KR101571171B1 - The carbonization solid fuel manufacture method of MBT sorting combustible wastes and device - Google Patents

Abstract

The present invention relates to a method and an apparatus for producing a carbonized solid fuel through a carbonization process and a fuelification process for a combustible waste selected from a pretreatment (MBT) facility, wherein the combustible waste is converted into a solid fuel (RDF) And to provide a method and an apparatus for manufacturing carbonized solid fuel which can diversify a method of recovering waste energy through a dedicated RDF power generation facility alone.

The solution is to homogenize the characteristics of the combustible waste through the carbonization process and to adjust the fuel cost to be similar to that of coal (coal), thereby making it possible to utilize coal as a substitute fuel for coal at thermal utilization facilities such as coal- .

In addition, since the potential energy of the combustible waste is generated by the pyrolysis gas and the carbide in the carbonization, the carbide and the pyrolysis gas are brought into contact with each other in the fueling process so as to reduce the calorific value of the carbide, And a method and an apparatus for producing a carbonized solid fuel having a high heating amount by causing a gas component to transfer to a carbide.

Screening facilities, flammable waste, carbonization, fuel conversion, fuel quality assessment

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for producing a carbonized solid fuel of combustible wastes,

The present invention relates to a method of producing a carbonized solid fuel by burning and firing a combustible waste selected from a municipal solid waste or a municipal solid waste through a pretreatment facility, The present invention relates to a method and an apparatus for producing a carbonized solid fuel which can be used not only in a power generation facility but also in other heat utilization facilities.

      In recent years, in order to diversify the disposal method from the simple incineration or landfilling of municipal wastes to minimize the final disposal amount of wastes and to increase the resource recovery through the conversion of flammable wastes into solid fuel, a mechanical biological treatment (MBT ) Is introduced.

      This means that more than 60% of the combustible waste that can be recycled is buried, and the remaining amount of landfill in the country is only 10 years from now, and the incineration amount of the large municipal waste incineration facility is increased due to the increase in the amount of waste generated by separation and discharge of food waste. (Stalker) is weak in response to changes in waste heat generation and simple mixed combustion of wastes can not efficiently recover the potential energy of combustible wastes. This led to the introduction of MBT facilities .

      In addition, despite the fact that the recycling infrastructure is insufficient and waste reduction is limited despite the enforcement of the waste amount system and the EPR system, it became necessary to introduce a new municipal waste treatment system in accordance with the resource recycling policy.

     According to this necessity, the feasibility study of the MBT facility was conducted and it was found that the selected combustible waste was converted into Refuse Derived Fuel (RDF) The burning of the firing furnace or the RDF itself is superior to the conventional incineration method in terms of environmental performance, technological efficiency and economy.

      However, when RDF is used as fuel for cement kiln, there is a problem that the fuel property is not homogenized and the fuel cost is low. Further, since the chlorine content is a problem, it is common to mix the slaked lime components during the molding in the manufacturing process, but this may cause the reduction of the calorific value of the solid fuel. In this case, when RDF is used, energy recovery is achieved only through RDF development.

      In order to solve this problem, according to the invention of the reference 1, it is possible to expand the utilization facility as a homogenized fuel by using the carbonaceous material produced by carbonizing RDF as a solid fuel by eluting the chlorine component through a desalination device. However, compared with the amount of RDF itself, the amount of volatilization of the solid fuel is reduced due to the conversion of the volatile component into carbon dioxide. This is the case where the carbonization condition is operated by low-temperature carbonization in order to maximize the calorific value. This has become a problem.

      In addition, in the invention of the reference 2, the carbonized RDF is subjected to wet grinding in order to efficiently desalinate the salt component in the solid fuel, or the powdery carbide produced after the carbonization and desalting as in the invention of the reference 3 is compressed Although the problem of scattering and safety are solved, the problem of reducing the amount of heat remains.

