CN210035474U - Low-dust flue gas generation device for burning pyrolysis waste coke - Google Patents
Low-dust flue gas generation device for burning pyrolysis waste coke Download PDFInfo
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- CN210035474U CN210035474U CN201920783876.6U CN201920783876U CN210035474U CN 210035474 U CN210035474 U CN 210035474U CN 201920783876 U CN201920783876 U CN 201920783876U CN 210035474 U CN210035474 U CN 210035474U
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- flue gas
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- waste coke
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a burn low dirt gas generating device with useless burnt of pyrolysis, this low dirt gas generating device include whirlwind section of thick bamboo, main furnace, transition flue, jet burner, overgrate air wind gap and heat-transfer surface etc.. When the device works, primary air carries pyrolysis waste coke to enter the cyclone cylinder through the burner, and secondary air enters the cyclone cylinder through secondary air ports arranged in a tangential or tangential multi-stage mode. The pyrolysis waste coke is burnt in the cyclone cylinder to generate high-temperature flue gas, most of molten particles in the flue gas are discharged from a slag discharge port in a liquid slag form, and a small number of particles are captured by a slag trap tube bundle in the transition flue. The high-temperature flue gas is cooled to the required temperature through heat exchange of a heat exchange surface in the main hearth. The utility model discloses a low dirt flue gas generating device catches the sediment rate height, can produce low dirt flue gas, can alleviate the heat transfer area deposition slagging scorification that follow-up process equipment arouses because of the dust content height. And the combustion of the low-dust flue gas generating device mainly occurs in the cyclone cylinder, and the heat exchange surface in the main hearth can be flexibly arranged without influencing the combustion.
Description
Technical Field
The utility model belongs to the coal chemical industry field especially relates to a low dirt flue gas generating device who fires with useless burnt of pyrolysis.
Background
Coal is an important primary energy source in China, wherein the low-rank coal has large reserve and high occupancy rate, low-temperature pyrolysis, classification and quality-grading conversion are carried out on the low-rank coal to produce upgraded coal, high-efficiency utilization of the low-rank coal can be realized, the dependence of domestic oil gas on the outside is effectively reduced, and the national oil gas safety guarantee is improved.
A large amount of pyrolysis waste coke is generated in the low-temperature pyrolysis and grading quality-dividing conversion process of the low-rank coal, huge energy waste is caused, the high-temperature low-dust flue gas required by the subsequent process generated by burning the pyrolysis waste coke can effectively improve the utilization rate of energy, and the production cost is saved. Pilot test shows that when the traditional solid-state slagging pulverized coal boiler and the circulating fluidized bed boiler burn and pyrolyze waste coke, the boiler hearth and the cyclone separator are easy to generate serious slag bonding due to low ash melting point of fuel. Meanwhile, due to the fact that the dust content of the generated smoke is too high, serious dust deposition can occur in subsequent coal chemical industry process equipment such as a rotary kiln, and normal and safe operation of the coal chemical industry process equipment is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a burn the useless burnt of pyrolysis in coal chemical industry process to for follow-up technology provides the low dirt gas generator who burns the useless burnt of pyrolysis.
The utility model discloses a following technical scheme realizes:
a low-dust smoke generating device for burning pyrolysis waste coke comprises a cyclone cylinder, a main hearth, a transition flue, a burner, a primary air port, a secondary air port, a slag discharge port, a plurality of heat exchange surfaces and a smoke generating device outlet; the cyclone cylinder is used as a main combustion area, the main hearth is used as a burnout chamber, the cyclone cylinder is connected with the main hearth through a transition flue, a plurality of rows of slag catching pipes are arranged in the transition flue in a staggered mode, the burner is arranged at the top of the cyclone cylinder, the primary air inlet is arranged at the air inlet of the burner, the secondary air inlet is arranged at the tangential direction or the tangential direction of the side wall of the cyclone cylinder, the slag discharging port is arranged at the bottom of the cyclone cylinder, the outlet of the smoke generating device is arranged on the side surface of the top of the main hearth, and the multistage heat exchange surface is arranged at.
The utility model discloses a further improvement lies in, cyclone section of thick bamboo wall is the pin water-cooling wall, lays refractory material between the pin water-cooling wall.
The utility model discloses a further improvement lies in, arranges the cinder notch below and has seted up the sediment well.
The utility model discloses a further improvement lies in, this low dust flue gas generating device arranges one or more whirlwind section of thick bamboo.
