KR101735640B1 - operating method and device for multi-stage combustion of petroleum cokes - Google Patents

operating method and device for multi-stage combustion of petroleum cokes Download PDF

Info

Publication number
KR101735640B1
KR101735640B1 KR1020150075012A KR20150075012A KR101735640B1 KR 101735640 B1 KR101735640 B1 KR 101735640B1 KR 1020150075012 A KR1020150075012 A KR 1020150075012A KR 20150075012 A KR20150075012 A KR 20150075012A KR 101735640 B1 KR101735640 B1 KR 101735640B1
Authority
KR
South Korea
Prior art keywords
fuel
combustion furnace
combustion
supplied
injector
Prior art date
Application number
KR1020150075012A
Other languages
Korean (ko)
Other versions
KR20160141138A (en
Inventor
김세원
이창엽
권민준
Original Assignee
한국생산기술연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국생산기술연구원 filed Critical 한국생산기술연구원
Priority to KR1020150075012A priority Critical patent/KR101735640B1/en
Publication of KR20160141138A publication Critical patent/KR20160141138A/en
Application granted granted Critical
Publication of KR101735640B1 publication Critical patent/KR101735640B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F23C1/10—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air liquid and pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/10—Disposition of burners to obtain a flame ring
    • F23C5/12—Disposition of burners to obtain a flame ring for pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/30—Staged fuel supply
    • F23C2201/301—Staged fuel supply with different fuels in stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

The present invention relates to a petroleum coke multi-stage combustion apparatus that distributes, controls, and separately supplies petroleum coke as fuel to be supplied to a combustion furnace in multiple stages. Wherein the fuel is supplied into the combustion furnace through the burner, and the remainder of the two or more fuels is supplied to the combustion chamber through the burner, And a fuel supply unit for directly supplying the fuel to the inside of the combustion furnace through one side of the combustion furnace, wherein the equivalent ratio of the total fuel at predetermined conditions required for flame combustion can be uniformly formed As a result, stable flame formation in the combustion furnace, resolution of the high-temperature region in the flame, and securing of the residence time of the fuel are possible, Can be minimized.

Description

TECHNICAL FIELD The present invention relates to a petroleum coke fuel multi-stage combustion apparatus and a method of operating the same,

The present invention relates to a combustion apparatus, and more particularly, to a solid fuel multi-stage combustion apparatus that distributes, controls, and separately supplies fuel supplied to a petroleum coke combustion system in multiple stages.

In conventional combustors using fossil fuels, it is inevitable to produce nitrogen oxides (NOx) having chemical formulas of NO and NO2 by chemical reaction at the time of combustion. The low NOx combustion technology for suppressing the generation of NOx has been developed to improve the structure of the combustor such as the mixture form of the fuel and the air and the air-fuel ratio. Nitrogen oxides generated in the combustion process react with other oxygen in the atmosphere and cause environmental problems such as smog and atmospheric ozone increase. In particular, emissions from these combustion processes are harming the environment and human health, and countries are tightening regulations on an increasingly stringent level.

The types of nitrogen oxides can be classified into thermal NOx, rapid NOx, and fuel NOx depending on the cause. The thermal nitrogen oxides are produced by the reaction of nitrogen in the air with oxygen at a high temperature of 1600 ° C or higher. Rapid nitrogen oxides are generated at the initial stage of combustion in the combustion of hydrocarbon-based fuels. The fuel nitrogen oxides react with the nitrogen components contained in the fuel Lt; / RTI > Even in the countermeasures against such nitrogen oxides, it is effective to control matters related to thermal NOx and Prompt NOx because gaseous fuels such as natural gas do not contain nitrogen components in the fuel.

Nitrogen oxides cause photochemical smog and acid rain and are known to have serious effects on flora and fauna. For a long time many researchers have studied various ways to reduce NOx.

As a result of this, low NOx methods currently being tried include exhaust gas recirculation, water or steam injection, multi-stage combustion of air and fuel, selective non-catalytic reduction (SNCR), selective catalytic reduction (SCR) catalytic reduction). Recently, advanced countries are attempting to recycle NOx in the afterburning region, and it is known that NOx reduction efficiency and economic efficiency are high.