     Conventional literature information

[Patent Document 1] JP P3506893 2003.12.26, page 2 [0003] to [0006] 7 to 50 lines

[Patent Document 2] JP P3530001 2004.03.05, page 2 [0005] to [0006] 39 to 2 lines

[Document 3] JP P3919572 2007.02.23, page 2 15-34 lines

      In order to solve the above-mentioned problems, the present invention provides a method of separating flammable waste selected from MBT facilities into municipal wastes such as municipal wastes, The pyrolysis gas is contacted in a separate fueling facility, and the condensable gas component is transferred to the carbide, so that safety measures such as the heating value increase and spontaneous ignition can be taken. It is an object of the present invention to provide a method and apparatus for producing a carbonized solid fuel of combustible waste which can be utilized not only as a dedicated power generation facility but also as a coal alternative fuel for a coal thermal power plant, a cement burning furnace, a paper factory, and other heat utilization facilities.

In order to achieve the above object, the present invention can be achieved by producing a carbonized solid fuel through a carbonization process and a fueling process for a selective combustible waste.

The method of claim 1, wherein the carbonization step comprises: constituting the selective combustion wastes by supplying, crushing, mixing with recycled carbides, calcining, carbonizing, cooling, crushing and sorting the carbides produced by the burning step; A step of transferring a condensable gas component in the pyrolysis gas to a carbide through a crystallization step of transferring the pyrolysis gas directly to a process of contacting the pyrolysis gas, Fueling stage.

More specifically,

Since the food waste is thoroughly separated and discharged by the prohibition of the direct landfilling of the food waste which is implemented by the domestic waste management policy during the carbonization step, the content of the food and beverage in the waste to be selected in the MBT facility is minimized (MBT) facility. Therefore, the low calorific value such as food wastes and the incorporation of chlorine components are completely blocked. These flammable wastes are targeted.

In the crushing and mixing process, the crushing process is cut or crushed to less than 60 mm in order to smoothly operate the screening process and the carbonization process. In the mixing process, the crushed and selected carbides generated in the carbonization furnace are screened 10 to 50% of the weight of the carbide 100 is circulated and mixed with the crushed combustible waste. This is because the carbide powder or granular material is uniformly mixed with the crushable combustible waste, thereby minimizing the void space And is a process for efficiently performing heat transfer at the time of carbonization.

The depressurization process is not a high-pressure compression process like existing RDF manufacture, but a pretreatment process for minimizing the oxygen concentration inside the carbonization carbonization furnace. If the impregnation process is carried out into the carbonization furnace without crushing, The carbonization efficiency is lowered. This is because the ratio of the carbon component to the carbide is increased only in the carbonization process proceeding in the anaerobic or hypoxic state, and the characteristic of the pyrolysis gas generated in the carbonization process is not the oxide form, but the combustible gas component such as hydrocarbons of high calorific value, Therefore, it is necessary to perform the sensitization process in order to satisfy this requirement.

The carbonization process is an exothermic carbonization process mainly using a rotary type and uses non-condensable gas as a fuel among external fuels such as city gas and light oil and pyrolysis gas generated by carbonization. The carbonization conditions are pyrolysis gas and carbide The production yield of carbide is 10 ~ 60wt%, the fuel ratio is more than 0.5 and the volatile content is 40 ~ 40wt% compared to the reduced product by carbonization within 20 ~ 60 minutes at 400 ~ 600 ℃ in consideration of production yield, % Gas phase.

The carbide generated at the carbonization temperature (400 to 600 ° C) and the time (20 to 60 minutes) is slightly lower than the high temperature carbonization (600 to 800 ° C) in pore (or specific surface area) development, The adsorption property due to cooling is lost and it is not suitable for high calorific value which is a feature of the present invention. In addition, it is more developed than low-temperature (200 to 400 ° C) carbonization, and provides surface area and surface characteristics for adsorbing condensable gas of pyrolysis gas. Since pyrolysis gas composition also has adsorption property of volatile matter, 600 ° C) carbonization condition is preferable. On the other hand, since the low temperature carbide has a small pore (specific surface area) development, the condensable gas component is limited to adsorption to the carbonized solid fuel even by contact with the pyrolysis gas, which is a feature of the present invention, There is also a problem in handling. On the other hand, the carbide produced in the present carbonization process can be efficiently adsorbed on the inside and the surface of the carbonized solid fuel because the pores and the specific surface area are developed and the condensable gas component in the pyrolysis gas can be adsorbed uniformly on the surface.

