product using paper wastewater sludge and a method for producing the same, and in particular, the paper wastewater sludge and food waste are dehydrated and dried at a water content of about 50%, and then pulverized to a particle size of 100 mesh or less with waste lime and waste coal. 20 to 60% by weight of the paper wastewater sludge crushed, 5 to 20% by weight of waste lime crushed, 5 to 25% by weight of waste coal crushed, 10 to 40% by weight of food waste crushed and 2 to 10% by weight of waste oil While mixing well the mixture of 2-10% by weight of additives of ocher crushed, elvan crushed, zeolite crushed, germanium crushed and feldspar crushed to about 100 mesh, and kneaded with seawater, It is made of combusted products using waste paper sludge including paper wastewater sludge which pollutes the environment due to the development of industry. Using a paper sludge to get the calories relates to combustion and the manufacturing method thereof.

In general, according to the development of the industry, a lot of resources are required, and many resources that do not reach the content in the process of producing them are classified as waste and cannot be used as waste.

However, although coal is called coal, which is generated in the process of digging coal, the coal coal village is large enough to cover the entire area, but it cannot be effectively processed.

In addition, waste fertilizer, also called waste lime produced in the process of producing fertilizer, can not be efficiently processed even though a large amount continues to occur in proportion to the amount of fertilizer production.

Similarly, there are many efforts to dispose of some food waste and waste oil, but only a few areas are being recycled, and the damage caused by waste materials is gradually increasing. There was a problem.

Accordingly, RDF (refuse derived fuel), or waste fuel, which is formed by mixing and combusting flammable waste or combustible material with food waste is proposed and used.However, a certain amount of heat can be mixed by mixing a combustible and a flame retardant that can be burned by themselves. It was not enough technology to fundamentally dispose of waste due to the limitation of waste treatment capacity and excessive production cost.

Waste paper sludge is produced in the form of dehydration and dry cake with water content (water content) of 70 ~ 85% by weight in the final process of the paper mill.At least 30% by weight and more than 70% by weight of organic matter It is contained.

Waste paper sludge has a caloric content of 2,000kcal / kg ~ 5,000kcal / kg.

As a result, organic waste paper sludge is classified as a low carbon fuel, and in Korea, about 6.5 million tons are generated (as of 2004). The government banned dumping of waste paper sludge until February 2011, and announced the principle of land treatment through recycling, and recycling technology for waste paper sludge has been attempted.

The recycling technology for waste paper sludge is a technology that is intended to be used as an alternative fuel for fossil fuels (coal or petroleum). However, waste paper sludge occupies about 70% by weight or more of water, which is a major obstacle to fuelization. In addition, even though the water content is reduced through drying, the solid content of the waste paper sludge is composed of the most volatile content and the fixed carbon content which are most important for determining the physical properties of the fuel as the ratio of the conventional coal-based fossil fuel. In combustion systems, there are many restrictions on the use of fuel.

On the other hand, in Korea, about 400 million liters of waste oil is generated annually. Waste oil has a higher recycling rate than waste paper sludge, but it is mainly recycled using refined methods, resulting in high energy costs. Waste oil purification methods include ion purification, vacuum distillation and high temperature pyrolysis. Ion purification method removes water and sediment from waste oil and removes heavy metals through chemical treatment, and decompression distillation method uses preliminary treatment to remove water and sediment from waste oil by thin film distillation or tower distillation. And heat distillation under vacuum. The high temperature pyrolysis method is a method of obtaining light oil by heating the waste oil at 450 to 500 ° C. to reduce the molecular weight of the polymer by radical reaction.

However, these purification methods consume a lot of energy and require improvement of the process.

Regarding the recycling of waste paper sludge and waste oil as described above, in recent years, in order to increase moldability, clay or sand is mixed to prepare a fuel by using conventional briquettes or briquettes, or by mixing a large amount of coke and coal to solidify the fuel. Cases are being published.

