KR101457402B1

KR101457402B1 - Biomass pellet manufacturing method using

Info

Publication number: KR101457402B1
Application number: KR1020130034219A
Authority: KR
Inventors: 고종성
Original assignee: 고종성
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2014-11-04
Also published as: KR20140119907A

Abstract

According to the present invention,
The waste, the clothes, the waste paper, and the waste synthetic resin are cut and ground at intervals of 10 cm, the cut and the pulverized waste are prepared in a proportion of 10% by weight based on the total weight, (10), wherein the primary mixture is mixed in a ratio of 30% by weight based on the total weight of the hair, A second mixing step (S30) in which graphite is mixed in a ratio of 50% by weight with respect to the total weight and 10% by weight with the weight of loess, in a primary mixture which has been stirred by the primary stirring step, A second mixing step (S40) of mixing the first mixture with the second mixture by the second mixing step, an asphalt injection and mixing step of mixing the mixture obtained through the second mixing step with 100 占 폚 asphalt, and Stirring step (S50), mixing the asphalt stock (S60) of applying a deasphalted oil by applying a deasphalted oil by mixing graphite and an asphalt oil by extruding the mixture through an extruder, the deasphalted oil application and extrusion step And a cutting step (S70) of cutting the solidified pellet through the extrusion step.
It is possible to manufacture pellet-type solid fuel for fueling by using biomass, which is food wastes, old clothes, manure discharged from households, manure discharged from animals and industrial wastes such as sawdust, rice hulls and waste woods And a method for producing pellets using the biomass, which can increase the thermal efficiency and the ignitability of the solid fuel produced from the solid fuel, and has an effect of obtaining pellets excellent in combustion efficiency.

Description

TECHNICAL FIELD The present invention relates to a biomass pellet manufacturing method using biomass,

The present invention relates to a pellet for producing a pellet which is a solid fuel using biomass consisting of food waste discharged in large quantities in general households or restaurants, manure such as excrement produced from human beings and livestock animals, And a manufacturing method thereof.

As energy and environmental problems become more widespread, there is a growing interest in biomass that can replace fossil fuel resources.

In addition, due to the seriousness of global environmental problems, the Kyoto Protocol, adopted at the Third Conference of the Parties to the Convention on Climate Change (COP3), came into effect and identified the reduction of greenhouse gas emissions and the depletion of future fossil fuels. As a result of the Kyoto Protocol becoming effective, governments and corporations are taking a more active step toward securing alternative technologies and resources in order to reduce greenhouse gas emissions. Biomass resources such as garbage, grain, agricultural byproducts, etc., which are common in Korea, are emerging as a practical alternative to solve energy and environmental problems.

These biomass are collectively referred to as organic matter in nature. Biomass is a representative resource that mankind has long used for food, energy, building materials, and daily necessities. However, it has not been well valued for fossil fuels such as petroleum, which can be conveniently and cheaply manufactured to various products.

But in recent years the situation has started to change rapidly. Already, the supply of ethanol for fuel extracted from corn or sugarcane has been shortage, and biodiesel obtained by processing grain seeds or waste cooking oil is growing rapidly in Europe.

In addition, biomass is estimated to have potential to replace not only renewable energy but also various petrochemical-based products. Some say biomass resources are the only "ground resources" that can replace 'underground resources' such as oil and coal.

Examples of such biomass include a variety of microorganisms such as plants and animals, by-products of various human activities, or trash. Examples of such biomass include cereals, wood (waste wood, logging), animal manure, food waste, organic sewage / waste water sludge This can be seen as a representative biomass. At this time, waste wood is mainly recycled as fuel, and manure and food waste are mainly recycled as fertilizer.

On the other hand, a large amount of moisture is contained in biomass (for example, waste wood, sludge, etc.) and waste paper sludge. For example, in the case of waste wood, at least 20% by weight is moisture, and in the case of waste paper sludge, at least 70% by weight is moisture as described above. Accordingly, in order to recycle the waste wood, waste paper sludge and the like as a solid fuel, the pulverization process and the dehydration process must be performed. Dehydration can be performed by a dehydrator, hot air drying (or naturally drying), etc. However, such a method has a limitation in lowering the water content and takes a longer time.

In addition, since the raw biomass has a very high porosity inside the material, it has a problem that the transportation efficiency is low and the amount of heat generation is low because of a large volume.

As a method for utilizing such a biomass, there are known pellet manufacturing technology, ogalite manufacturing technology and the like in addition to the conventionally known carbide baking, and pellets and augarite can be produced by dehydrating And can be regarded as a consolidated fuel having improved transportability and combustibility.

However, these wood-based biomass solid fuels according to the prior art are hardly sufficient to have a sufficient calorific value as compared with coal coke, and are not sufficient for hardness performance. Therefore, when producing castings or mixing and burning with coal coke in steel making It is difficult to exhibit the function as a substitute coke because it is destroyed / burned without enduring the environment in the furnace.

Among biomass, biomass that is not used unfavorably because it is not suitable for use as a solid fuel, such as a large amount of moisture and a large pore, as compared with woody biomass, for example, herbaceous biomass (grass, sunflower Etc.) and food waste biomass (beans, rice hulls, etc.) exist, and a method for effectively utilizing such biomass is sought.

It is an object of the present invention to provide a pellet which is produced from a solid fuel which is pelletized without disposal of food waste, flour, animal manure, rice husks, sawdust, waste woods and the like discharged in daily life, .

According to an aspect of the present invention,

The waste is prepared by cutting and pulverizing waste wood, clothes, waste paper, and waste synthetic resin at intervals of 10 cm, preparing the waste at a ratio of 10% by weight based on the total weight of the waste, A primary mixing step of mixing the manure in a proportion of 30% by weight based on the total weight,

A primary stirring step in which the primary mixture mixed by the primary mixing step is heated and stirred at a temperature of 80 DEG C in steam heating,

A secondary mixing step of mixing graphite in a proportion of 50% by weight of the total weight and 10% by weight of loess to the primary mixture which has been stirred by the primary stirring step,

A second mixing step of mixing the first mixture by the second mixing step, a second mixing step of mixing the first mixture,

An asphalt injection and stirring step of injecting and mixing asphalt of 100 ° C into the mixture after the secondary stirring step,

An asphalt oil application and extrusion step of extruding the mixture through the asphalt injection and stirring steps using an extruder and applying deasphalted oil by mixing graphite and deasphalted oil to the tip side of the extrusion die,

And a cutting step of cutting the solidified pellets through the deasphalting and extrusion step.

According to the present invention, it is possible to produce pellet-shaped solid fuels for fueling by using biomass, which is food wastes discharged in daily life, old clothes, timber and manure, manure discharged from animals, and industrial wastes such as sawdust, rice hull, The solid fuel produced therefrom can be improved in thermal efficiency and ignitability, and the pellet having excellent combustion efficiency can be obtained.

1 is a flowchart of the process of the present invention.

Hereinafter, preferred embodiments of the present invention will be described.

As shown in FIG. 1, the primary mixing step S10, the primary stirring step S20, the secondary mixing step S30, the secondary stirring step S40, the asphalt injection and stirring step S50, , A deasphalted oil application and extrusion step (S60), and a cutting step (S70).

In the primary mixing step S10, waste wood, clothes, waste paper, and waste synthetic resins (collectively referred to as waste in the present invention) are collected and cut at intervals of 10 cm using a cutting device or the like, And the waste having been subjected to the crushing cutting and crushing process is prepared at a ratio of 10% by weight based on the total weight.

Next, 30% by weight of food waste, crushed bone, hairs, flour, manure are added to the cut and crushed wastes to prepare a mixture.

The primary stirring step (S20) means a step in which the primary mixture mixed by the primary mixing step is heated and stirred at a temperature of 80 DEG C in the steam heating.

In this stage, the heating through the heating of the steam enables the adsorption between the primary mixture to be performed well at the same time as stirring.

The secondary mixing step (S30) is a step of mixing the primary mixture, which is stirred by the primary stirring step, with graphite in a ratio of 50% by weight of the total weight and 10% by weight of the loess, .

By mixing the graphite and the loess with the primary mixture obtained by the primary stirring step, the adsorption efficiency can be increased.

The second stirring step (S40) is a step of stirring the primary mixture with the secondary mixture mixed by the secondary mixing step, and heating the mixture in the secondary stirring step (S40) It would be desirable to heat the steam while maintaining the temperature.

The asphalt injection and stirring step (S50) refers to a step of injecting and mixing asphalt at 100 DEG C into the mixture which has undergone the secondary stirring step.

Currently, the manufacture of asphalt pavement materials is tedious, expensive, and requires a significant amount of energy to heat the liquid asphalt and maintain the temperature of the liquid asphalt. HMA is produced by heating the asphalt binder to reduce its viscosity and heating to remove moisture from the aggregate prior to mixing. When the asphalt is in a vessel that is not maintained at a high temperature, the asphalt requires additional energy to heat it to cure and mixable hardness. Mixing is generally carried out with the aggregates at about 300 경우 (about 150 캜) for pure asphalt, 330 ℉ (캜) for polymer modified asphalt, and 200 ℉ (95 캜) for asphalt cement. Packaging and compaction should be carried out with sufficient heating of the asphalt.

Wherein the asphalt pavement material comprises finely divided materials primarily as aggregates or fillers. Aggregates or fillers can be used in any form of the asphalt composition and are selected according to the grade, strength, roughness and stability of the asphalt pavement material.

Aggregates may include a variety of materials of varying shapes and sizes, examples of agglomerates include lime, quicklime, sand, gravel, crushed stone, slag, recycled concrete, and the like. One example is a mineral filler which is a very fine, inert material added to asphalt such as hotmix asphalt to improve the density and strength of the mixture. Examples of mineral fillers may include rock powders, slag powders, slaked lime, hydraulic cements, fly ash, fibers, and the like.

In this step, the packing material grade asphalt is injected into the mixture through the secondary agitation step and agitated to increase the heat efficiency and the agitation.

The asphaltene oil application and extrusion step (S50) comprises: applying the asphaltene oil by mixing the graphite and deasphalted oil to the tip of the extrusion die by extruding the mixture through the asphalt injection and stirring steps using an extruder to be.

When the deasphalted oil is mixed with graphite, a mixture of deasphalted oil and graphite having a viscosity at the tip of the extrusion die is supplied to the extrusion die by black adsorption with deasphalted oil. In this process, solidification And deasphalted oil and graphite are supplied to the outer surface of the extruded pellets, and the outer surface of the pellets is applied to obtain the completed solid fuel.

As described above, the mixture of graphite and deasphalted oil is coated on the outer surface, discharged through an extrusion die, and then cut to an appropriate size (S60) to obtain a finished pellet.

S10; Primary mixing step
S20; Primary stirring step
S30; Secondary mixing step
S40; Secondary agitation step
S50; Asphalt injection and stirring steps
S60; Deasphalted oil application and extrusion step
S70; Cutting step

Claims

The waste, the clothes, the waste paper, and the waste synthetic resin are cut and ground at intervals of 10 cm, the cut and the pulverized waste are prepared in a proportion of 10% by weight based on the total weight, A primary mixing step (S10) of mixing the hair and manure at a ratio of 30% by weight to the total weight,
A primary agitation step (S20) in which the primary mixture mixed by the primary mixing step is heated and stirred at a temperature of 80 DEG C in steam heating,
A second mixing step (S30) in which graphite is mixed in a proportion of 50% by weight of the total weight and 10% by weight of loess, in the primary mixture, which is stirred by the primary stirring step,
A second mixing step of mixing the first mixture by the second mixing step, a second mixing step (S40) of stirring the first mixture,
An asphalt injection and stirring step (S50) of injecting and mixing asphalt of 100 deg. C into the mixture after the secondary stirring step,
A step of applying and extruding deasphalted oil to apply deasphalted oil by mixing graphite and asphalt oil to the tip of the extrusion die by extruding the mixture through the asphalt injection and stirring steps using an extruder,
And a cutting step (S70) of cutting the solidified pellets through the deasphalting and extrusion step (S70).