KR101533053B1 - Manufacturing method of solid refuse fuel using combustible waste - Google Patents

Abstract

The present invention relates to a method of manufacturing a solid fuel using flammable waste, and more particularly, to a method of manufacturing flammable waste which comprises waste synthetic resin containing no waste synthetic resin or containing waste synthetic resin within 30 wt% A flammable waste pre-treatment step (S100) including a process of selecting a non-combustible material in a combustible waste, a process of removing odor from the combustible waste from which the non-combustible material is removed, and a process of removing moisture from the combustible waste from which the odor is removed; A process of crushing the waste synthetic resin, a process of selecting a non-combustible material contained in the crushed waste synthetic resin, and a process of producing waste synthetic resin solid fuel by injecting the waste synthetic resin without the non-combustible material into a solid fuel molding machine (S200) comprising a waste synthetic resin solid fuel including the combustible waste pre-treatment And a solid fuel product manufacturing step (S300) of mixing the combustible waste through the system (S100) and the waste synthetic resin solid fuel produced to adjust the calorific value of the solid fuel (S300), and a solid fuel production method using the combustible waste Respectively.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for manufacturing SRF using flammable waste,

The present invention relates to a food waste excluding waste designated waste such as waste oil, waste acid, and medical waste; plastic; Agricultural waste vinyl; Polymer compound; Rubber; fiber; leather; abolition; Household wastes of wood including furniture; Livestock waste; Agricultural wastes including rice husks, rice bran, cornstalks, and fruit husks; Naturally occurring wastes including roadside leaves, deforestation and deforestation; Sewage sludge; Sludge; The present invention relates to a method for producing a low-emission SRF fuel capable of calorie control by removing water and removing combustible components from a waste in a workplace and mixing calorie-based products at a predetermined ratio.

With respect to the present invention, the term of the existing RDF, RPF, WCF, and TDF solid fuel products has been changed to SRF and BIO-SRF, which is delegated by the Enforcement Decree of the Act on the Promotion of Saving and Recycling of Resources, Is less than 50mm in diameter and less than 100mm in length, and nonforming is less than 50mm in width and 50mm in length, which is determined by the lower calorific value of 3,500kcal / kg or more.

Waste refers to materials that are not necessary for human life or business activities, such as waste, soft materials, sludge, waste oil, waste acid, waste alkaline, carcasses of animals, and combustible materials generated from nature. Waste from non-wastes in the workplace and wastes from the workplace shall be disposed of in accordance with the Air Quality Conservation Act, the Water Quality Environmental Protection Act, the Noise and Vibration Control Act, etc., and other wastes generated from the workplace designated by the Presidential Decree, Agricultural wastes and trees, and tree leaves. The definitions of various wastes by relevant laws are as follows.

Strengthening regulations on global warming substances such as greenhouse gases caused by the conclusion of the International Climate Change Convention ('92 .6) and the Kyoto Protocol ('97 .12) to cope with climate change is not a view point of deteriorating waste disposal conditions, At the same time, efforts to prevent the acceleration of global warming are being actively carried out in the international community by means of CDM, JI, ET, etc. based on the market principle as a realization policy of GHG mitigation by the Convention on Climate Change .

Considering global trends, the Ministry of Environment's "Comprehensive Measures to Combat Waste Energy" was released in May 2008, including the selection of combustible materials from municipal solid waste to produce solid fuels and recycling them as energy. . The comprehensive measures of the Ministry of Environment include a plan to convert about 12,000 tons of wastes per day, which are simply landfilled, into solid fuels by 2020 and convert them into thermal energy through dedicated boilers. It is necessary to review the economic feasibility of these facilities because it is claimed that it is economical because it can reduce the installation and operation cost required to produce solid fuel and can prevent the spread of odor fundamentally.