In the cooling process, cooling by an indirect cooler accelerates the oxidation reaction with the air (oxygen) of the carbonized solid fuel manufacturing process when the temperature of the carbonized material itself is high, so that spontaneous ignition due to self-heating is likely to occur in a short time high. Therefore, the possibility of ignition is suppressed by cooling to 150 ° C or less through the indirect cooler. In addition, when the surface temperature of the carbide is high at the time of contact adsorption with pyrolysis gas in the fueling facility, a phenomenon of being desorbed without adsorption occurs.

The pulverizing step is a step of pulverizing the cooled carbide and a step carried out to improve gas-solid contact reactivity in a fueling facility described later. On the other hand, since the pulverizing process may cause a pyrolysis phenomenon when pulverizing the carbide, it must be carried out after the cooling (indirect cooling) process, and it can be prevented by injecting steam at the pulverization. This is because when the porous carbon material is crushed by pulverization, it is necessary to consider in terms of safety such as possibility of ignition, especially in the case of pulverizing the porous carbon material. Therefore, it is necessary to inject steam to secure safety and prevent generation of scattered dust.

The sorting process is selected in the MBT process, but may include some non-combustible materials such as metals. Therefore, metals and non-combustible materials are recovered from crushed carbides through magnetic force, eddy current, wind force sorting, and the like.

In addition, the fuel quality evaluation process during the fueling step constituting the present invention determines whether or not the carbide produced in the carbonization step satisfies the quality standard of solid fuel (RDF standard) derived from domestic waste such as chlorine component, sulfur content, and heavy metal content The evaluation process is carried out. The quality standard is dry-base, mercury (Hg) is 1.2mg / kg or less, cadmium (Cd) is 9.0mg / kg or less in case of heavy metals, less than 2wt% , Lead (Pb) should be less than 200mg / kg, and arsenic (As) should be less than 13mg / kg.

If the above evaluation items and criteria are satisfied, it is directly transferred to the adsorption apparatus for contacting the pyrolysis gas and the carbide, and if not satisfactory, desalination is performed through the cleaning apparatus to elute the chlorine component, the sulfur component and the heavy metal component . Thereafter, dewatering and drying are carried out and transferred to the adsorption device. In other words, the fuel quality evaluation process aims at preventing and evaluating salts and heavy metal components that may be a problem when using fuel, and it is not intended to perform desalination uniformly, .

The adsorption process is advantageous in that carbide is used as a substitute fuel for coal due to homogenization of properties and optimization of fuel cost compared to RDF, which is a conventional solid fuel product. However, since the combustible fraction is converted into pyrolysis gas in the carbonization process, Has a disadvantage in that it is inevitably lowered. The process for improving this is characterized in that a viscous component such as tar, which is a condensable gas among the pyrolysis gas components, is contacted with carbide to adsorb it on the porous inner surface and the surface of the carbide, thereby increasing the calorific value. In addition, it is a preferable process in terms of safety such as ignition by magnetic oxidation as well as improvement of heat generation.

Generally, carbonaceous carbide reacts with oxygen in the air when storing or transporting, resulting in spontaneous ignition. In the case of a porous material, it is known to have a high possibility of ignition. Therefore, when only carbide is used as the fuel, there is a possibility of being a disadvantage in terms of the heat generation amount and safety such as ignition.

On the other hand, since the carbide produced in the carbonization process of the present invention is also carried out under the carbonization condition of 400 to 600 ° C., porosity has developed and safety measures have to be taken in storage and transportation. However, since a viscous component such as tar, which is a condensable gas component in the pyrolysis gas, is adsorbed on the porous inner surface and the surface of the carbide, the surface area of the carbide reacting with oxygen in the air is naturally coated, No safety measures were required. Further, since the specific heat generation amount of carbide and the viscous combustible component such as tar, which is a combustible condensable gas, are adsorbed in the pyrolysis gas, the calorific value of the fuel is increased in terms of the total amount.

As described in the above adsorption step, the molding process does not require safety measures for ignition, but it is converted into a molded product through a molding machine in consideration of safety measures and handling properties for a long period of storage or transportation. In general, the molding is performed by injecting an external substance such as a binder. Since the condensable gas component in the pyrolysis gas of the present invention is adsorbed on the inner and outer surfaces of the carbide, it acts as a binder between the carbide particles during molding, It has the feature that it does not need to be injected with the exothermic reduction component such as osmium or osmium, or minimizes it. On the other hand, according to the heat utilization facility, the present molding process can be selectively used for adding solid carbide or additives to the solid fuel, thereby further diversifying the heat utilization facility.

