SU1188451A1 - Method of burning low-grade coal powder - Google Patents
Method of burning low-grade coal powder Download PDFInfo
- Publication number
- SU1188451A1 SU1188451A1 SU833534003A SU3534003A SU1188451A1 SU 1188451 A1 SU1188451 A1 SU 1188451A1 SU 833534003 A SU833534003 A SU 833534003A SU 3534003 A SU3534003 A SU 3534003A SU 1188451 A1 SU1188451 A1 SU 1188451A1
- Authority
- SU
- USSR - Soviet Union
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- oxygen
- burning
- pulsating
- zone
- burning zone
- Prior art date
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Abstract
СПОСОБ СЖИГАНИЯ НИЗКОСОРТНОЙ УГОЛЬНОЙ ПЫЛИ путем пульсирующей подачи аэросмеси в зону сжигани и последующего дожигани несгоревшей пыли, отличающийс тем, что, с целью повышени экономичности путем снижени недожога, в зону сжигани дополнительно ввод т пульсирующим потоком кислород, а в зону дожигани - также пульсирующим потоком водород. /7аа (Л 00 оо ; СП SofcfA METHOD FOR COMBUSTION OF LOW-HAND COAL DUST by pulsating supply of the air mixture to the combustion zone and subsequent burning of unburned dust, characterized in that, in order to increase efficiency by reducing the underburning, oxygen is additionally introduced into the burning zone, and oxygen is also pulsed into the burning zone, and pulsed oxygen is introduced into the burning zone, and the pulsating flow is additionally fed with a pulsating flow of oxygen into the burning zone, and a burning stream is supplied with oxygen in the burning zone, . / 7aa (L 00 oo; SP Sofcf
Description
1 Изобретение относитс к области сжигани топлива и может быть использовано на тепловых электростан ци х. Целью изобретени вл етс повы шение экономичности путем снижени недожига. На чертеже: схематически изображено устройство дл осуществлени способа сжигани низкосортной угол ной пыли, продольный разрез . Устройство содержит топку 1, в нижней части которой в зоне сжигани размещена пылеугольна горелка 2, а в верхней части в зоне дожигани - кольцева перфорированна труба 3 подвода водорода . Топка 1 снабжена радиационньпу1й и конвективными поверхност ми нагрева 4 и 5. Труба 3 дл подвода водорода соединена с газгольдером через дозатор-прерыватель 7. Горел 12 ка 2 соединена с газгольдером 8 через дозатор-прерыватель 9. Способ сжигани низкосортной угольной пыли осуществл етс следующим образом. Через горелку 2 в зону сжигани топки 1 осуществл етс пульсирующа подача азросмеси совместно с пульсирующим потоком кислорода. Аэросмесь в зоне сжигани сгорает , а дымовые газы с несгоревшими частичками угл подымаютс в верхнюю часть топки 1 в зону дожигани , куда через трубу 3 пульсирующим потоком вводитс водород. Пульсационна подача кислорода осуществл етс с частотой, синхронной по времени с периодом активного горени угольной пыли в факеле. Кислород и водород в зоне дожигани образуют с углеродом топлива горючие углеводороды и окислы, способствующие снижению недожога.1 The invention relates to the field of fuel combustion and can be used in thermal power plants. The aim of the invention is to improve the economy by reducing underburning. In the drawing: schematically shows a device for carrying out the method of burning low-grade coal dust, a longitudinal section. The device contains a furnace 1, in the lower part of which a pulverized coal burner 2 is located in the combustion zone, and in the upper part in the afterburning zone - a circular perforated tube 3 of hydrogen supply. The furnace 1 is equipped with radiating and convective heating surfaces 4 and 5. A pipe 3 for supplying hydrogen is connected to a gas tank through a metering interrupter 7. A burner 12 2 is connected to a gas tank 8 via a metering interrupter 9. The method of burning low-grade coal dust is as follows . Through the burner 2 into the combustion zone of the furnace 1, a pulsating feed of the mixture is carried out together with a pulsating stream of oxygen. The aerosol in the combustion zone burns, and the flue gases with unburned coal particles rise in the upper part of the furnace 1 into the afterburning zone, where hydrogen is introduced through a pipe 3 in a pulsating flow. The pulsation supply of oxygen is carried out at a frequency synchronous in time with the period of active burning of coal dust in the flare. Oxygen and hydrogen in the afterburning zone form combustible hydrocarbons and oxides with the carbon of the fuel to reduce the underburning.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU833534003A SU1188451A1 (en) | 1983-01-07 | 1983-01-07 | Method of burning low-grade coal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU833534003A SU1188451A1 (en) | 1983-01-07 | 1983-01-07 | Method of burning low-grade coal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1188451A1 true SU1188451A1 (en) | 1985-10-30 |
Family
ID=21043382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU833534003A SU1188451A1 (en) | 1983-01-07 | 1983-01-07 | Method of burning low-grade coal powder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1188451A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834644A (en) * | 1987-02-24 | 1989-05-30 | Snow Corporation | Premix oven pulsing control system |
-
1983
- 1983-01-07 SU SU833534003A patent/SU1188451A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 249534, кл. F 23 С 5/28, 1966. Авторское свидетельство СССР № 918670, кл. F 23 D 12/34, 1980. ytff/rt * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834644A (en) * | 1987-02-24 | 1989-05-30 | Snow Corporation | Premix oven pulsing control system |
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