Korean Registered Patent No. 10-1275192 (Registered Date June 10, 2013) 'Waste sorting apparatus for converting combustible waste into solid fuel and solid fuel forming method using the apparatus'; Korean Patent Publication No. 2002-0015759 (published on March 02, 2002) 'Method for producing solid fuel using sewage / wastewater sludge and combustible waste and food waste'; Korean Registered Patent No. 10-0487735 (Registration date April 27, 2005) 'Smelting agent of solid fuel using flammable waste as fuel and method of manufacturing the same'; Korean Patent Laid-Open No. 10-2013-0040450 (Apr. 24, 2013) 'Method for producing solid fuel using sludge and flammable waste'; Korean Patent Laid-Open No. 10-2005-0071140 (published on July 07, 2005) 'Method for producing solidified fuel using flammable waste'; Korean Registered Patent No. 10-1207454 (Registration date Nov. 27, 2012) 'Device for manufacturing solid fuel using flammable waste and method for manufacturing the same'; Korean Registered Patent No. 10-1118162 (Registered on Feb. 13, 2012) 'Solid fuel using flammable waste and its production method'; Korean Patent No. 10-1045221 (filed on June 23, 2011) discloses a technique for producing a solid fuel of flammable waste.

However, since the conventional technologies can not control the calorie of the solid fuel, the use of the solid fuel is inefficient, the energy is too much to remove the moisture, and it is uneconomical. In the production process, There was a problem.

Korean Registered Patent No. 10-1275192 (registered on June 10, 2013) Korean Patent Publication No. 2002-0015759 (published on March 02, 2002) Korean Registered Patent No. 10-0487735 (Registered Date Apr. 27, 2005) Korean Patent Laid-Open No. 10-2013-0040450 (published on Apr. 24, 2013) Korean Patent Laid-Open No. 10-2005-0071140 (Published on July 07, 2005) Korean Registered Patent No. 10-1207454 (registered date November 27, 2012) Korean Registered Patent No. 10-1118162 (Registration date February 13, 2012) Korean Registered Patent No. 10-1045221 (registered on June 23, 2011)

The present invention relates to a method for producing a solid fuel using combustible wastes other than designated wastes, wherein calories can be controlled by mixing waste synthetic resin solid fuel having a high calorific value with municipal wastes and natural wastes having relatively low calorific values, It is an object of the present invention to provide a manufacturing method of SRF using flammable waste having high economical efficiency because odor generation and moisture removal can be efficiently performed in the process, and energy productivity can be improved.

In order to accomplish the above object, the present invention provides a method of manufacturing a semiconductor device, comprising the steps of: disposing a combustible waste containing waste synthetic resin in an amount of 30 wt%

A step of selecting a non-combustible material in the crushed combustible waste,

Removing the odor from the combustible waste from which the non-combustible material has been removed,

A flammable waste pre-treatment step (S100) including a step of removing moisture from the odor-removing flammable waste;

A step of crushing the waste synthetic resin;

A step of selecting a non-combustible material contained in the pulverized waste synthetic resin;

A step (S200) of producing a waste synthetic resin solid fuel including a step of injecting waste synthetic resin having a non-combustible material removed into a solid fuel molding machine to produce a waste synthetic resin solid fuel;

(S300) for adjusting the calorific value of the solid fuel by mixing the combustible waste through the flammable waste pre-treatment step (S100) and the waste synthetic resin solid fuel produced (S300). do.

The method of manufacturing SRF using flammable waste according to the present invention can control the calorie in manufacturing the solid fuel, thereby making it possible to manufacture solid fuel with various calories according to the required calories, , And water removal efficiency can be efficiently performed, so that the productivity of the product against energy input is excellent, which is very economical.

Since the combustible component and the calorific value are almost constant, the amount of air required for combustion can be uniformly injected, and the moisture content is maintained at 15% or less, so that the combustion is stably performed and the air pollution prevention function is provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall process diagram showing a process for producing a solid fuel using flammable waste according to the present invention. FIG.
2 is a flowchart showing a solid fuel manufacturing process using flammable waste according to the present invention.