As an invention of the present applicant, Korean Patent Registration No. 1512352 discloses a combustion apparatus for reducing NOx through gas recirculation in a combustion furnace.

However, the above-described invention is very effective for reducing NOx, but it does not precisely control the combustion conditions inside the combustion furnace. In order to optimize the combustion conditions as well as the reduction of NOx, it is necessary to precisely control the basic fuel supply something to do.

That is, the petroleum coke, which is a solid fuel used in the combustors as described above, has a very low volatile content and a very high content of fixed carbon, so that the ignition property and reactivity are very poor. In order to completely burn, Is required. Currently, only the combustor and the combustion technology developed by the applicant of the present invention is unique to the petroleum coke fuel combustor, and the conventional combustor is modified and optimized for the coal (pulverized coal) combustor. Therefore, it is difficult to secure the stability of the combustion system, There is a problem that a large amount of harmful substances (NOx) are generated. This hinders energy efficient use, which increases the fuel cost burden and increases the maintenance cost of post-treatment facilities such as SCR.

KR 10-1512352 B1

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a combustion system for a petroleum coke, which includes a combustor for mixed combustion with a liquid fuel such as a petroleum coke oven and refined oil, It is an object of the present invention to provide a combustion device which is excellent in stability and economical efficiency of a combustion system and in improving the low-pollution performance through improvement in stability and low-emission.

According to an aspect of the present invention, there is provided a combustion apparatus comprising: a combustion section having a burner positioned at one side of a combustion furnace and a combustion furnace; and two or more petroleum cokes as a fuel are separately supplied to the combustion section, And a fuel supply unit for supplying a part of the fuel to the inside of the combustion furnace through the burner and directly supplying the rest of the two or more fuels to the inside of the combustion furnace through one side of the combustion furnace .

According to the petroleum coke multi-stage combustion apparatus of the present invention as described above, the equivalence ratio of the total fuel at predetermined conditions required for flame combustion can be uniformly formed, and stable flame formation in the combustion furnace and high- And the residence time of the fuel can be secured, the generation of nitrogen oxides can be minimized.

1 is a schematic view of a petroleum coke multi-stage combustion apparatus according to an embodiment of the present invention.
2 is a schematic view of a petroleum coke multi-stage combustion apparatus according to another embodiment of the present invention.
3 is a schematic view of a combustion unit which is an embodiment of a petroleum coke multi-stage combustion apparatus according to an embodiment of the present invention.
4 is a schematic view of a combustion unit which is an embodiment of a petroleum coke multi-stage combustion apparatus according to another embodiment of the present invention.
FIG. 5 is a schematic view of a burner as a constitution of a petroleum coke multi-stage combustion apparatus according to an embodiment of the present invention, wherein FIG. 5A is a vertical sectional view, and FIG.
FIG. 6 is a schematic view of a burner which is a constitution of a petroleum coke multi-stage combustion apparatus according to another embodiment of the present invention, wherein FIG. 6A is a vertical sectional view, and FIG.
FIG. 7 is a schematic view of a dispensing part which is a constitution of a petroleum coke multi-stage combustion apparatus according to an embodiment of the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

In addition, the described embodiments are provided for illustrative purposes and do not limit the technical scope of the present invention.

The components constituting the petroleum coke multi-stage combustion apparatus of the present invention can be used integrally or individually. In addition, some components may be omitted depending on the usage pattern.

Hereinafter, a petroleum coke multi-stage combustion apparatus according to preferred embodiments of the present invention (hereinafter simply referred to as a 'combustion apparatus') will be described with reference to FIGS. 1 to 7 .

First, the combustion apparatus according to the first embodiment of the present invention will be described in detail.

As shown in FIG. 1, the combustion apparatus according to the first embodiment of the present invention includes a combustion section 100 and an auxiliary fuel injection body 200.

The combustion unit 100 includes a combustion furnace 110 and a burner 120 connected to one side of the combustion furnace 110.

The combustion furnace 110 is provided with a space for combustion of the fuel to be supplied. Preferably, the combustion furnace 110 is made of a heat-resistant material capable of withstanding high temperature conditions of 1500 ° C or higher for smooth combustion, And may be a rectangular or circular hollow structure capable of being cooled.