As described above, the present invention can solve the problems by providing the method and apparatus for producing the carbonized solid fuel of the selective combustible waste through the carbonization step and the fuelization step.

Thus, the above-mentioned solution can provide a method and an apparatus for producing carbonized solid fuel capable of diversifying utilization facilities, homogenizing fuel characteristics, optimizing fuel cost, and increasing the amount of heat of combustion, as a substitute fuel for coal for selective combustible wastes. It can maximize the construction of resource circulation society, reduction of global warming, and securing new and renewable energy.

The present invention will now be described in detail with reference to the accompanying drawings.

1 is characterized in that it is manufactured through a selection (MBT) facility 10, a carbonization facility 20, and a fueling facility 30 for combustible waste sorting in constructing a method for producing a carbonized solid fuel of combustible waste according to the present invention , And coal substitute utilization facility (100), which is a utilization facility of carbonized solid fuel. Coal replacement facilities include dedicated power generation facilities, coal-fired power generation facilities, cement manufacturing facilities, paper mills, and other small- and medium-scale thermal utilization facilities.

2 is a whole process drawing showing a method for producing a carbonized solid fuel constituting the present invention. 1, the present invention can be roughly divided into a carbonization process 20 and a fuelization process 30. The carbonization process 20 includes a crushing process 21, a mixing process 22, a screening process 23, The process of the fueling process 30 includes a process 31 for evaluating the fuel quality of the selected carbide and a process for evaluating the quality of the adsorbed carbonized material A fueling step 30a which comprises a step of forming a carbonized solid fuel 35a, a step of molding 34, and a step of desalting, drying, adsorbing and molding (not shown in the figure)

If the molding process 35 of the fueling process 30a only molds the carbide of the combustible waste, the other fueling process 30b may further include additives such as coal or waste plastics to further improve the fuel cost, And a fueling process 30b for producing a carbonated solid fuel 36a generated through a process 36 of crushing 51 and mixing and molding the carbonaceous material 50. Depending on the situation of the coal substitute utilization facility 100 The fueling processes 30a and 30b can be selected and used.

3 is a detailed view for explaining the method and apparatus for producing carbonized solid fuel of the selective combustible waste according to the present invention.

First, in the carbonization step (facility), the crushing step (21) is a step of cutting or crushing to 60 mm, and the crusher can be used by selecting a cutter and a crusher.

The mixing process circulates 10 to 50% of the crushed and sorted carbides 26b to 100 weight% of the selected carbides so as to be mixed with the crushed combustible waste 21a. In this case, since the selective carbide 26b is crushed by the steam injection 43a, the selective carbide 26b is present in a wet state on the surface of the crushed and selected carbide (hereinafter referred to as selective carbide). Since it is mixed in a wet state, generation of scattered dust is minimized.

The impregnation process 23 is a process in which the mixed material 22a of the crushable combustible waste 21a and the selected carbohydrate 26b generated in the mixing process is reduced by a compressor type compressor vessel, Remove the oxygen content as much as possible. The compression pressure range for the depressurization is suitably not more than 5 kg / cm 2, and the depressed shape is not greatly affected, but it is preferably circular, and the diameter is preferably 30 mm or less and the length is preferably 50 mm or less.

The carbonization step 24 is carried out by selecting a carbonization furnace of an exothermic rotary furnace type within a temperature range of 400 to 600 ° C. and selecting the carbonization time within 20 to 60 minutes. The specific carbonization conditions are, for example, It is preferable to determine the carbonization temperature and time in such a manner that the fuel ratio is 0.5 or more (preferably 1.0 or more) and the production yield is 10 to 60 wt% or the like as compared with the viscous material. The carbonization heat source is also possible by the combustion gas 40a generated through the high temperature furnace 40. The main fuel source is the city gas or the diesel fuel and the non-adsorbing gas of the pyrolysis gas generated in the adsorption device 34 as the auxiliary fuel (24c) to be used as fuel. Meanwhile, the combustion gas 40a generated in the high temperature furnace is used as a carbonizing heat source, and the combustion gas 40b after the heat exchange is heat-exchanged from the heat exchanger 44 to the cooling effluent 42c and then treated in the air pollution control facility 45 do.