The utility model discloses further improvement lies in, the cyclone lateral wall tangential or cut to arranging multistage overgrate air wind gap.
The utility model discloses a further improvement lies in, has arranged multistage heat transfer surface in the main furnace.
The utility model discloses following profitable technological effect has:
the utility model provides a pair of burn with low dirt flue gas generating device of useless burnt of pyrolysis, the blade of primary air installation in the fuel nozzle is revolved in advance, and the overgrate air tangential or cut to arranging, can produce strong whirlwind current in the whirlwind section of thick bamboo, improve the sediment rate of catching of whirlwind section of thick bamboo. The secondary air is sent in multiple stages, so that the phenomenon that the rotational flow strength is attenuated too fast along the airflow direction of the cyclone cylinder can be avoided. Meanwhile, the slag catching pipe is arranged in the transition flue, so that the slag catching rate can be further improved, and the dust content of the generated high-temperature flue gas is reduced. Because the combustion is mainly carried out in the cyclone cylinder, the heat transfer is mainly carried out in the main hearth, and the heat exchange surface can be arranged in the main hearth according to the requirement to generate the flue gas with the temperature required by the coal chemical process.
To sum up, the utility model discloses a useless burnt of pyrolysis gets into the whirlwind section of thick bamboo through the burner that has the blade through cold wind carries, and the useless burnt cold wind of preheating of pyrolysis, the whirlwind section of thick bamboo is sent into through the tangent or cut to the multistage overgrate air wind gap of arranging to the overgrate air. The airflow rotates strongly in the cyclone, the molten fuel particles are thrown to the wall surface, the hot slag is discharged out of the cyclone through the slag discharge port, and the heat of the liquid slag can be used for preheating cold secondary air. High-temperature flue gas generated by burning the pyrolysis waste coke enters the main hearth after the dust content is further reduced by a slag trapping tube bundle arranged in the transition flue. After the high-temperature flue gas entering the main hearth is burnt out, the high-temperature flue gas is subjected to heat exchange through the multi-stage heat exchange surfaces of the main hearth to reach the temperature required by the process and is discharged through an outlet of the flue gas generating device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
the device comprises a cyclone 1, a main hearth 2, a transition flue 3, a burner 4, a primary air port 5, a secondary air port 6, a slag catching pipe 7, a heat exchange surface 8, a flue gas generating device outlet 9, an upper folding flame angle 10, a lower folding flame angle 11, a slag well 12 and a slag discharge port 13.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a pair of burn low dust flue gas generating device with pyrolysis waste coke, include as the cyclone 1 of main combustion area, as the main furnace 2 of burn-out room and connect cyclone and main furnace's transition flue 3, still include spray burner 4, primary air wind gap 5, overgrate air wind gap 6, row's cinder notch 13, a plurality of heat-transfer surface 8, flue gas generating device export 9.
Further, one or more cyclones 1 can be arranged on the wall surface of the main hearth 2.
Furthermore, secondary air ports 6 are arranged on the side wall of the cyclone cylinder 1 in a tangential or tangential direction, and secondary air is sent in a grading manner.
Furthermore, a primary air port 5 in a burner 4 at the top of the cyclone 1 is provided with a blade with a set angle.
Furthermore, the wall of the cyclone cylinder 1 is a pin water-cooled wall, and refractory materials are laid between the pin water-cooled walls.
Further, a slag discharge port 13 is arranged at the bottom of the cyclone cylinder 1.
Further, a plurality of rows of slag catching pipes 7 are arranged in the transition flue 3 in a staggered manner.
Further, the main furnace is provided with a lower folded flame angle 11 and an upper folded flame angle 10.
Furthermore, a multi-stage heat exchange surface 8 is arranged in the main hearth.
The utility model relates to a burn and produce device of low dust flue gas with useless burnt of pyrolysis, the during operation, include:
the cold primary air carries the pyrolysis waste coke to enter the cyclone cylinder through a primary air port of a burner with blades, the pyrolysis waste coke can preheat the cold primary air, and the secondary air is sent into the cyclone cylinder in a grading way through a secondary air port arranged in a tangential or tangential way. The airflow rotates strongly in the cyclone, the average combustion temperature in the cyclone is above 1600 ℃, most of the melted particles are thrown to the wall surface and then are in hot slag which is discharged out of the cyclone through a slag discharge port, and the heat of the liquid slag can be used for preheating cold secondary air. High-temperature flue gas generated by burning the pyrolysis waste coke enters the main hearth after the dust content is further reduced by a slag trapping tube bundle arranged in the transition flue. After the high-temperature flue gas is burnt out, the high-temperature flue gas is subjected to heat exchange through the multi-stage heat exchange surfaces of the main hearth to reach the temperature required by the process, and then the high-temperature flue gas is discharged through an outlet of the flue gas generating device.
The utility model discloses a burn and use useless burnt device that produces low dust flue gas of pyrolysis, cold wind carry the temperature for the pyrolysis of about 300 ℃ useless burnt and get into the whirlwind section of thick bamboo through the burner that the installation angle is 30-50 blades, cold wind powder temperature is about 120 ℃. The secondary air is sent into the cyclone cylinder in a grading way, and the proportion of the primary secondary air can be 50 percent. The temperature of secondary air preheated by the liquid slag can be increased by about 10 ℃. The slag capturing rate of the cyclone cylinder is 70-80%. The smoke generating device is provided with 6 cyclones, burns about 80t/h of pyrolysis waste coke and can generate about 870000Nm of low-dust smoke with the temperature of about 950 DEG C3/h。
In summary, adopt the utility model discloses a burn and produce flue gas generating device of low dust flue gas with useless burnt pyrolysis, can burn the useless burnt low dust flue gas that produces the required temperature of coal chemical industry technology of pyrolysis, compare in other combustion methods burning pyrolysis useless burnt great advantage.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, however, these equivalents also fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. A low-dust flue gas generating device for burning pyrolysis waste coke is characterized by comprising a cyclone cylinder (1), a main hearth (2), a transition flue (3), a burner (4), a primary air port (5), a secondary air port (6), a slag discharge port (13), a plurality of heat exchange surfaces (8) and a flue gas generating device outlet (9); wherein the content of the first and second substances,
cyclone (1) is as the main combustion area, main furnace (2) is as the burnout chamber, cyclone (1) and main furnace (2) are connected through transition flue (3), the staggered arrangement has multirow to catch sediment pipe (7) in transition flue (3), combustor (4) are arranged at cyclone (1) top, primary air wind gap (5) are arranged at combustor (4) air intake, secondary air wind gap (6) are arranged at cyclone (1) lateral wall tangential or cut to, arrange sediment mouth (13) and arrange in cyclone (1) bottom, flue gas generating device export (9) are arranged in main furnace (2) top side, upper portion in main furnace (2) is arranged in multistage heat transfer surface (8).
2. The low-dust flue gas generator burning pyrolyzed waste coke as set forth in claim 1, wherein said cyclone (1) has a wall of pin water-cooled walls, and refractory material is laid between the pin water-cooled walls.
3. The low-dust flue gas generation device for combusting pyrolysis waste coke according to claim 1, wherein a slag well (12) is arranged below the slag discharge port (13).
4. The low-dust flue gas generator using pyrolyzed waste coke as claimed in claim 1, wherein the low-dust flue gas generator is arranged with one or more cyclones (1).
5. The low dust flue gas generating apparatus using pyrolysis waste coke of claim 1, wherein the cyclone (1) has a plurality of stages of secondary air ports (6) arranged on the side wall in a tangential or tangential direction.
6. The low dust flue gas generator using pyrolysis waste coke of claim 1, characterized in that a multi-stage heat exchange surface (8) is arranged in the main furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920783876.6U CN210035474U (en) | 2019-05-28 | 2019-05-28 | Low-dust flue gas generation device for burning pyrolysis waste coke |
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| CN201920783876.6U CN210035474U (en) | 2019-05-28 | 2019-05-28 | Low-dust flue gas generation device for burning pyrolysis waste coke |
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| CN210035474U true CN210035474U (en) | 2020-02-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094718A (en) * | 2019-05-28 | 2019-08-06 | 武汉武锅能源工程有限公司 | A kind of low dirt smoke generating apptss and method using pyrolysis waste coke |
| CN113714246A (en) * | 2021-08-03 | 2021-11-30 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
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2019
- 2019-05-28 CN CN201920783876.6U patent/CN210035474U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094718A (en) * | 2019-05-28 | 2019-08-06 | 武汉武锅能源工程有限公司 | A kind of low dirt smoke generating apptss and method using pyrolysis waste coke |
| CN113714246A (en) * | 2021-08-03 | 2021-11-30 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
| CN113714246B (en) * | 2021-08-03 | 2022-12-23 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
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