CN109485028B - Needle-shaped calcined petroleum coke production process and calciner for production thereof - Google Patents
Needle-shaped calcined petroleum coke production process and calciner for production thereof Download PDFInfo
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- CN109485028B CN109485028B CN201910007849.4A CN201910007849A CN109485028B CN 109485028 B CN109485028 B CN 109485028B CN 201910007849 A CN201910007849 A CN 201910007849A CN 109485028 B CN109485028 B CN 109485028B
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- China
- Prior art keywords
- flue gas
- flue
- petroleum coke
- needle
- layer
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- 239000002008 calcined petroleum coke Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000003546 flue gas Substances 0.000 claims abstract description 72
- 238000001354 calcination Methods 0.000 claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 239000003345 natural gas Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000002006 petroleum coke Substances 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
The invention provides a needle-shaped calcined petroleum coke production process and a calciner for the production thereof, and in particular relates to the technical field of petroleum coke production, wherein the calciner comprises a furnace body and a flue, a plurality of groups of parallel-distributed tank bodies are arranged in the furnace body along the length direction, each group of tank bodies consists of two tank bodies distributed along the width direction of the furnace body, a plurality of heating walls are arranged in the furnace body, two adjacent groups of tank bodies are separated by the heating walls, a heating wall is respectively arranged in the front wall and the rear wall, a volatilization layer, a calcination layer and a cooling layer which are mutually communicated and are respectively formed by flame channels are sequentially arranged in the heating walls from top to bottom, the volatilization layer is communicated with a natural gas pipeline, the flue comprises a plurality of flue gas channels and a flue gas total channel, and the cooling layer is communicated with the flue gas total channel through the flue gas channels. According to the invention, natural gas is introduced into the pot-type calciner to mix the natural gas with volatile matters in the needle-shaped calcined petroleum coke for combustion, so that the temperature of the calcined layer reaches 1400 ℃, and the true density of the finished product reaches 2.15.
Description
Technical Field
The invention belongs to the technical field of petroleum coke production, and particularly relates to a needle-shaped calcined petroleum coke production process and a calciner for production.
Background
The needle-shaped calcined petroleum coke is a material for high-end electrodes, when the needle-shaped calcined petroleum coke is calcined by using a rotary kiln, the burning loss is large, when the needle-shaped calcined petroleum coke is calcined by using a pot calciner, the volatile matters in the needle-shaped calcined petroleum coke are burnt to less than 1400 ℃, the calcining effect is poor, and the true density of a finished product can only reach 2.13.
Therefore, there is an urgent need for a needle calcined petroleum coke production process and a calciner for the same that can solve the existing problems.
Disclosure of Invention
The invention aims to provide a needle-shaped calcined petroleum coke production process and a calciner for production, wherein the pot-type calciner is used for calcining, natural gas is introduced into the pot-type calciner to mix the natural gas with volatile matters in the needle-shaped calcined petroleum coke for combustion, so that the temperature of a calcined layer reaches 1400 ℃.
The invention provides the following technical scheme:
the needle-shaped calcined petroleum coke producing process includes calcining in pot calciner, and introducing natural gas into the pot calciner to mix with volatile matters in the needle-shaped calcined petroleum coke for burning to reach the temperature of 1400 deg.c.
The utility model provides a needle calcine petroleum coke production is with calcining furnace, includes furnace body and flue, the furnace body is built by firebrick, the furnace body is enclosed by preceding wall, two side walls and back wall, be equipped with a plurality of groups in the furnace body follow preceding wall to the jar body that back wall direction side by side distributes, every group the jar body is by two edges the width direction of furnace body distributes the jar body is constituteed, be equipped with a plurality of heating walls in the furnace body, two adjacent groups the jar body passes through the heating wall keeps apart, the preceding wall with be equipped with one respectively in the back wall the heating wall is equipped with volatile layer, calcination layer and the cooling layer of intercommunication in proper order from the top down, the volatile layer calcination layer with the cooling layer comprises a plurality of flues, the volatile layer is linked together with natural gas pipeline, the flue includes a plurality of flue gas branch way and a flue gas total flue, the cooling layer passes through flue gas branch way with flue gas total way intercommunication.
Preferably, the length of the inner cavity of the furnace body is 2 meters.
