SU1138598A1 - Boiler furnace - Google Patents

Boiler furnace Download PDF

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Publication number
SU1138598A1
SU1138598A1 SU833548269A SU3548269A SU1138598A1 SU 1138598 A1 SU1138598 A1 SU 1138598A1 SU 833548269 A SU833548269 A SU 833548269A SU 3548269 A SU3548269 A SU 3548269A SU 1138598 A1 SU1138598 A1 SU 1138598A1
Authority
SU
USSR - Soviet Union
Prior art keywords
burners
nozzles
boiler
coagulum
fuel
Prior art date
Application number
SU833548269A
Other languages
Russian (ru)
Inventor
Владимир Валентинович Осинцев
Амир Мухарамович Хидиятов
Иосиф Хайм-Лейбович Рабовицер
Геннадий Васильевич Козьмин
Original Assignee
Уральский Филиал Всесоюзного Дважды Ордена Трудового Красного Знамени Теплотехнического Научно-Исследовательского Института Им.Ф.Э.Дзержинского
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 Уральский Филиал Всесоюзного Дважды Ордена Трудового Красного Знамени Теплотехнического Научно-Исследовательского Института Им.Ф.Э.Дзержинского filed Critical Уральский Филиал Всесоюзного Дважды Ордена Трудового Красного Знамени Теплотехнического Научно-Исследовательского Института Им.Ф.Э.Дзержинского
Priority to SU833548269A priority Critical patent/SU1138598A1/en
Application granted granted Critical
Publication of SU1138598A1 publication Critical patent/SU1138598A1/en

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Abstract

The BOILER'S FIRING, containing a prismatic vertical chamber with drow wounds, on the walls of which pulverized coal burners and waste air nozzles are installed tangentially to their conventional circumferences, characterized in that, in order to increase efficiency, the waste air nozzles are located under the burners at a distance