Hereinafter, the above-described technical constitution will be described in more detail.

First, the term 'SRF' as used in the present invention is an abbreviation of 'Solid Recovered Fuel', and Article 2 (4) of the Waste Management Act (designated wastes refers to wastes such as waste oil, waste acid, Which is a hazardous substance that can give harm to human body and which is not a designated waste of the Ministry of Land, Transport and Maritime Affairs (hereinafter referred to as "waste designated by Presidential Decree"). As mentioned above, The RDF, RPF, WCF and TDF solid fuel products have been changed to SRF and BIO-SRF.

As shown in FIGS. 1 and 2, the method for manufacturing a solid fuel using flammable waste according to the present invention comprises the steps of crushing flammable waste which does not contain waste synthetic resin or is contained within 30 wt% of the total amount,

A step of selecting a non-combustible material in the crushed combustible waste,

Removing the odor from the combustible waste from which the non-combustible material has been removed,

A flammable waste pre-treatment step (S100) including a step of removing moisture from the odor-removing flammable waste;

A step of crushing the waste synthetic resin;

A step of selecting a non-combustible material contained in the pulverized waste synthetic resin;

A step (S200) of producing a waste synthetic resin solid fuel including a step of injecting waste synthetic resin having a non-combustible material removed into a solid fuel molding machine to produce a waste synthetic resin solid fuel;

And an SRF manufacturing step (S300) of mixing the combustible waste through the flammable waste pre-treatment step (S100) and the waste synthetic resin solid fuel produced to adjust the calorific value of the solid fuel.

Hereinafter, specific details of each step of the SRF manufacturing method will be described.

Flammable waste pretreatment step ( S100 )

The combustible waste refers to municipal waste that can be incinerated by using an incinerator, and includes food waste; plastic; Agricultural waste vinyl; Polymer compound; Rubber; fiber; leather; abolition; Household wastes of wood including furniture; Livestock waste; Agricultural wastes including rice husks, rice bran, cornstalks, and fruit husks; Naturally occurring wastes including roadside leaves, deforestation and deforestation; Sewage sludge; Sludge; For example, waste from the workplace.

Major components of these flammable wastes are as follows.

1) Cartons - Cartons, which are produced from natural pulp and are widely used as a raw material for toilet paper, are combustible wastes, which enable energy recovery.

2) Synthetic resin packing materials and plastic-synthetic resin materials are combustible waste containing high calorific value.

3) Tires - Waste tires are highly combustible and can be used for energy recovery purposes due to high calorific value, but they are highly recyclable waste in many forms.

4) Lubricants - Lubricants are used as auxiliary fuel in the combustion of waste with lower combustion or calorific value of the lubricating oil in facilities of intermediary processing companies because it has higher calorific value and better operation operability than other solid waste.

5) Biodegradable waste - Among the municipal waste, biodegradable waste is a typical food waste. The importance of separating and collecting food waste is not only its own recycling value but also the efficiency of recycling and post-treatment of other wastes by separating watery food waste. Among the wastes in the workplace, organic wastes such as organic sludge, organic vegetable residues, and animal manure are among the categories of biodegradability.

The flammable waste pre-treatment step is pre-treated using flammable wastes containing 30 wt% or less of total amount of wastes, even if they contain no waste synthetic resin.

This is because the heating value of the waste synthetic resin is very high. However, since the combustible waste other than the waste synthetic resin has a relatively low calorific value, the solid fuel composed of waste synthetic resin and the combustible waste containing little or no waste synthetic resin are separately treated After the final solid fuel is discharged, SRF having various heating values suitable for the purpose is produced.

FIG. 1 shows food waste in a combustible waste as an example. That is, as shown in FIG. 1, the food waste collected through the collection box in the household 101 is sequentially passed through the small storage 102 and the large storage 103, and finally the organic waste Transfer to waste disposal site.