3, the burner 120 is connected to one side of the combustion furnace 110 to supply fuel to the inside of the combustion furnace 110 to allow combustion to occur in the combustion furnace 110, 5, the auxiliary fuel injector 121, the first air injector 122, the first fuel injector 123, the second air jet injector 124, and the third air injector 124, And a jetting member 125 may be provided.

The auxiliary fuel injector 121 is connected to an auxiliary fuel supply unit (not shown), and the auxiliary fuel supplied from the auxiliary fuel injector 121 is injected into the combustion furnace through the auxiliary fuel injector 121, But it is not limited to this, and a solid fuel such as petroleum coke can be used.

 The first air ejecting body 122 is disposed so as to surround the auxiliary fuel injecting body 121. Specifically, the first air injecting body 122 is disposed on the same circumference at regular intervals about the auxiliary fuel injecting body 121, Primary oxidant or primary air for smooth combustion is injected into the combustion furnace.

The first fuel injecting body 123 is disposed so as to surround the first air injecting body 122 and is disposed on the same circumference with the auxiliary fuel injecting body 121 as the center, And the fuel supplied from the fuel supply unit 200 to be described later is injected into the combustion furnace through the first fuel injection body 123 and supplied.

The second air ejecting body 124 and the third air ejecting body 125 sequentially surround the periphery of the first fuel injecting body 123 and are arranged on the same circumference at regular intervals around the auxiliary fuel injecting body 121 And the secondary oxidant, the tertiary oxidant, the secondary air, and the tertiary air are introduced into the combustion furnace through the furnace, respectively.

5, the auxiliary fuel injector 121, the first air injector 122, the first fuel injector 123, the second air injector 124, The carcass 125 may be concentrically arranged around the auxiliary fuel injector 121 and the primary to tertiary oxidant or air A may be injected into the burner 120 as shown in FIG. And is supplied from one side to be sprayed.

In addition, a swirler 126 is provided at an end of each of the air jet bodies 122, 124, and 125, that is, toward an end of the combustion furnace 110, for generating a flow when supplying air or an oxidant. . As a result, the supplied main fuel, auxiliary fuel, and air are effectively mixed to increase the combustion efficiency.

1, the fuel supply unit 200 is connected to the combustion unit 100 to supply the fuel necessary for the combustion process of the combustion unit 100. The fuel f is preferably a solid fuel, It can be coke.

Generally, in the above-described combustion processes, the fuel is supplied into the combustion furnace 110 for the purpose of forming a stable flame region in the combustion furnace 110, eliminating the high-temperature region in the flame, securing the residence time of the supplied fuel, The formation of a uniform equivalence ratio of fuel or air and efficient combustion of the flame are very important.

In the present invention, the fuel (f) is distributed and supplied to the combustion furnace 110 in multiple stages in order to satisfy the above-described conditions. In this multi-stage supply, more precise multi-stage supply can be performed. 1, the fuel supply unit 200 may include a plurality of fuel supply units 210 and 220 having two or more fuel supply units 210 and 220. Hereinafter, 2 fuel supply unit 220 The fuel supply unit 200 including the two fuel supply units 210 and 220 will be described as an example and the configuration of the two fuel supply units 210 and 220 It was confirmed that the efficiency was high.

Each of the fuel supply units 210 and 220 supplies petroleum coke as fuel f to the combustion unit 100. The fuel supply unit 210 and 220 may be a solid fuel storage unit, The solid fuel stored in the solid fuel storage part is mixed with the transfer fluid by using a transfer pump and supplied to the combustion part 100 for smooth supply of the solid fuel. , And the first fuel (f1) and the second fuel (f2) are separately distributed and supplied.

The first fuel supply unit 210 is connected to the burner 120 of the combustion unit 100 and supplies the first fuel f1 to the burner 120. More specifically, And supplied to the first fuel injector 123 so that the supplied first fuel f1 is injected into the combustion furnace 110 through the first fuel injector 123 to be supplied.

The second fuel supply unit 220 is connected to one side of the combustion furnace 110 of the combustion unit 100 to directly supply the second fuel f2 into the combustion furnace 110.