The cooling process 25 is cooled by an indirect water cooler and the cooling water 42a is supplied to the cooling water 42 by indirect cooling to cool the temperature of the carbide 24a to 150 ° C or less to suppress the possibility of ignition . The cooling drainage water is used as the washing water 42e of the desalination unit 32 when desalination is to be performed and is supplied to the water 42c of the steam generator 43 through the heat exchanger 44 do. It is also usable as the water 42d used in the heating tower of the air pollution control facility 45. [

      In the crushing / sorting step (26), the above-mentioned carbide is crushed to a maximum particle diameter of 5 mm or less by using a crusher. It is advantageous in terms of minimizing the particle size at the time of pulverization when the contact area with the pyrolysis gas in the fuel production process is increased to absorb the condensable gas. However, considering the energy required for pulverization and dust generation, . The metal is recovered through the magnetic separator, the aluminum separator or the like in the metal contained in the pulverized carbide. The selected carbides 26a recovered from the metals are transported to the fueling facility and circulated to the mixer 22 in a proportion of 10 to 50 parts by weight relative to 100 parts by weight of the double-screened carbides 26a to be mixed with the crushable combustible waste 21a do.

Meanwhile, in the fueling step (facility), the fuel quality evaluation process 31 calculates the chlorine content, the sulfur content, and the heavy metal content of the selective charcoal 26a generated in the carbonization step as the quality standards of the RDF The evaluation process is operated to satisfy the requirements. The quality standard is less than 2wt% for dry-base chlorine, 0.6wt% for sulfur, 1.2mg / kg for mercury (Hg) and 9.0mg / kg for cadmium (Cd) , Lead (Pb) should be less than 200mg / kg, and arsenic (As) should be less than 13mg / kg. The evaluation method is based on the waste process test method and the Korean Industrial Standard.

If the evaluation criterion is satisfied, it is directly transferred to the adsorption apparatus 34 for contacting the pyrolysis gas 24b and the carbides 31a and 31d, and if not satisfied, desalination is performed through the desalination apparatus 32 And the cooling drainage water 42e used in the cooler 25 is used for increasing the dissolution rate. This is a method for increasing the dissolution rate of saline or the like as hot water And the eluted desalted water 42f is transferred to a waste water treatment apparatus or a warming tower (not shown in the drawing). Thereafter, drying (33) is carried out. The dry heat source utilizes the residual energy in the combustion gas 40b, or uses the external fuel, and transfers the dry carbide 31d to the adsorption device 34.

The adsorption step is a step of adsorbing a carbide and a pyrolysis gas to adsorb a viscous component such as tar or the like, which is a condensable gas in a pyrolysis gas, to a carbide to increase a calorific value. In the adsorption device 34, Is a step for adsorbing a viscous combustible component such as tar on the carbides 31a and 31d to increase the calorific value of the carbide. This is because the tar or the like generated by liquefaction of the condensable gas in the pyrolysis gas due to the cooling function of the adsorption apparatus can be adsorbed to the carbide by the gas-solid contact reaction so as to face the carbide supplied into the adsorption apparatus in the apparatus . The configuration of the apparatus can be configured in a combined manner in which the apparatus is operated in a cooling and adsorption apparatus, and is described in detail in FIG.

As described in the above-mentioned problem solving means, the molding step does not require a safety measure for the ignition, but in order to take a more strict safety measure and to take into account handling properties such as storage and transportation, extrusion, briquetting, It is preferable to switch to the molded carbonized solid fuel 35a through the molding machine 35 of the first embodiment.

On the other hand, in the molding step, the carbonized material 31a, 31d alone is contacted with the pyrolysis gas 24b, and the carbonized material 34a formed by the adsorption of the adsorbed carbonized material 34a, A fueling process 30a for producing a solid fuel 35a and an adsorbing charcoal 34a and an additive 50 in the molding process for increasing the calorific value of the carbonized solid fuel and optimizing the fuel ratio, The carbonized solid fuel 36a can be produced through the fueling step 30b, which is the step 36 of pulverizing (51) and mixing and molding. The addition amount of the additive (50) is 10 to 50 or less based on 100 parts by weight of the adsorbed carbide (34a).