The food waste transported by the vehicle 104 is supplied to a silo 106 through a vertical conveyor 105 and stored in a silo 106. [

When additional livestock, fish, etc. are to be added, they are stored in a separate disinfection treatment plant 107 and used for the disinfection process.

After the sterilization process, the livestock and fish are transferred from the sterilizing treatment plant 107 to the first feed conveyor 109 through the first feed conveyor 108.

The first loading conveyor 109 is connected from the silo 106 to the crusher 110 so that the food waste stored in the silo 106 and the dead livestock and fish that have undergone the sterilization process are introduced into the crusher 110 ).

The food waste introduced into the crusher 110 is crushed through the crushing process, and the crushed material is placed on the second conveying conveyor 111 and passed through the metal separator 112.

The metal separator (112) picks up the magnetic metal contained in the crushed material passing through the second conveying conveyor (111).

Next, the crushed material that has passed through the metal separator 112 is placed on the second conveying conveyor 111 and passed through the deodorizing device 113. The odor eliminating device 113 removes odors emitted through the crushed product.

There are various types of substances that cause odors, and they can not show all kinds of odors. However, organic acids, alcohols, amines, aromatic compounds, aldehydes, esters, and hydrogen sulfide can be cited. Sex, smell of perspiration, strong odor, and so on. In general, the odor inducing substance has a molecular weight of less than 300 which can be easily volatilized, and is a non-ionic compound, and has different odor characteristics depending on its molecular structure and functional groups.

As a method of removing odor, there is a method of removing or reducing a component causing a malodor, and a method of neutralizing or concealing odor by using other materials.

In the present invention, pine trees cut from pine trees and oak timber collected from food waste, livestock carcasses and hospital wastes are blended at a weight ratio of 1: 1, and then pulverized using a pulverizer. To adjust the particle size to 2 to 4 mm. Ferrous sulfate and ferric sulfate may also be mixed.

The mixed bark powder is filled along the inner wall of the deodorizing device 113 through which the second conveying conveyor 111 passes so that the amount of the food waste placed on the second conveying conveyor 111, And the smell is removed by adsorbing the odor from the mixed bark powder.

The bark is composed of 9 ~ 18% of the whole wood. The oak bark is composed of honeycomb structure. Unlike the oak, the pine bark does not develop small pores and has a dense texture. The surface area of pine and oak bark is very small, while the pore size is 200 ~ 300 Å. The oak bark has the property of raising the pH of the water from 60.06 to 6.67 while lowering the pine bark to 5.30. Due to these properties, oak bark is useful for adsorption of acidic hydrogen sulfide, and pine bark is useful for adsorption of basic ammonia.

After the deodorizing process, the crushed material is finally transferred to the third conveying conveyor 114.

The third conveying conveyor 114 may be supplied with a crushed material that has undergone the non-magnetic material sorting process through a separate fourth conveying conveyor 115 in addition to the crushed material having undergone magnetic force separation and deodorization.

The third conveying conveyor 114 is connected to the second putting conveyor 116 to transfer the crushed material to the second putting conveyor 116.

The second feeding conveyor 116 feeds the debris supplied through the third feeding conveyor 114 to the moisture removing device 117. The moisture removing apparatus 117 is a vacuum drying system, and is dried at a low temperature of 100 ° C or lower.

The moisture removal device 117 can treat a large amount of waste having a high water content in a short time, and can prevent carbonization of the dried material because it is lower than 100 ° C. And drying at a temperature ranging from 65 to 80 ° C. over a certain period of time can kill most pathogens.

However, since the heating method of vacuum drying uses an indirect heating method by conduction, a stirrer is needed in order to prevent the carbonization of the material by installing a stirrer in the vacuum chamber. The relationship between steam temperatures is very important. That is, even if the boiling point of water is 100 ° C, the pressure in the vacuum dryer is boiled even at a low temperature. As a specific example, when the absolute pressure is 150 mmHg, water boils at 60 ° C and boils at 18 ° C when the absolute pressure is 15 mmHg.