As described above, a plurality of fuel supply units 200 are provided to distribute the auxiliary fuel f supplied to the combustion unit 100, and separately control the auxiliary fuel f to control the auxiliary fuel f more precisely.

The first fuel f1 is supplied into the combustion furnace 110 through the burner 120 and the second fuel f2 is supplied directly into the combustion furnace 110 through one side of the combustion furnace 110 3, the main fuel and the first fuel f1 are supplied to the inside of the combustion furnace 110 through the burner 120 and burned. At the beginning of the combustion process, It is possible to uniformly form the equivalent ratio of the total fuel at predetermined conditions required for the flame combustion to provide a stable flame formation in the combustion furnace 110 and a high- The generation of nitrogen oxides can be minimized by using the advantage of the residence time of the fuel and the resolution of the fuel. In order to control the distribution / supply of the first fuel f1 and the second fuel f2 as described above, A control unit 500 for controlling the fuel supply units 210 and 220 may be provided.

Next, a combustion apparatus according to another embodiment of the present invention will be described.

In the following description, for the sake of understanding and explanation of the invention, differences from the above-described embodiment will be mainly described, and description of the other constituent elements will be omitted.

Hereinafter, a combustion apparatus according to a second embodiment of the present invention will be described.

As shown in FIG. 1, the combustion section 100 of the second embodiment of the present invention includes a burner 120 'having a different structure from the burner 120 of the first embodiment.

6, the burner 120 'in the present embodiment includes a second fuel injector 123' positioned between the second air injector 124 and the third air injector 125, Specifically, the second fuel injector 123 'is positioned between the second air injector 124 and the third air injector 125, and the auxiliary fuel injector 123' 121 at regular intervals on the same circumference.

Unlike the first embodiment, the second fuel supplier 220 is connected to the second fuel injector 123 ', so that the divided second fuel f2 is supplied to the second fuel injector 123 'And is supplied into the combustion furnace 110 by being injected. That is, the configuration in which the first fuel f1 is supplied is the same as the first fuel injector 123, but the second fuel f2 is supplied at another position inside the combustion section 100 through another configuration.

4, the first fuel f1 is burned in the vicinity of the burner 120 in the combustion furnace and the second fuel f2 is burned in the downstream region C2 of the flame region, (The side far from the combustion chamber 120 ') to be burned, the equivalence ratio of the total fuel at predetermined conditions required for the flame combustion can be uniformly formed, and stable flame formation in the combustion furnace 110 and high- It is possible to minimize the generation of nitrogen oxides by utilizing advantages such as elimination of fuel consumption, securing of residence time of fuel, and the like.

Next, a combustion apparatus according to a third embodiment of the present invention will be described.

2, the combustion apparatus according to the third embodiment of the present invention includes a single fuel supply unit 200 and is connected to the combustion unit 100 and the fuel supply unit 200, 200) for distributing the fuel (f) supplied to the combustion section (100).

7, the distribution unit 400 includes a fuel inlet pipe 410 through which the fuel f supplied from the fuel supply unit 200 flows in one side, a fuel inlet pipe 410 through which the fuel f supplied from the fuel supply unit 200 flows, The fuel f flowing into the fuel inlet pipe 410 is branched into the first fuel outlet pipe 430 and the second fuel outlet pipe 420, 2 fuel outflow pipe 420 and is supplied to the combustion section 100 as a first fuel f1 and a second fuel f2 at a predetermined ratio.

2 and 4, the first fuel outlet pipe 430 is connected to one side of the combustion furnace 110, the second fuel outlet pipe 420 is connected to the burner 120, The first fuel f1 is supplied to the first fuel injection body through the first fuel outflow pipe 430 connected to the jetting body and injected into the combustion furnace 110, The second fuel f2 is directly supplied into the combustion furnace 110 through one side of the combustion furnace 110. [

In other words, the fuel f supplied from the single fuel supply unit 200 is distributed using the distribution unit 400 and supplied as in the first embodiment. For this purpose, the fuel outflow pipes 420, 430 are provided with a damper (not shown) to control the distribution ratio of the first fuel f1 and the second fuel f2, and the control unit is connected to the distribution unit 400 to control the distribution ratio.