Preferably, the flue gas main channel is provided with a flue gas branch channel, the flue gas branch channel is provided with a first control valve for controlling on or off, an annular heating flue is arranged in the heating wall, the heating flue is sleeved outside the volatilizing layer, two side walls are respectively provided with a flue gas inlet channel and a flue gas outlet channel, the flue gas inlet end and the flue gas outlet end of the heating flue are respectively communicated with the flue gas inlet end and the flue gas outlet end of the flue gas inlet channel, the flue gas outlet end of the flue gas outlet channel is communicated with the flue gas main channel, the flue gas outlet end of the flue gas outlet channel is provided with a second control valve for controlling on or off, and in two adjacent calcining furnaces for producing needle-shaped calcined petroleum coke, the flue gas inlet connecting port of the flue gas inlet channel in one calcining furnace for producing needle-shaped calcined petroleum coke is communicated with the flue gas outlet end of the flue gas branch channel in the other calcining furnace for producing needle-shaped calcined petroleum coke.
Preferably, the lower extreme of the jar body is equipped with the discharge end, be equipped with rotatory material discharging machine in the discharge end, rotatory material discharging machine includes motor and pivot, be equipped with a plurality of crushing teeth in the pivot, the pivot passes the lateral wall of discharge end with the motor is connected, the motor drives the pivot rotates.
Preferably, the rotating shaft is hollow, a circulating water pipe is arranged in the rotating shaft, a first gear is arranged at one end of the rotating shaft, a second gear is arranged on the shaft of the motor, and the first gear is meshed with the second gear.
The beneficial effects of the invention are as follows: the pot-type calciner is used for calcining the needle-shaped calcined petroleum coke, natural gas is introduced into the pot-type calciner through a natural gas pipeline to mix the natural gas with volatile matters in the needle-shaped calcined petroleum coke for combustion, so that the temperature of a calcining layer reaches 1400 ℃, the needle-shaped calcined petroleum coke is fully calcined, and the true density reaches 2.15.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a side view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a longitudinal cross-sectional view of the present invention.
Wherein the figures are marked as: 1. a furnace body; 2. a front wall; 3. a side wall; 4. a rear wall; 5. a tank body; 6. a heating wall; 7. a volatile layer; 8. calcining the layer; 9. a cooling layer; 10. a flame path; 11. a natural gas pipeline; 12. flue gas separation; 13. a flue gas main channel; 14. flue gas branch; 15. a first control valve; 16. heating the flue; 17. a flue gas inlet; 171. a smoke inlet connector; 18. a flue gas outlet; 19. a second control valve; 20. a discharge end; 21. a rotary discharging machine; 211. a motor; 212. a rotating shaft; 213. crushing teeth; 214. a first gear; 215. a second gear; 216. and a circulating water pipe.
Detailed Description
The needle-shaped calcined petroleum coke producing process includes calcining in a pot calciner, and introducing natural gas into the pot calciner to mix with volatile matters in the needle-shaped calcined petroleum coke for combustion to reach the temperature of 1400 deg.c in the calcining layer 8. Compared with the traditional rotary kiln, the burning loss is reduced, 1.5 tons of raw materials are needed for 1 ton of products calcined by the rotary kiln, and only 1.32 tons of raw materials are needed for 1 ton of products calcined by the method. The pot calciner used therein may be composed of the following structure, namely, a calciner for needle calcined petroleum coke production, the specific structure is as follows:
as shown in fig. 1-3, a calciner for producing needle-shaped calcined petroleum coke comprises a furnace body 1 and a flue, wherein the furnace body 1 is built by refractory bricks, the furnace body 1 is surrounded by a front wall 2, two side walls 3 and a rear wall 4, a plurality of groups of tank bodies 5 which are distributed in parallel from the front wall 2 to the rear wall 4 are arranged in the furnace body 1, each group of tank bodies 5 consists of two tank bodies 5 which are distributed along the width direction of the furnace body 1, a plurality of heating walls 6 are arranged in the furnace body 1, two adjacent groups of tank bodies 5 are isolated by the heating walls 6, one heating wall 6 is respectively arranged in the front wall 2 and the rear wall 4, a volatilizing layer 7, a calcining layer 8 and a cooling layer 9 which are mutually communicated are sequentially arranged in the heating walls 6 from top to bottom, each volatilizing layer 7, each calcining layer 8 and each cooling layer 9 consists of a plurality of flame paths 10, each volatilizing layer 7 generally comprises two flame paths 10, each cooling layer 9 comprises two flame paths 10, each flame path 10 positioned in the middle is a calcining layer, each volatilizing layer 7 is communicated with a natural gas pipeline 11, each flue comprises a plurality of smoke paths 12 and one total smoke 13 and each total smoke 13 is communicated with each smoke 13 through each smoke 13. Under normal conditions, the volatile layer 7 is heated to 800-1000 ℃ by means of an external gas heating source, so that volatile matters in petroleum coke in the tank body 5 volatilize out for combustion, but the volatile matters in the volatile matters can only reach 1200 ℃ after entering the calcining layer 8, the calcining effect is poor, the true density of the calcined needle-shaped calcined petroleum coke is only 2.13, the temperature of the calcining layer 8 can reach 1400 ℃ after natural gas is added, and the volatile matters can be sufficiently calcined to enable the true density of a needle-shaped calcined petroleum coke finished product to reach 2.15.
Specifically, the length of the inner cavity of the furnace body 1 is 2 meters. That is, the distance between the front wall 2 and the rear wall 4 is 2 meters, 1.8 meters is generally used in the prior art, and after the length is increased, more tank bodies 5 can be put in, so that the productivity is increased.
Specifically, the flue gas main channel 13 is provided with a flue gas branch channel 14, the flue gas branch channel 14 is provided with a first control valve 15 for controlling on or off, an annular heating flue 16 is arranged in the heating wall 6, the heating flue 16 is sleeved outside the volatilizing layer 7, two side walls 3 are respectively provided with a flue gas inlet channel 17 and a flue gas outlet channel 18, the inlet end and the outlet end of the heating flue 16 are respectively communicated with the outlet end of the flue gas inlet channel 17 and the inlet end of the flue gas outlet channel 18, the outlet end of the flue gas outlet channel 18 is communicated with the flue gas main channel 13, the outlet end of the flue gas outlet channel 18 is provided with a second control valve 19 for controlling on or off, and in two adjacent calcining furnaces for needle-shaped calcined petroleum coke production, the inlet connection port 171 of the flue gas inlet channel 17 in one calcining furnace for needle-shaped calcined petroleum coke production is communicated with the outlet end of the flue gas branch channel 14 in the other calcining furnace for needle-shaped calcined petroleum coke production. When petroleum coke is just added, the temperature of the volatilization layer 7 needs to be raised to 800-1000 ℃ by burning external gas, at this time, the flue gas generated by the adjacent opened needle-shaped calcining petroleum coke production calciner (the flue gas which is generally discharged to 850-900 ℃) enters the flue gas inlet channel 17 on the needle-shaped calcining petroleum coke production calciner through the flue gas branch channel 14 on the flue gas inlet channel, and then enters the heating flue 16 to perform heat exchange on the volatilization layer 7 of the needle-shaped calcining petroleum coke production calciner, so that the temperature of the volatilization layer 7 is raised, the gas is saved, and energy is saved.
Specifically, the lower extreme of jar body 5 is equipped with discharge end 20, is equipped with rotatory discharger 21 in the discharge end 20, and rotatory discharger 21 includes motor 211 and pivot 212, is equipped with a plurality of crushing teeth 213 on the pivot 212, and pivot 212 passes the lateral wall of discharge end 20 and is connected with motor 211, and motor 211 drives pivot 212 rotation. The crushing teeth 213 simply crush the finished needle calcined petroleum coke to avoid blocking the discharge port of the discharge end 20.
Specifically, the rotating shaft 212 is hollow, a circulating water pipe 216 is arranged in the rotating shaft 212, a first gear 214 is arranged at one end of the rotating shaft 212, a second gear 215 is arranged on the shaft of the motor 211, and the first gear 214 is meshed with the second gear 215. The first gear 214 and the second gear 215 may also be connected by a chain, and cold water is introduced into the circulating water pipe 216 to ensure the temperature of the rotating shaft 212 and ensure the normal operation thereof.
The above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The needle-shaped calcined petroleum coke production process is characterized in that a pot-type calciner is used for calcining, natural gas is introduced into the pot-type calciner to mix the natural gas with volatile matters in the needle-shaped calcined petroleum coke for combustion, so that the temperature of a calcined layer reaches 1400 ℃;
the calciner for producing the needle-shaped calcined petroleum coke comprises a furnace body and a flue, wherein the furnace body is built by refractory bricks, the furnace body is surrounded by a front wall, two side walls and a rear wall, a plurality of groups of tank bodies which are distributed in parallel from the front wall to the rear wall are arranged in the furnace body, each group of tank bodies consists of two tank bodies which are distributed along the width direction of the furnace body, a plurality of heating walls are arranged in the furnace body, two adjacent groups of tank bodies are isolated by the heating walls, one heating wall is respectively arranged in the front wall and the rear wall, a volatilizing layer, a calcining layer and a cooling layer which are mutually communicated are sequentially arranged in the heating walls from top to bottom, each volatilizing layer, each calcining layer and each cooling layer are formed by a plurality of flame paths, each volatilizing layer is communicated with a natural gas pipeline, each flue comprises a plurality of flue gas channels and a flue gas total channel, and each cooling layer is communicated with each flue gas channel by the flue gas channels;
the flue gas main flue is provided with a flue gas branch flue, the flue gas branch flue is provided with a first control valve for controlling on/off, an annular heating flue is arranged in the heating wall, the heating flue is sleeved outside the volatilizing layer, two side walls are respectively provided with a flue gas inlet flue and a flue gas outlet flue, the flue gas inlet end and the flue gas outlet end of the heating flue are respectively communicated with the flue gas inlet end and the flue gas outlet end of the flue gas inlet flue, the flue gas outlet end of the flue gas outlet flue is communicated with the flue gas main flue, the flue gas outlet end of the flue gas outlet flue is provided with a second control valve for controlling on/off, and in two adjacent calcining furnaces for needle-shaped calcining petroleum coke production, the flue gas inlet connecting ports of the flue gas inlet flue are communicated with the flue gas outlet end of the flue gas branch flue in another calcining furnace for needle-shaped calcining petroleum coke production.
2. The process for producing needle calcined petroleum coke according to claim 1, wherein the length of the inner cavity of the furnace body is 2 m.
3. The needle calcined petroleum coke production process according to claim 1, wherein a discharge end is arranged at the lower end of the tank body, a rotary discharging machine is arranged in the discharge end, the rotary discharging machine comprises a motor and a rotating shaft, a plurality of crushing teeth are arranged on the rotating shaft, the rotating shaft penetrates through the side wall of the discharge end to be connected with the motor, and the motor drives the rotating shaft to rotate.
4. The process for producing needle calcined petroleum coke according to claim 3, wherein the rotating shaft is hollow, a circulating water pipe is arranged in the rotating shaft, a first gear is arranged at one end of the rotating shaft, a second gear is arranged on the shaft of the motor, and the first gear is meshed with the second gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007849.4A CN109485028B (en) | 2019-01-04 | 2019-01-04 | Needle-shaped calcined petroleum coke production process and calciner for production thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007849.4A CN109485028B (en) | 2019-01-04 | 2019-01-04 | Needle-shaped calcined petroleum coke production process and calciner for production thereof |
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| Publication Number | Publication Date |
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| CN109485028A CN109485028A (en) | 2019-03-19 |
| CN109485028B true CN109485028B (en) | 2024-01-16 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112902659A (en) * | 2021-02-03 | 2021-06-04 | 嘉峪关索通预焙阳极有限公司 | Continuous discharging device of pot-type calcining furnace |
| CN115307436B (en) * | 2022-10-10 | 2022-12-13 | 山东天弘化学有限公司 | Petroleum coke calcining device and calcining process |
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| CN103874745A (en) * | 2011-02-23 | 2014-06-18 | 雷恩Cii碳有限责任公司 | Pelletization and calcination of green coke |
| CN104129998A (en) * | 2014-05-29 | 2014-11-05 | 山东宇佳新材料有限公司 | Petroleum coke calcination comprehensive utilization technology |
| CN209618893U (en) * | 2019-01-04 | 2019-11-12 | 镇江东亚碳素焦化有限公司 | Calcining furnace is used in a kind of needle-shaped calcined petroleum coke production |
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2019
- 2019-01-04 CN CN201910007849.4A patent/CN109485028B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0491442A1 (en) * | 1990-12-17 | 1992-06-24 | Ucar Carbon Technology Corporation | Apparatus for treatment of petroleum cokes with a puffing inhibitor in a rotary calciner |
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