In addition, the volume of the steam generated in the drying furnace has a great influence on the drying. At 1 atmospheric pressure 100 ° C, the steam of 1 kg is 1.67 m 3, but at 7.5 mmHg, the steam of 1 kg is 70 times the pressure of 1 atm.

The moisture removing apparatus 117 according to the present invention is not limited to the use of a vacuum drying apparatus in which a stirrer is installed therein and can maintain a vacuum state of a burner or an electric heating system and is disclosed in Korean Patent No. 10-1312500 A regeneration apparatus disclosed in "Apparatus and method for generating new and renewable energy through food wastes", issued Sep. 23, 2013) may be used. However, it is characterized by vacuum drying through the following process.

The moisture removal by the vacuum drying method was performed by adding 5 to 15 wt% of pine wood sawdust having a water content of 30 to 38% and a particle size of 1.7 mm to 2.36 mm to the total amount of combustible waste,

Under the conditions of an absolute pressure of 150 mmHg and an internal temperature of 65 to 80 ° C,

When the internal temperature exceeds 90 ° C, the burner is stopped and stirred again until the internal temperature is lowered to 65 ° C,

When the internal temperature dropped to 65 占 폚, the vacuum drying apparatus was heated again by operating the burner, and vacuum drying was performed for 2 hours in the state of intermittent stirring,

After the burner is stopped, intermittent stirring is performed until the internal temperature is lowered to 35 캜.

The sawdust serves as a filling material. More specifically, pine sawdust is used. The moisture content of the sawdust is 30 to 38%. The particle size of the sawdust is in the range of 1.7 mm to 2.36 mm Quot;

The stirring for vacuum drying is preferably intermittent stirring rather than continuous stirring because the water decreasing rate during intermittent stirring is increased by about two times as compared with continuous stirring.

After the water removal process in the water removal device 117 is completed, the crushed material is supplied to the calorie adjuster 301 through the third input conveyor 118 again.

Waste synthetic resin solid fuel manufacturing stage ( S200 )

Solid fuel (RDF) is a waste treatment method that can solve the landfill regulation due to lack of landfill and environmental pollution, construction of new incinerator due to the inverse of local residents, and difficulty in operation. When RDF is converted into solid fuel, It is easy to store and transport for a long time, and it is possible to have a sufficient value as an alternative fuel because the heat application efficiency and thermal efficiency increase with a stable heat amount in a heat use facility. Almost all wastes such as general waste, plastic, agriculture waste vinyl, polymer compound, rubber, fiber, leather, waste paper, wood (furniture) and food waste can be converted into solid fuel, There is a very low generation of harmful gas and dioxin in the city. Ash after combustion is about 10% of the amount of input RDF, so it has the advantage of being highly effective in reducing garbage and having a very low heavy metal content, so that it can be recycled.

Refuse Plastic Fuel (RPF) is a product with a plastic content of 60% or more. It transports thermoplastic combustible waste among municipal and industrial wastes, It is a recycled fuel produced through crushing and molding processes.

The sorting process is a process of sorting incombustibles such as glass and metal by wind, magnetic, or man power so as to make the waste used as a raw material suitable for production and not to hinder the purpose of use.

In addition, the crushing process is a process of uniformly and finely crushing the size of the raw material so that drying and molding can be performed well. The moisture contained in the waste synthetic resin is removed by the method of not using heat, .

In addition, the molding process is a process of molding into a form that is easy to move or store in order to use a combustible material, and can be formed into various sizes according to the standard. However, in the present invention, It is molded into a cylindrical shape at 250 to 290 DEG C by using one or more kinds.

As shown in FIG. 1, the waste synthetic resin is first charged into the primary crusher 202 by using the input forklift 201, and then subjected to a primary crushing process.

The pulverized synthetic resin that has been pulverized in the primary pulverizer 202 is transferred to the disc sorter 204 through the first loading conveyor 203.