For example, Korean Patent Laid-Open Publication No. 10-1991-0001084 discloses a solid fuel prepared by mixing pulp paper sludge with paraffin wax and then adding hexamine and potassium permanganate, and Korean Patent Laid-Open Publication No. 10-1994- 0024040 shows a charcoal solid fuel prepared by compression molding machine after mixing calcium carbonate, zeolite and binder with waste such as wood, waste paper and paper sludge.

In addition, Korean Patent Application Publication No. 10-2005-0015873 discloses a plastic waste (polyethylene, polypropylene, and polystyrene resin) that is melted in small portions in a resultant product obtained by stirring waste oil (lubricating oil), waste cooking oil, and carbonate. A method of producing a calorie-raising material for producing a solid fuel, which is made of an Lloyd resin, mixed with an aluminum pulverized product and ferric oxide, and then freeze-dried to form a pulverized product, is disclosed in Korean Patent Application Publication No. 10-2008-0056352. 50 to 60% by weight of the first fuel composition formed by melting waste synthetic resin, waste oil such as waste oil such as used cooking oil and engine oil of automobile, and second fuel composition formed by mixing and extruding graphite, coal pulverized product, waste wood or sawdust 20 A solid fuel composed of 30 wt% and 10-15 wt% binder sodium silicate is shown.

In addition, Japanese Patent Laid-Open No. 56-62891 discloses a method for producing a solid fuel in which organic sludge, waste oil, and plastic waste are mixed and molded, and then lowered in water content by thermal drying, and Japanese Patent Laid-Open No. 2001-214173 No. 6 shows liquid or granular fuel prepared by adding waste oil such as waste paper diapers to heated vegetable oil, evaporating water, neutralizing and removing hydrogen chloride gas contained in the waste, and adding waste oil. .

However, the prior art including the prior patent documents are mixed with materials of different physical properties, it is difficult to meet the optimum conditions of combustion, low calorific value, various toxic substances (and air pollutants) due to incomplete combustion, etc. Non-combustible materials are added and combustion is difficult. In addition, the method of adding coal pulverized or petroleum coke pulverized as calorific reinforcement is to add calorie reinforcement to the paper sludge solids at least 1.25 times and as much as 45 times to increase the calorie content of the paper sludge, which is added to the calorie reinforcement. There is a problem in that the utilization of the waste paper sludge is reduced to form the paper sludge. In addition, in the case of using plastic waste as a binder as in Korean Patent Application Publication No. 10-2005-0015873 and Japanese Patent Application No. 56-62891, etc., toxic substances (and air pollutants) such as dioxin, chlorine and sulfur during combustion are used. There is a problem in that it does not satisfy the conditions to be provided as solid fuel (related to Article 25-3 (2) of the Act on Resource Conservation and Recycling Promotion) due to the large amount of emissions.

On the other hand, when molded and dried in a state where waste oil and water (water contained in waste paper sludge) are mixed, evaporated water passes through the oil film of waste oil to generate a huge amount of bubbles. Specifically, heat is supplied during extrusion (compression) molding and drying, where moisture is evaporated by heat to generate bubbles. However, the prior art including the prior patent documents do not take the technical means for preventing the bubble, it is difficult to extrude (compress) by the generation of bubbles in the extrusion (compression) molding process, the formability of the product (solid fuel) Maintainability) is lowered, there is a problem that voids are formed after drying. In addition, the conventional solid fuel does not consider the optimization of the raw material content and the bubble prevention (preventing the formation of voids) is pointed out a problem that the physical properties (strength, etc.) of the product is lowered, difficult to handle. That is, it is difficult to handle due to the generation of dust due to cracks during storage and transportation of the solid fuel due to the strength decrease.

Therefore, Patent Application No. 10-2009-0005524 dated January 22, 2009 (solid fuel using waste paper sludge and waste oil and its manufacturing method) was proposed.