Next, a combustion apparatus according to a fourth embodiment of the present invention will be described.

The combustion apparatus according to the fourth embodiment of the present invention has the same overall configuration and supply system as that of the third embodiment except that the burner further includes the second fuel injector 123 ' The fuel f is divided into the first fuel f1 and the second fuel f2 in the distributor 400 as in the third embodiment and the first fuel injector 120 ' 123 and the second fuel injector 123 '.

That is, in the first to fourth embodiments, the fuel f is distributed to the combustion unit 100, the fuel supply unit 200 for controlling the fuel supply unit 200 is separately operated, The present invention is not limited to the four embodiments in which the features and the configurations of the two examples of the burners 120 and 120 'are combined.

In the third and fourth embodiments described above, the distribution of the fuel f supplied from the single fuel supply unit 200 is distributed by using the distributor 400, and the accuracy of distribution may be somewhat lowered. However, The provision of only one supply unit 200 reduces the installation easiness, the saving of the installation space and the cost, and the accuracy can be supplemented by the control algorithm for controlling the control unit 500 and the construction of the database.

As described above, according to the combustion apparatus of the present invention, in order to realize a uniform equivalence ratio in the combustion operation of the petroleum coke or the petroleum coke and the liquid fuel, the fuel is distributed and supplied in multiple stages to produce a uniform equivalent ratio Formation and efficient flame partitioning are used to improve stability and economic efficiency of combustion system and improve low pollution performance through improvement of combustion stability and low pollution.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100:
110: Combustion furnace
120, 120 ': burner
121: auxiliary fuel injection body
122: first air jetting body
123: First fuel injection body
123 ': a second fuel injector
124: second air jetting body
125: third air jetting body
126: Swivel
200: fuel supply unit
210: a first fuel supply unit
220: second fuel supply part
400:
410: fuel inlet pipe
420: First fuel outlet pipe
430: Second fuel outlet pipe
500:

Claims (11)

