RU94044252A - Boiler furnace - Google Patents

Boiler furnace

Info

Publication number
RU94044252A
RU94044252A RU94044252/06A RU94044252A RU94044252A RU 94044252 A RU94044252 A RU 94044252A RU 94044252/06 A RU94044252/06 A RU 94044252/06A RU 94044252 A RU94044252 A RU 94044252A RU 94044252 A RU94044252 A RU 94044252A
Authority
RU
Russia
Prior art keywords
cooling chamber
fuel
chamber
mouth
furnace
Prior art date
Application number
RU94044252/06A
Other languages
Russian (ru)
Other versions
RU2079780C1 (en
Inventor
Ф.З. Финкер
Ю.А. Рундыгин
И.Б. Кубышкин
Original Assignee
Малое государственное внедренческое предприятие "Политехэнерго"
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 Малое государственное внедренческое предприятие "Политехэнерго" filed Critical Малое государственное внедренческое предприятие "Политехэнерго"
Priority to RU94044252A priority Critical patent/RU2079780C1/en
Publication of RU94044252A publication Critical patent/RU94044252A/en
Application granted granted Critical
Publication of RU2079780C1 publication Critical patent/RU2079780C1/en

Links

Abstract

FIELD: burning of nonhomogeneous coarse-grained fuels; burning of waste timber. SUBSTANCE: boiler furnace has flue gas cooling chamber with ash hopper formed by slopes of walls of cooling chamber. One slope of ash hopper is provided with port. Boiler furnace is also provided with primary furnace communicating with cooling chamber through above-mentioned port. In lower portion of primary furnace there is fire grate located above slotted mouth of ash hopper where preparation and ignition of fuel are effected. Riddlings afterburning chamber located under mouth of ash hopper is provided with outlet nozzle with its help chamber is brought in communication with cooling chamber through mouth of ash hopper. Walls of outlet nozzle are inclined and its longitudinal axis passes along slope of ash hopper which is opposite to slope having the port. Cooling chamber is additionally provided with air supply nozzle located on wall along whose slope axis of outlet nozzle of riddlings afterburning chamber passes. Fuel is first fed to fire grate where it is partially dehumidified and ignited and then it is transferred to cooling chamber where fine and medium particles of fuel are delivered to cooling chamber by air flows escaping from ash hopper mouth. Zone of vortex flow of gases is formed in cooling chamber due to interaction of above-mentioned flow and flow escaping from air nozzle located on wall of cooling chamber. Fuel particles are entrapped in vortex flow where they are burnt out. Large particles lower to riddlings afterburning chamber through nozzle where they are dehumidified and cracked. Particles of fuel thus prepared are carried by undergrate blast air flow and are returned to cooling chamber where they are burnt in vortex flow. EFFECT: enhanced efficiency.

Claims (1)

Предлагаемая топка котла предназначена для сжигания неоднородных крупнозернистых видов топлива. Наиболее эффективно такая топка может быть использована при сжигании отходов обработки древесины. Топка котла содержит камеру охлаждения топочных газов с холодной воронкой, образованной скатами стенок камеры охлаждения. В одном из скатов холодной воронки имеется окно. Топка котла содержит также предтопок, сообщающийся с камерой охлаждения через указанное окно. В нижней части предтопка имеется колосниковая решетка, расположенная выше щелевого устья холодной воронки, где происходит подготовка и воспламенение топлива. Под устьем холодной воронки размещена камера дожигания провала с выходным соплом, с помощью которого камера дожигания провала сообщается через устье холодной воронки с камерой охлаждения. Стенки выходного сопла наклонены так, что его продольная ось проходит вдоль ската холодной воронки, расположенного напротив ската, в котором имеется окно. В камере охлаждения дополнительно установлено сопло для подачи воздуха, размещенное на той стенке, вдоль ската которой проходит ось выходного сопла камеры дожигания провала. При работе этой топки топливо поступает вначале на колосниковую решетку, где частично подсушивается и воспламеняется, а затем перемещается в камеру охлаждения. В камере охлаждения мелкие и средние частицы топлива подаются воздушными потоками, вытекающими из устья холодной воронки, в камеру охлаждения, где благодаря взаимодействию этого потока и потока, вытекающего из воздушного сопла, расположенного на стенке камеры охлаждения, образуется зона вихревого движения газов. Топливные частицы вовлекаются в вихревой поток, где и догорают. Более крупные частицы топлива опускаются через сопло в камеру дожигания провала, где подсушиваются и растрескиваются. Подготовленные частицы топлива подхватываются воздушным потоком нижнего дутья и возвращаются в камеру охлаждения, где и сгорают в вихревом потоке.The proposed boiler furnace is intended for the combustion of heterogeneous coarse-grained fuels. Most effectively, such a furnace can be used in the combustion of wood processing waste. The boiler furnace contains a cooling chamber for flue gases with a cold funnel formed by the slopes of the walls of the cooling chamber. One of the slopes of the cold funnel has a window. The boiler furnace also contains a pre-furnace communicating with the cooling chamber through the specified window. In the lower part of the pre-furnace there is a grate, located above the slotted mouth of the cold funnel, where fuel is prepared and ignited. Under the mouth of the cold funnel there is a afterburning chamber for the failure with an outlet nozzle, with which the afterburning chamber for the failure communicates through the mouth of the cold funnel with the cooling chamber. The walls of the outlet nozzle are inclined so that its longitudinal axis extends along the ramp of the cold funnel located opposite the ramp in which there is a window. In the cooling chamber, an air supply nozzle is additionally installed, located on the wall along the slope of which the axis of the outlet nozzle of the afterburner of the failure passes. During the operation of this furnace, the fuel first enters the grate, where it is partially dried and ignited, and then moves to the cooling chamber. In the cooling chamber, small and medium particles of fuel are supplied by air flows flowing from the mouth of the cold funnel to the cooling chamber, where due to the interaction of this flow and the flow flowing from the air nozzle located on the wall of the cooling chamber, a vortex gas movement zone is formed. Fuel particles are drawn into the vortex flow, where they burn out. Larger particles of fuel are lowered through the nozzle into the afterburner of the dip, where they are dried and cracked. The prepared fuel particles are picked up by the air flow of the lower blast and returned to the cooling chamber, where they are burned in a vortex stream.
RU94044252A 1994-12-09 1994-12-09 Boiler furnace RU2079780C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94044252A RU2079780C1 (en) 1994-12-09 1994-12-09 Boiler furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94044252A RU2079780C1 (en) 1994-12-09 1994-12-09 Boiler furnace

Publications (2)

Publication Number Publication Date
RU94044252A true RU94044252A (en) 1996-12-27
RU2079780C1 RU2079780C1 (en) 1997-05-20

Family

ID=20163208

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94044252A RU2079780C1 (en) 1994-12-09 1994-12-09 Boiler furnace

Country Status (1)

Country Link
RU (1) RU2079780C1 (en)

Also Published As

Publication number Publication date
RU2079780C1 (en) 1997-05-20

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Legal Events

Date Code Title Description
PD4A Correction of name of patent owner