This includes waste paper sludge, waste oil, a binder and an anti-foaming agent, and includes a mixture containing 5 to 40 parts by weight of waste oil, 3 to 20 parts by weight of the binder and 0.1 to 5 parts by weight of the antifoaming agent, based on 100 parts by weight of the waste paper sludge solids. A first step of manufacturing;

A second step of molding the mixture prepared in the first step into a semi-solid molded body;

It was configured to include a third step of drying the semi-solid molded body formed in the second step to a moisture content of 0.01 to 10% by weight.

The solid fuel using the waste paper sludge and the waste oil as described above and the method of manufacturing the same are used only to combustible materials of organic waste such as waste paper sludge or waste oil, so that the flame retardant waste cannot be separately processed.

Accordingly, the present invention is to solve the conventional problems as described above, after dewatering and drying the paper wastewater sludge and food waste to about 50% water content and then crushed to a particle size of 100 mesh or less with waste lime and waste coal after the 20 to 60% by weight of paper wastewater sludge crushing, 5 to 20% by weight of waste lime crushing, 5 to 25% by weight of waste coal crushing, 10 to 40% by weight of food waste crushing, and 2 to 10% by weight of waste oil The mixture of 2-10% by weight of additives of ocher crushed, elvan crushed, zeolite crushed, germanium crushed and feldspar crushed, each of which was pulverized to about 100 mesh, was kneaded with seawater and formed into a pellet-like combustion product. Paper wastewater sludge manufactured by burning products using paper wastewater sludge that pollutes the environment due to the development of the industry, and obtains more than 4500Kcal / Kg of heat during combustion The combustion products and to provide a method of manufacturing the same for that purpose.

Combustion product using the papermaking wastewater sludge of the present invention and its manufacturing method for achieving the above object,

Dewatering and drying the paper wastewater sludge in a dehydrator and dryer at a water content of less than 50%;

Dehydrating and drying the food waste to less than 50% water content in the dehydrator and dryer,

Drying the waste lime in a dryer,

Preparing a paper wastewater sludge pulverized product by grinding the paper wastewater sludge to about 100 mesh in a mill;

Preparing a food waste pulverized product by pulverizing the food waste at about 100 mesh in a crusher;

Pulverizing the dry waste lime to about 100 mesh to prepare a waste lime crushed,

Pulverizing the waste coal to about 100 mesh to produce a waste coal pulverized,

Crushing the loess to about 100 mesh to produce the loess crushed,

Pulverizing the elvan rock to about 100 mesh to manufacture the elvan rock crushed,

Grinding the zeolite to about 100 mesh to prepare a zeolite pulverized product,

Crushing germanium to about 100 mesh to produce germanium crushed powder and

Pulverizing feldspar to about 100 mesh to produce feldspar pulverized material,

A process of preparing an additive by mixing the above-mentioned ocher crushed, elvan pulverized, zeolite pulverized, germanium pulverized and feldspar pulverized in the same amount;

20 to 60% by weight of the paper wastewater sludge pulverized product, 5 to 20% by weight waste lime crushed product, 5 to 25% by weight waste coal pulverized product, 10 to 40% by weight food waste pulverized product and 2 to 10% by weight waste oil Preparing a mixture by mixing 2 to 10% by weight of additives of ocher crushed, ganban stone crushed, zeolite crushed, germanium crushed and feldspar crushed, each of which is pulverized to about 100 mesh with good mixing;

The above mixture is kneaded with sea water to form pellets in the form of pellets in a pellet forming machine to produce combustion products using waste such as paper wastewater sludge that pollutes the environment due to the development of the industry to obtain more than 4500 Kcal / Kg of heat during combustion. It is characterized by the configuration so that it can be.