A combustion apparatus comprising a combustion furnace (110) and a burner (120) located at one side of the combustion furnace (110)
An auxiliary fuel injector 121 located at the center of the burner 120 and injecting liquid fuel into the combustion furnace;
A first fuel injector 123 positioned to surround the auxiliary fuel injector 121 and injecting petroleum coke fuel f into the combustion furnace; And
The first fuel f1 is divided into the first fuel f1 and the second fuel f2 and supplied to the combustion furnace 110. The first fuel f1 is supplied to the first fuel injector 123 The second fuel f2 is supplied to the combustion furnace 110 via the side of the combustion furnace 110 to be burned together with the liquid fuel supplied to the auxiliary fuel injection body 121, And a fuel supply unit (200) for directly supplying the fuel to the combustion furnace (110)
Petroleum coke fuel multistage combustion apparatus.
The method according to claim 1,
The fuel supply unit 200,
A first fuel supply unit 210 for supplying the first fuel f1 into the combustion furnace 110 through the first fuel injector 123 and a second fuel supply unit 210 for supplying the second fuel f2 to the combustion furnace 110, And a second fuel supply unit 220 for directly supplying fuel into the combustion furnace 110 through a side surface of the combustion furnace 110,
Wherein the first fuel (f1) and the second fuel (f2) are supplied into the combustion furnace (110) at a predetermined ratio,
Petroleum coke fuel multistage combustion apparatus.
A combustion apparatus comprising a combustion furnace (110) and a burner (120) located at one side of the combustion furnace (110)
An auxiliary fuel injector 121 located at the center of the burner 120 and injecting liquid fuel into the combustion furnace;
A first fuel injector 123 positioned to surround the auxiliary fuel injector 121 and injecting petroleum coke fuel f into the combustion furnace; And
A fuel supply unit 200 for supplying the petroleum coke fuel f to the combustion furnace 110; And
Wherein the first fuel f1 and the second fuel f2 are connected to the side of the combustion furnace 110 and the fuel supply unit 200 to distribute and supply the petroleum coke fuel f to the first fuel f1 and the second fuel f2, The fuel f1 is supplied into the combustion furnace 110 through the first fuel injector 123 to burn together with the liquid fuel supplied to the auxiliary fuel injector 121, And a distributor (400) for directly supplying fuel (f2) into the combustion furnace (110) through a side surface of the combustion furnace (110)
Petroleum coke fuel multistage combustion apparatus.
The method of claim 3,
The distribution unit 400 includes:
A fuel inlet pipe 410 through which the petroleum coke fuel f supplied from the fuel supply unit 200 flows into one side, a first fuel outlet pipe 430 branched from the other side of the fuel inlet pipe 410, And a second fuel outlet pipe (420)
The first fuel outlet pipe 430 is connected to the side of the combustion furnace 110 and the second fuel outlet pipe 420 is connected to the first fuel injector 123,
The petroleum coke fuel f flowing into the fuel inlet pipe 410 is distributed to the first fuel f1 and the second fuel f2 in a predetermined ratio and the first fuel f1 is distributed to the first fuel f1 and the second fuel f2, Is supplied into the combustion furnace 110 through the fuel injector 123 and the second fuel f2 is supplied into the combustion furnace 110 through the side face of the furnace 110,
Petroleum coke fuel multistage combustion apparatus.
A combustion apparatus comprising a combustion furnace (110) and a burner (120 ') located at one side of the combustion furnace (110)
An auxiliary fuel injector 121 located at the center of the burner 120 'and injecting liquid fuel into the combustion furnace;
A first fuel injector 123 positioned to surround the auxiliary fuel injector 121 and injecting petroleum coke fuel into the furnace;
A second fuel injector 123 'positioned to surround the first fuel injector 123 and injecting petroleum coke fuel into the furnace; And
The petroleum coke fuel f is divided into a first fuel f1 and a second fuel f2 and is supplied into the combustion furnace 110 through the burner 120 ' The first fuel f1 is supplied into the combustion furnace 110 through the first fuel injector 123 to be burned together with the liquid fuel supplied to the auxiliary fuel injector 121 And a fuel supply unit 200 for supplying the second fuel f2 into the combustion furnace 110 through the second fuel injector 123 '
Petroleum coke fuel multistage combustion apparatus.
6. The method of claim 5,
The fuel supply unit 200,
The first fuel f1 and the second fuel f2 are supplied into the combustion furnace 110 through the first fuel injector 123 and the second fuel injector 123 ' A supply unit 210 and a second fuel supply unit 220,
The first fuel f1 and the second fuel f2 are distributed at a predetermined ratio in the first fuel supply unit 210 and the second fuel supply unit and are supplied to the first fuel injector 123 and the second fuel injector 123, And is supplied into the combustion furnace 110 through the fuel injector 123 '
Petroleum coke fuel multistage combustion apparatus.
delete A combustion apparatus comprising a combustion furnace (110) and a burner (120 ') located at one side of the combustion furnace (110)
An auxiliary fuel injector 121 located at the center of the burner 120 'and injecting liquid fuel into the combustion furnace;
A first fuel injector 123 positioned to surround the auxiliary fuel injector 121 and injecting petroleum coke fuel f into the combustion furnace;
A second fuel injector 123 'positioned to surround the first fuel injector 123 and injecting petroleum coke fuel f into the combustion furnace; And
A fuel supply unit 200 for supplying the petroleum coke fuel f to the combustion unit 100; And
The fuel is supplied to the combustion furnace 100 and the fuel supply unit 200 so that the petroleum coke fuel f is distributed to the first fuel f1 and the second fuel f2 according to a predetermined ratio, The divided first fuel f1 is supplied into the combustion furnace 110 through the first fuel injector 123 to be burned together with the liquid fuel supplied to the auxiliary fuel injector 121 And a distributor (400) for supplying the second fuel (f2) into the combustion furnace (110) through the second fuel injector (123 '
Petroleum coke fuel multistage combustion apparatus.
delete 9. The method of claim 8,
The distribution unit 400 includes:
A fuel inlet pipe 410 through which the petroleum coke fuel f supplied from the fuel supply unit 200 flows into one side, a first fuel outlet pipe 430 branched from the other side of the fuel inlet pipe 410, And a second fuel outlet pipe (420)
The first fuel outlet pipe 430 is connected to the first fuel injector 123 and the second fuel outlet pipe 420 is connected to the second fuel injector 123 '
The petroleum coke fuel f flowing into the fuel inlet pipe 410 flows through the first fuel outlet pipe 430 and the second fuel outlet pipe 420 to the first fuel f1 at the predetermined ratio, Wherein the first fuel f1 is supplied into the combustion furnace 110 through the first fuel injector 123 and the second fuel f2 is supplied into the combustion furnace 110 via the first fuel injector 123, And is supplied into the combustion furnace 110 through the second fuel injector 123 '
Petroleum coke fuel multistage combustion apparatus.
11. The method according to claim 4 or 10,
Further comprising a damper installed in the first fuel outflow pipe and the second fuel outflow pipe to adjust a distribution ratio to the first fuel f1 and the second fuel f2, ,
Petroleum coke fuel multistage combustion apparatus.
KR1020150075012A 2015-05-28 2015-05-28 operating method and device for multi-stage combustion of petroleum cokes KR101735640B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150075012A KR101735640B1 (en) 2015-05-28 2015-05-28 operating method and device for multi-stage combustion of petroleum cokes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150075012A KR101735640B1 (en) 2015-05-28 2015-05-28 operating method and device for multi-stage combustion of petroleum cokes