The disk discriminator 204 rotates the interdigitated disks so that small particles are separated by gaps between the disks, and the particle diameters can be adjusted by adjusting the intervals of the disks.

The waste synthetic resin that has been subjected to the sorting process in the disk sorter 204 is introduced into the secondary crusher 206 through the second input conveyor 205.

The waste synthetic resin subjected to the crushing process in the secondary crusher 206 is conveyed to the third input conveyor 208 through the first conveying conveyor 207 and the third input conveyor 207 connected to the first conveying conveyor 207. [ The conveyor 208 again supplies waste synthetic resin to the sorter 209.

The sorting unit 209 performs a secondary sorting process on the waste synthetic resin subjected to the first sorting process in the disk sorter 204.

The waste synthetic resin that has undergone the secondary sorting process through the sorting unit 209 is transferred to the sorting storage container 211 through the second conveying conveyor 210.

The sorting container 211 is used to store the waste synthetic resin that has been sorted. The waste synthetic resin thus sorted is put into the solid fuel molding machine 213 through the fourth input conveyor 212.

The solid fuel molding is divided into a screw extrusion method and a roller extrusion method. In the case of screw extruder type, the sample is solidified by the pressure output of the screw, and it is widely applied to the plastic container of the refuse disposal facility.

On the other hand, the roller extrusion method is a method of solidifying a sample by the pressure output of the roller, and is classified into a ring-die method and a flat-die method depending on the shape of a die portion.

Compared with the extruder type, the roller extrusion method has advantages such as excellent productivity of RDF, reduction of manufacturing cost, and energy efficiency. It is common that PE and PP packaging materials do not require large power for molding even when mixed with other combustible materials. Therefore, in Korea, roller extrusion method is widely applied to RDF of plastic packaging materials collected by EPR system. However, the roller extrusion method is disadvantageous in that extrusion molding is very difficult in case of a waste synthetic resin having a thick material, and when the roller is severely stopped, the roller may be stopped.

Solid Fuel Products ( SRF ) Manufacturing stage ( S300 )

In this step, SRF having various calorific values is manufactured by adjusting the calories to have an appropriate calorific value for the purpose of use by mixing a waste synthetic resin solid fuel having a high calorific value and a combustible waste having a relatively low calorific value at a certain ratio.

At this time, 1 ~ 99wt% of combustible waste and 1 ~ 99wt% of waste synthetic resin solid fuel are mixed so as not to exceed 30wt% of the total amount even if the waste synthetic resin is not included or waste synthetic resin is included, do.

At this time, as the amount of the combustible waste used increases, the calorific value decreases. On the contrary, as the amount of the waste synthetic resin solid fuel increases, the calorific value increases.

It is preferable that the combination of the SRF and the SRF is such that the minimum heating value of 3,500 kcal / kg, which is the fuel value, is kept at an average value of 5,000 kcal / kg and the heating value is 6,900 kcal / kg.

As a concrete example, when 1,000 kg of SRF for 5,000 kcal / kg is to be produced by mixing two kinds of waste synthetic resin solid fuel (8,000 kcal / kg) and food waste (3,000 kcal / kg) , And 600 kg of food waste.

That is, when the total calories of the SRFs to be produced are calculated, it can be seen that 5,000 kcal / kg × 1,000 kg = 5,000,000 kcal. In order to derive the target calorie of 5,000,000 kcal, 400 kg of waste plastic synthetic fuel and 600 kg of food waste are used.

This is calculated as 8,000 kcal / kg × 400 kg = 3,200,000 kcal for the waste synthetic resin solid fuel,

In the case of food waste, 3,000 kcal / kg × 600 kg = 1,800,000 kcal is calculated, so that the total calorie of the waste plastic synthetic fuel and the total calorie of the food waste (3,200,000 kcal + 1,800,000 kcal = 5,000 kcal) corresponds to the target calorie .

As described above, SRF of desired calorie can be easily manufactured by combining a waste synthetic resin solid fuel having a high calorific value and a combustible waste having a relatively low calorific value at a predetermined ratio.