In particular, the addition amount and the additive material are determined for the fuel cost optimization, which is important in addition to the heating value increase for the diversification of the heat utilization facility, and it is determined according to the fuel characteristic of the heat utilization facility. In the present invention, tar and the like, which are condensable gas components in the pyrolysis gas 24b, are adsorbed on the inner and outer surfaces of the carbide, Or a binder between the carbide (34a) and the additive (50), thereby making it possible to dispense a binder, which is a component for reducing the calorific value such as starch or carboxymethylcellulose sodium, or to inject 10 wt% or less of the binder. This is because it is generally known that the condensable gas component is tar and therefore tackiness is present. The forming process between the adsorbed carbides does not require a certain strength or more but merely acts as a binder for maintaining a constant bonding force at the time of molding Therefore, it plays a role of binding due to the adhesive force of tar or the like adsorbed.

Fig. 4 is a detailed view of the apparatus 34 for adsorbing the carbides 31a and 31d and the pyrolysis gas 24b as follows.

The adsorption device 34 is a process in which the carbide materials 31a and 31d are supplied to the device upper end portion 34b and the pyrolysis gas 24b flowing into the lower end portion 34c is opposed to and adsorbed in the device. The condensed gas in the pyrolysis gas is adsorbed to the carbides 31a and 31d as the pyrolysis gas is cooled by injecting the cooling water into the outer upper end portion of the pyrolysis chamber 34 and discharging the cooling water 47b to the lower end. Generally, when the pyrolysis gas 24b is cooled, the condensable gas component is converted into a highly viscous tar component. Therefore, by indirectly cooling the pyrolysis gas 24b by the main adsorption device 34, the pyrolysis gas component can be reduced to the surface of the carbide . However, since cooling is performed simultaneously in the adsorption process, there is a possibility that a high-boiling point volatile matter such as tar adheres to the surface of the inside of the adsorption device 34. Therefore, it is also possible to include a material or a structure for preventing this. However, in actual operation, it is preferable to leave a margin of the adsorption device 34. [

In order to improve the adsorption efficiency, the lower conveyance of the carbides 31a and 31d in the adsorption device 34 is fed in a state of being filled in the adsorption device 34, or a structure for contact is provided, Which is the object of the present invention. In addition, when the adsorption process is completed in the adsorption device 34, a combustible gas such as CO, which is the non-adsorptive pyrolysis gas 24c, is supplied to be used as an auxiliary fuel of the high temperature furnace 40.

      Hereinafter, the present invention will be described in more detail with reference to the following examples.

(Example 1)

The combustible waste selected at the MBT facility is crushed to 60 mm by a crusher. The pulverized product is mixed with 10 to 50 parts by weight of the carbonized material selected after carbonization in a mixer. The mixture is drained to a receptacle with a diameter of 30 mm or less and a length of 50 mm or less. Charge the impurities within a temperature range of 400 to 600 ° C within 20 to 60 minutes. The carbide is cooled to 150 DEG C or less, and is crushed to 5 mm or less after cooling.

The pulverized carbides are used to sort out foreign substances such as metals from a sorting machine. The selected carbides are subjected to a process for evaluating the satisfaction of the fuel quality standard (solid fuel from waste, RDF) and, if satisfied, adsorbed in the adsorption unit for contact with pyrolysis gas. The adsorbed carbide in which the condensable combustible gas component is adsorbed in the pyrolysis gas produces the carbonized solid fuel formed through the molding machine.

(Example 2)

When the selective carbide of Example 1 does not meet the fuel quality standard, desalination is performed through a desalination unit to elute chlorine, sulfur and heavy metal components to meet the fuel quality standard, and then the drying, To produce carbonated solid fuel.

(Example 3)

An external binder is not required in the case of forming the adsorbed carbides of Examples 1 and 2 or 10% by weight or less of the adsorbed carbide is added to 100 parts by weight of the adsorbed carbide to produce a carbonized solid fuel.

(Example 4)

Additives (non-chlorine waste plastics or coal) are pulverized into 10 to 50 wt% or less of the adsorbed carbides of Examples 1 to 3 and mixed and molded to produce a carbonized solid fuel.

(Example 5)

The manufacturing process after the result of satisfaction of the fuel quality criterion of the selective carbide can be manufactured as follows.