Publications (2)

Publication Number Publication Date
KR20160141138A KR20160141138A (en) 2016-12-08
KR101735640B1 true KR101735640B1 (en) 2017-05-17

Family

ID=57577000

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150075012A KR101735640B1 (en) 2015-05-28 2015-05-28 operating method and device for multi-stage combustion of petroleum cokes

Country Status (1)

Country Link
KR (1) KR101735640B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6084817B2 (en) * 2012-11-14 2017-02-22 榮子 山田 High area reduction rolling method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101512352B1 (en) 2013-11-12 2015-04-23 한국생산기술연구원 Low NOx Burner using forced internal recirculation of flue gas and method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6084817B2 (en) * 2012-11-14 2017-02-22 榮子 山田 High area reduction rolling method

Also Published As

Publication number Publication date
KR20160141138A (en) 2016-12-08

Similar Documents

Publication Publication Date Title
JP7044669B2 (en) Gas turbine combustor
KR101512352B1 (en) Low NOx Burner using forced internal recirculation of flue gas and method thereof
KR101992413B1 (en) Low NOx Burner
US8142186B2 (en) Arrangement for preparation of a fuel for combustion
KR101583509B1 (en) A Burner for generating reduced nitrogen oxide
CA2897422C (en) Low nox combustion method and apparatus
KR101203189B1 (en) Burner for generating reduced nitrogen oxide through forced internal recirculation of flue gas
CA2827331A1 (en) Low nox combustion process and burner therefor
CN105889921A (en) System for removing nitric oxide in smoke of gas boiler and method of system
CN104595927B (en) Low heat value of gas turbine fuel combustion chamber
CN111664461A (en) Efficient organic waste gas treatment system and method
KR100763002B1 (en) Boiler having injection device that spout reductor for denitration
KR101737235B1 (en) mixed-combustion burner
KR101328255B1 (en) Burner using more than two gases having a different burning speed
KR101735640B1 (en) operating method and device for multi-stage combustion of petroleum cokes
KR102068037B1 (en) Low NOx combustion device through premixing and diffusion flame formation
KR101730545B1 (en) Low NOx burner
US9964302B2 (en) Fuel injection system for use in a catalytic heater and reactor for operating catalytic combustion of liquid fuels
KR102261150B1 (en) A Low-NOx combustor capable of internal recirculation of flue gas by using venturi effect through improvement of burner structure
JP2014145322A (en) Gas turbine combustor
KR101102062B1 (en) a NOx reducing system of using burner with a high pressure and an air current
KR20210105660A (en) NOx reduction system using wasted heat
KR20120007299A (en) Steam mixing heat water gas heat burner
KR101822997B1 (en) Low NOx burner
KR101730003B1 (en) Pet-coke burner and the method of it

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant