CN2921744Y - Rotary kiln low-pressure gas combustor - Google Patents
Rotary kiln low-pressure gas combustor Download PDFInfo
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- CN2921744Y CN2921744Y CN 200620200341 CN200620200341U CN2921744Y CN 2921744 Y CN2921744 Y CN 2921744Y CN 200620200341 CN200620200341 CN 200620200341 CN 200620200341 U CN200620200341 U CN 200620200341U CN 2921744 Y CN2921744 Y CN 2921744Y
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- gas
- spinning disk
- rotary kiln
- pressure gas
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Abstract
A rotary kiln low-pressure gas combustor is characterized in that: the utility model comprises a central burner tip, a gas snout spinning disk and an air snout spinning disk, wherein, the gas snout spinning disk and the air snout spinning disk are at an angle of 15 to 30 degrees; the diameter of the central burner tip is more than or equal to 600 mm. The utility model has the advantages of that: under the conditions of cancelling gas compression station and low-pressure gas, the rotary kiln low-pressure gas combustor not only can meet production requirements for stable flame intensity and length and temperature of gas burner tip, but also can ensure efficient production with low consumption.
Description
Technical field
The utility model relates to a kind of rotary kiln gas-fired system that is used for metallurgy industry, especially a kind of rotary kiln low-pressure gas burner.
Background technology
China common rotary kiln gas-fired system of metallurgy industry generally adopts around rotary kiln and builds a coal gas pressurizing point at present, disposes several powerful roots blowers, converts low-pressure gas to high pressure gas and could satisfy production requirement.And there is following shortcoming in this high pressure gas combustion system: 1, each startup-shutdown of coal gas pressurizing point program complexity that operates, and labour intensity is big, and needs the special messenger to guard; 2, combustion system burner flame is concentrated, the burning spouting velocity is fast, the flame jet length is far away, the high-temperature region prolongs to the kiln tail, when rotary kiln reaches 1250 ℃～1300 ℃ technological temperature, drying grate preheating section temperature before the kiln tail reaches 1150 ℃～1200 ℃, and drying grate equipment requires long-term serviceability temperature can not be higher than 1100 ℃, so operation is big to equipment damage under the frequent too high temperature of drying grate, and the drying grate chain link is often because of burning out stop production to overhaul; 3, combustion system heats up slowly, will reach normal sintering temperature after the igniting, must lean on the central cooler hot blast to replenish a large amount of heats, and this process approximately needs waste a large amount of coal gas more than 24 hours, and more influence is produced; 4, pressurizing point system equipment fault is many, and is big to producing influence, maintenance frequency and maintenance cost height, and electric quantity consumption is big.
Goal of the invention
The purpose of this utility model just provide a kind of can be at cancellation coal gas pressurizing point, guarantee that under low-pressure coal gas condition the flame intensity of coal gas burner, length are stable, temperature reaches the rotary kiln low-pressure gas burner that production needs.
Solution of the present utility model is such: include central burner, gas port spinning disk and air port spinning disk, gas port spinning disk and air port spinning disk angle are 15～30 °.
In such scheme, the diameter of described central burner can 〉=600mm, make rotary kiln and drying grate head temperature to be controlled at easily below 1050 ℃, and the flame intensity radius reduced, eliminate the local burn-off phenomenon of furnace lining, stopped kiln lining ring formation situation.
The utility model has the advantages that: 1, cancelled the coal gas pressurizing point, reduced working strength of workers, reduced the unsafe factor of producing simultaneously, can not influence production because of the frequent fault of gas pressure system; 2, change gas port spinning disk and air port spinning disk angle, and after strengthening the diameter of central burner, make in the course of work in the kiln and the temperature difference of kiln tail generally about 250 ℃, when rotary kiln reaches 1300 ℃, kiln tail and drying grate head temperature can be controlled at below 1050 ℃ easily, and rotary kiln and drying grate life-span are increased substantially greatly, and owing to the flame intensity radius reduces, eliminate the local burn-off phenomenon of furnace lining, stopped kiln lining ring formation situation; 3, combustion system can reach technological requirement in several hours, and temperature can satisfy at short notice produces needs; 4, can reduce investment, and reduce downtime, energy savings increases economic benefit.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a structural representation of the present utility model.
The specific embodiment
The utility model includes gas inlet pipe 1, central burner 2, air intlet pipe 3, gas port spinning disk 4, air port spinning disk 5.
In embodiment of the present utility model shown in Figure 1, fully phase out gas pressure system, with the enlarged diameter of central burner 2 to more than the 600mm, increase the quantity of coal gas spinning disk 4 simultaneously, the angle of coal gas spinning disk 4 and air swirl sheet 5 all is adjusted between 15～30 ° according to the length of flame, intensity, width.Directly supply burner combustion with former pipe network coal gas, can satisfy the technological temperature requirement, can guarantee low-consumption high-efficiency production again, fully phase out gas pressure system, coal gas burning under the low pressure condition of 〉=2kpa can reach required temperature.
After cancellation coal gas pressurizing point system, can reduce about 1,000,000 yuan of investments, and three powerful roots blowers that are used to dispose the coal gas pressurizing point have been lacked, if start shooting 300 days per year, every typhoon machine is 30 kilowatts of power consumptions and 0.5 yuan of calculation of every degree electricity per hour, can save 32.4 ten thousand yuan the electricity charge.After using the utility model, can reduce 300h downtime every year, produces pellet 200t/h with 1,200,000 t/ pellet production lines, and every year can voluminous pellet 60000t, by 200 yuan of calculating of pellet profit per ton, can create 12,000,000 yuan of profits more.Can also save simultaneously 1,000,000 yuan of drying grate chain link, roots blower spare part and refractory material expenses.
Claims (2)
1. rotary kiln low-pressure gas burner, include central burner (2), gas port spinning disk (4) and air port spinning disk (5), it is characterized in that: its gas port spinning disk (4) and air port spinning disk (5) angle are 15～30 °.
2. rotary kiln low-pressure gas burner according to claim 1 is characterized in that: the diameter 〉=600mm of described central burner (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200341 CN2921744Y (en) | 2006-04-07 | 2006-04-07 | Rotary kiln low-pressure gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200341 CN2921744Y (en) | 2006-04-07 | 2006-04-07 | Rotary kiln low-pressure gas combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921744Y true CN2921744Y (en) | 2007-07-11 |
Family
ID=38254224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200341 Expired - Fee Related CN2921744Y (en) | 2006-04-07 | 2006-04-07 | Rotary kiln low-pressure gas combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921744Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217012A (en) * | 2013-04-09 | 2013-07-24 | 贵州安凯达新型建材有限责任公司 | Energy-saving rotary kiln |
-
2006
- 2006-04-07 CN CN 200620200341 patent/CN2921744Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217012A (en) * | 2013-04-09 | 2013-07-24 | 贵州安凯达新型建材有限责任公司 | Energy-saving rotary kiln |
| CN103217012B (en) * | 2013-04-09 | 2015-10-28 | 贵州安凯达实业股份有限公司 | A kind of energy-conservation rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20100407 |