The combusted product using the papermaking wastewater sludge of the present invention as described above and the manufacturing method thereof are ground to about 100 mesh, respectively, dehydrated and dried paper wastewater sludge and food waste, dried waste lime and waste coal, respectively,

Crush the loess, elvan, zeolite, germanium and feldspar to about 100 mesh,

20 to 60% by weight of the paper wastewater sludge pulverized product, 5 to 20% by weight waste lime crushed product, 5 to 25% by weight waste coal pulverized product, 10 to 40% by weight food waste pulverized product and 2 to 10% by weight waste oil The mixture was prepared by mixing 2-10 wt% of the additives of the loess pulverized, ganbanite crushed, zeolite crushed, germanium crushed and feldspar crushed, each of which was ground to about 100 mesh with good mixing.

The mixture is kneaded while pouring 5-10 wt% of seawater into 90 to 95 wt% of the mixture to form a pellet in the form of a combustion product, which can be used as a combustion product such as general coal or anthracite coal.

1 is a schematic diagram illustrating a manufacturing process of the present invention.

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

The production method of the combustion product using the papermaking wastewater sludge according to the present invention,

Dewatering and drying the paper wastewater sludge in a dehydrator and dryer at a water content of less than 50%;

Dehydrating and drying the food waste to less than 50% water content in the dehydrator and dryer,

Drying the waste lime in a dryer,

Preparing a paper wastewater sludge pulverized product by grinding the paper wastewater sludge to about 100 mesh in a mill;

Preparing a food waste pulverized product by pulverizing the food waste at about 100 mesh in a crusher;

Preparing the waste lime grind by pulverizing the dry waste lime to about 100 mesh in a grinder,

Pulverizing the waste coal in the crusher to about 100 mesh to produce the waste coal pulverized,

Crushing the loess to about 100 mesh to produce the loess crushed,

Pulverizing the elvan rock to about 100 mesh to manufacture the elvan rock crushed,

Grinding the zeolite to about 100 mesh to prepare a zeolite pulverized product,

Crushing germanium to about 100 mesh to produce germanium crushed powder and

Pulverizing feldspar to about 100 mesh to produce feldspar pulverized material,

A process of preparing an additive by mixing the above-mentioned ocher crushed, elvan pulverized, zeolite pulverized, germanium pulverized and feldspar pulverized in the same amount;

20 to 60% by weight of the paper wastewater sludge pulverized product, 5 to 20% by weight waste lime crushed product, 5 to 25% by weight waste coal pulverized product, 10 to 40% by weight food waste pulverized product and 2 to 10% by weight waste oil While mixing well, the additives of ocher crushed, elvan crushed, zeolite crushed, germanium crushed, and feldspar crushed, each of which is crushed to about 100 mesh, are kneaded with 2-10% by weight, and formed into pellet-shaped moldings through a pellet forming machine. Process,

It is composed of the process of drying the molding to produce a combustion product.

The production method of the combustion product using paper wastewater sludge according to the present invention as described above,

The paper wastewater sludge is dewatered at a moisture content of 60 to 70% in the first dehydrator and then dried again to less than 50% in a first dryer.

The food waste is dehydrated at a moisture content of 60 to 70% in the second dehydrator and then dried again to less than 50% in the second dryer.

Waste lime is dried in a third dryer.

The paper wastewater sludge is pulverized in a first mill to about 100 mesh to prepare paper wastewater sludge crushed products.

The food waste is ground to about 100 mesh in a second mill to prepare a food waste pulverized product.

The dry waste lime is pulverized in a third mill to about 100 mesh to prepare waste lime grind.

Waste coal is pulverized in a fourth mill to about 100 mesh to produce waste coal pulverized product.

The ocher is pulverized in a fourth mill to about 100 mesh to produce an ocher pulverized product.

Elvan rock is pulverized in a fourth mill to about 100 mesh to produce a lamellar grinding.

Zeolite is ground in a fourth mill to about 100 mesh to prepare a zeolite pulverized product.

The process of manufacturing germanium stone pulverized by grinding germanium to about 100 mesh in the fourth mill and

Feldspar is prepared by grinding feldspar to about 100 mesh in a fourth mill.

The ocher pulverized product, elvan pulverized product, zeolite pulverized product, germanium pulverized product and feldspar pulverized product are mixed in the same amount in a first mixer to prepare an additive.

20 to 60% by weight of the paper wastewater sludge pulverized product, 5 to 20% by weight waste lime crushed product, 5 to 25% by weight waste coal pulverized product, 10 to 40% by weight food waste pulverized product and 2 to 10% by weight waste oil The mixture is prepared by mixing 2 to 10% by weight of the additives of the loess crushed, gantholite crushed, zeolite pulverized, germanium pulverized and feldspar pulverized with about 100 mesh with good mixing in a second mixer.

90 to 95% by weight of the mixture is kneaded while pouring 5 to 10% by weight of seawater into a kneader to form a molding in pellet form through a pellet molding machine.

The molded product is dried in a fourth dryer and manufactured as a combusted product, so that the calcined product may be manufactured using combustible wastewater sludge that pollutes the environment due to industrial development, so that calories of 4500 Kcal / Kg or more may be obtained during combustion.

Claims (2)

Dewatering and drying the paper wastewater sludge in a dehydrator and dryer at a water content of less than 50%;
Dehydrating and drying the food waste to less than 50% water content in the dehydrator and dryer,
Drying the waste lime in a dryer,
Preparing a paper wastewater sludge pulverized product by grinding the paper wastewater sludge to about 100 mesh in a mill;
Preparing a food waste pulverized product by pulverizing the food waste at about 100 mesh in a crusher;
Preparing the waste lime grind by pulverizing the dry waste lime to about 100 mesh in a grinder,
Pulverizing the waste coal in the crusher to about 100 mesh to produce the waste coal pulverized,
Crushing the loess to about 100 mesh to produce the loess crushed,
Pulverizing the elvan rock to about 100 mesh to manufacture the elvan rock crushed,
Grinding the zeolite to about 100 mesh to prepare a zeolite pulverized product,
Crushing germanium to about 100 mesh to produce germanium crushed powder and
Pulverizing feldspar to about 100 mesh to produce feldspar pulverized material,
A process of preparing an additive by mixing the above-mentioned ocher crushed, elvan pulverized, zeolite pulverized, germanium pulverized and feldspar pulverized in the same amount;
20 to 60% by weight of the paper wastewater sludge pulverized product, 5 to 20% by weight waste lime crushed product, 5 to 25% by weight waste coal pulverized product, 10 to 40% by weight food waste pulverized product and 2 to 10% by weight waste oil Preparing a mixture by mixing 2 to 10% by weight of additives of ocher pulverized powder, elvan pulverized powder, zeolite pulverized powder, germanium pulverized powder and feldspar pulverized, each of which is pulverized to about 100 mesh with good mixing;
The process of kneading while pouring 5 to 10% by weight of seawater to 90 to 95% by weight of the mixture to form a molding in the form of pellets through a pellet molding machine,
A method for producing a combusted product using paper-making wastewater sludge, characterized in that the molding is dried to produce a combusted product. Dehydrated and dried paper wastewater sludge with about 50% water content, food waste, dry waste lime and waste coal, and crushed to a particle size of less than 100 mesh,
An additive is prepared by mixing the same quantity of ocher powder, ganban stone powder, zeolite powder, germanium stone powder and feldspar powder, respectively, which are ground to 100 mesh or less.
30 to 50% by weight of the paper wastewater sludge crushed, 10 to 15% by weight of waste lime crushed, 10 to 20% by weight of waste coal crushed, 20 to 30% by weight of food waste crushed and 3 to 7% by weight of waste oil A mixture was prepared by mixing 2 to 5% by weight of additives of ocher crushed powder, ganban rock crushed powder, zeolite pulverized powder, germanium crushed powder and feldspar crushed powder, respectively.
Combustion product using papermaking wastewater sludge, characterized in that the mixture was kneaded while pouring 5-10% by weight of sea water in 90 to 95% by weight of the mixture, and then formed into a molded product in the form of pellets and dried.

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