Manufacture process Selective carbides meet fuel quality standards
If satisfied
Selective carbides meet fuel quality standards
If you are not satisfied Process 1 Adsorption → Forming → Carbonated solid fuel
- Step 2 Adsorption → Additive (coal) mixing → Forming → Carbonated composite solid fuel - Step 3 Adsorption → additive (waste plastic) mixture → molding → carbonated solid fuel - Step 4 - Desalination and drying → adsorption → molding → carbonized solid fuel
Step 5 - Desalination and drying → adsorption → additive (coal) mixing → molding
→ Carbonated composite solid fuel Step 6 - Desalination and drying → adsorption → additive (waste plastic) mixing → molding → carbonated composite solid fuel

      1 is a conceptual view of a method for producing a carbonized solid fuel of the present invention.

      2 is an overall process diagram of a method for producing a carbonized solid fuel.

      3 is a detailed view for producing a carbonized solid fuel;

      4 is a detailed view of an adsorption apparatus for adsorbing carbide and pyrolysis gas.

       DESCRIPTION OF THE REFERENCE NUMERALS

      10: MBT facility 20: Carbonization plant (facility) 30: Fuel plant (facility)

      100: coal substitute facility 21: crusher 22: mixer

      23: Sensible container 24: Carbonator 25: Cooler

      26: crushing / sorting machine 31: fuel quality evaluation 32: desalination device

      33: dryer 34: adsorption device 35: molding machine

      36: Mixing molding machine 35a: Carbonated solid fuel 36a: Carbonated composite solid fuel

40: high temperature furnace 42: cooling water 44: heat exchanger

45: Air pollution control facility 50: Additive

Claims (4)

The present invention relates to a method of producing a carbonized solid fuel for realizing diversification of heat utilization facilities by homogenizing the constituent flammable wastes, optimizing the fuel cost, A step (21) of crushing the selectively combustible waste (10a); A step (22) of mixing the crushed product (21a) with the selective carbide (26b); A step (23) of sensitizing the mixture (22a); A step (24) of carbonizing the impurities (23a); A step (25) of cooling the carbide (24a); A step (26) of crushing and sorting the cooled carbide (25a) A step (31) of evaluating the fuel quality of the selective carbide (26a); An adsorption step (34) in which the evaluation carbide (31a) and the pyrolysis gas (24b) are brought into contact to adsorb combustible components of tar, which is a condensable gas; A step (35) for molding the adsorbed carbide (34a) or a step (36) for mixing and molding the additive (50) to the adsorbed carbide (34a) ≪ RTI ID = 0.0 > 1. ≪ / RTI > The method according to claim 1, The fuel quality evaluation step (31) of the fueling step (30) includes the steps of: determining a content of chlorine, sulfur, and heavy metals; The step of directly conveying the carbide 31a to the adsorption device 34 or the step of transferring the carbide 31d to the adsorption device 34 after desalination 32 of the carbide 31b in accordance with the above- ≪ / RTI > wherein the flammable solid fuel is selected from the group consisting of: The method according to claim 1, Forming an external binder in the molding step (35) or the mixing molding step (36) of the fueling step (30) in an amount of not more than 10% by weight based on the weight of the adsorbed carbide (34a) A method for producing a carbonized solid fuel according to claim 36, wherein the additive (50), which is a non-chlorine waste plastic or coal, is added in an amount of 10 to 50 parts by weight based on 100 parts by weight of the adsorbed carbide (34a). The present invention relates to a carbonized solid fuel producing apparatus for homogenizing constituent combustible wastes, optimizing fuel costs, and achieving diversification of heat utilization facilities by making high calorific value, A crusher (21) for crushing the selectively combustible waste; A mixer (22) for mixing said crushed material with a selective carbide; A sensing vessel 23 for sensing the mixture; A carbonization furnace (24) for carbonizing the impurities; A cooler (25) for cooling the carbide; And a crushing / sorting unit (26) for crushing and sorting the cooled carbide, A step (31) of evaluating the fuel quality of the selective carbide; An adsorption device (34) for adsorbing combustible components of tar, which is a condensable gas, in the evaluation carbide and pyrolysis gas; A molding machine 35 for molding the adsorbed carbide or a mixer 36 for crushing and mixing the adsorbed carbide with additives such as non-chlorine waste plastics and coal, Wherein the carbonized solid fuel producing apparatus comprises:

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