Description

The invention relates to the field of fuel combustion and can be used in thermal power plants.
Known furnace of the boiler, containing a prismatic combustion chamber, on the walls of which are installed pulverized burners and burned waste air 1.
The disadvantage of these structures is the reduced efficiency due to the low combustion efficiency.
Also known is the boiler furnace containing a prismatic vertical combustion chamber, on the walls of which pulverized coal burners and waste air nozzles are installed, which are located tangentially to their conventional circumference m 2.
A disadvantage of the known construction is also its reduced efficiency due to insufficient efficient combustion of fuel when a part of the fuel, coagulum formed during the separation of the main mass of fuel during hydrotransport from water and rock, is not used.
The purpose of the invention is to increase efficiency.
The goal is achieved by the fact that in the furnace of a boiler containing a prismatic vertical combustion chamber, on the walls of which pulverized coal burners and waste air nozzles are installed, located tangentially to their conventional circumferences, waste air nozzles are located under the burners at a distance (1.0-2, 5) bj, and their conventional circle has a diameter equal to (0.25-0.75) Ap, and on the walls of the combustion chamber ejection nozzles for insertion of the fuel coagulum are additionally installed, placed above the burners at a distance (1.0-2 5) LP and tangential on a notional circle having a diameter equal to (1,25-2,5) dp, where bx - Schirin burner; df is the diameter of the conditional circle.
FIG. 1 shows a boiler unit with a boiler equipped with a firebox; in fig. 2, section A-A in FIG. I; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 shows section A-A in FIG. 1 (option II); in fig. 6 is a section BB in FIG. 1 (option II); in fig. 7 is a section bb of FIG. 1 (option II).
The furnace 1 contains a prismatic vertical combustion chamber 2 on the walls 3 of which pulverized coal burners 4 are installed, exhaust air nozzles 5 and additional ejection nozzles 6 for introducing fuel coagulum. The burners 4 and nozzles 5 and 6 are set tangentially to their conventional circumferences, the conventional circumference of the exhaust air nozzles 5 has a diameter of (0.25-0J5) dp, and the conventional circumference of the nozzles 6 for injecting fuel coagulum- (1.25-2 , 5) di-, where 4d is the diameter of the conditional circumference of the burners 4. Nozzles 5 are located under the burners 4, and nozzles 6 are above the burners 4 at a distance (1.0-2.5) Lp, where Dp is the width of the burner 4.
The boiler unit contains a centrifuge 7, a raw coal bunker 8 with a feeder 9, which is connected to the dryer 10. The dryer 10 is connected by ducts 11 equipped with regulators 12 to the combustion chamber 2 of the furnace and the convective shaft 13 of the boiler 1, the gas duct 14 on which the fan 15 is located to the nozzles 5 of waste air and pipelines 16, equipped with a flare valve 17 with a mill 18. The mill 18 is equipped with a nozzle 19
the air inlet and connected by the dust pipe 20 to the burners 4, equipped with the secondary air inlet pipes 21. The centrifuge 7 is connected by a pipe 22, equipped with a pump 23, to the nozzles 6 for introducing the fuel coagulum. Nozzles 6 are supplied
nozzles 24 for supplying compressed air or steam.
Boiler unit with a boiler furnace works as follows.
Hydro coal from pulp storage, or pulp pipeline (not shown) enters the centrifuge 7, where separation of the dried coal mass (cake) and the wet weight (fuel coagulum) occurs. The cake contains up to 80% of all organic matter.
coal, coagulum - up to 20%, with particles up to 1-3 mm in the cake, which must be grinded in a mill before burning, and coagulum - coal fines up to 40 microns, rock (clay compounds, sand), zod, etc. Keck collected after centrifuge
7 in the bunker 8, is directed to the dryer 10, where flue gases are taken along the duct 11, which are taken from the chamber 2 or the convective shaft 13 of the boiler. The required level of temperatures introduced into the dryer 10 gases is exhausted by regulators 12. Dried large particles of cake fall to the bottom of dryer 10, from where the flashing light 17 is discharged through conduit 16 to mill 18, where primary air is also introduced through nozzle 19. From the mill, the mixture of primary air with cake dust is directed to the burners 4, where secondary air is also fed through pipe 21. Removal of the drying agent with moisture and
the fines of the cake from the dryer W are produced by the fan 15 through the duct 14 through the discharge nozzles 5, and the discharge of the coagulum from the centrifuge 7 by the pump 23 through the pipeline 22 through the nozzles 6, where the compressed air ejects and sprays the coagulum through the nozzle 24 2 combustion chambers.
The location of the exhaust air nozzles is tangential to the conventional circle with a diameter of 0.25-0.75 diameter of the conventional circle of burners and below them at a distance of 1.0-2.5 width of the burners and additional installation of ejector nozzles to enter the fuel coagulum tangentially to the conventional circle with a diameter of 1.25-2.5 diameters of the conditional circumference of the burners and. . Figure 2 above them at a distance of 1.0-2.5 widths of burners 6 allows the fuel coagulum to be burned with a high degree of burnout of organic matter, reduces the amount of fuel entering through the nozzles, and eliminates slagging of the walls of the combustion chamber, which increases efficiency and reliability. 3-3 F1 / g4

Claims (1)

  1. A BOILER FUEL containing a prismatic vertical combustion chamber, on the walls of which there are dust-coal burners and exhaust air nozzles located tangentially to their conditional circles, characterized in that, in order to increase efficiency, the exhaust air nozzles are located below the burners at a distance (1, 02.5. (1.0-2.5) bp and tangential to the conditional circle with a diameter equal to (1.25-2.5) dp, where b P is the width of the burner; dp is the diameter of the conditional circle.
    7
    SU. „. 1138598
SU833548269A 1983-02-04 1983-02-04 Boiler furnace SU1138598A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU833548269A SU1138598A1 (en) 1983-02-04 1983-02-04 Boiler furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833548269A SU1138598A1 (en) 1983-02-04 1983-02-04 Boiler furnace

Publications (1)

Publication Number Publication Date
SU1138598A1 true SU1138598A1 (en) 1985-02-07

Family

ID=21048215

Family Applications (1)

Application Number Title Priority Date Filing Date
SU833548269A SU1138598A1 (en) 1983-02-04 1983-02-04 Boiler furnace

Country Status (1)

Country Link
SU (1) SU1138598A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2573078C2 (en) * 2014-02-28 2016-01-20 Евгений Михайлович Пузырёв Swirling-type chamber furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Авторское свидетельство СССР № 929962, кл. F 22 В 33/00, 1980. 2. Авторское свидетельство СССР № 892124, кл. F 23 С 5/32, 1977. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2573078C2 (en) * 2014-02-28 2016-01-20 Евгений Михайлович Пузырёв Swirling-type chamber furnace

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