The principle of the mixer is that the calories of two different substances are input to the control panel, and when the calories are inputted, the weight is automatically converted into the mixer by a certain amount. The principle of the mixer is also a universal technique, so the explanation is omitted.

The SRF thus manufactured is taken out through the carry-out conveyor 401 as shown in FIG. The transport conveyor 401 includes a conveyor 401a for moving to a SRF vendor, a conveyor 401b for moving to a power plant, and a conveyor 401c for moving to a sales packaging machine. Thus, the exported SRF can be variously distributed .

Since the method for producing a solid fuel using flammable waste according to the present invention can provide a solid fuel product having a selectively controlled amount of heat generated according to the purpose of use, it is possible to utilize energy efficiently, very big.

101: House 201: Input forklift
102: Small reservoir 202: Primary crusher
103: Large-capacity storage 203: First loading conveyor
104: vehicle 204: disk discriminator
105: Vertical conveyor 205: Second feeding conveyor
106: Silo 206: Secondary crusher
107: Sterilization treatment plant 207: First conveying conveyor
108: first conveying conveyer 208: third feeding conveyer
109: first input conveyer 209: selector
110: crusher 301: calorie controller
111: second conveying conveyer 401: conveying conveyer
112: Metal separator
113: Deodorizer
114: Third conveying conveyor
115: Fourth conveying conveyor
116: second feeding conveyer
117: Moisture removal device
118: Third feeding conveyor

Claims (5)

Disrupting flammable waste which does not contain waste synthetic resin or contains waste synthetic resin within 30 wt% of the total amount;
A step of selecting a non-combustible material in the crushed combustible waste,
The blended bark powder obtained by blending the shredded pine and the bark collected from the oak wood in a weight ratio of 1: 1, pulverizing it using a pulverizer, sieving and adjusting the particle size to 2 to 4 mm, Removing the odor from the waste, which adsorbs the odor from the combustible waste,
And a vacuum drying apparatus configured to remove moisture from the combustible waste from which the odor is removed, the drying apparatus having an agitator installed therein and a burner provided outside the drying apparatus,
The pine wood saw blades having a water content of 30 to 38% and a particle size of 1.7 mm to 2.36 mm were added to the total amount of combustible wastes in an amount of 5 to 15 wt%
Under the conditions of an absolute pressure of 150 mmHg and an internal temperature of 65 to 80 ° C,
When the internal temperature exceeds 90 ° C, the burner is stopped and stirred again until the internal temperature is lowered to 65 ° C,
When the internal temperature dropped to 65 占 폚, the burner was again operated to heat the vacuum drying apparatus and vacuum-dried for 2 hours under intermittent stirring,
(S100) comprising a step of stopping the burner and intermittently stirring the water until the internal temperature is lowered to 35 DEG C to remove moisture;
A step of crushing the waste synthetic resin;
A step of selecting a non-combustible material contained in the pulverized waste synthetic resin;
A step (S200) of producing a waste synthetic resin solid fuel including a step of injecting waste synthetic resin having a non-combustible material removed into a solid fuel molding machine to produce a waste synthetic resin solid fuel;
And a solid fuel product manufacturing step (S300) of mixing the combustible waste having been subjected to the flammable waste pre-treatment step (S100) and the produced waste synthetic resin solid fuel to adjust the calorific value of the solid fuel. Method of manufacturing solid fuel using.
delete delete The method according to claim 1,
(S200) Solid fuel production using flammable waste, characterized in that it is molded into a cylindrical shape at 250 to 290 ° C using one or more selected from among polyester, polyethylene, and polypropylene. Way.
The method according to claim 1,
The solid fuel product manufacturing step (S300) comprises mixing 1 ~ 99wt% of flammable waste and 1 ~ 99wt% waste synthetic resin solid fuel through the flammable waste pre-treatment step (S100) to control the calorific value using flammable waste Fuel.

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