CN108728125B - Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof - Google Patents
Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof Download PDFInfo
- Publication number
- CN108728125B CN108728125B CN201810855685.6A CN201810855685A CN108728125B CN 108728125 B CN108728125 B CN 108728125B CN 201810855685 A CN201810855685 A CN 201810855685A CN 108728125 B CN108728125 B CN 108728125B
- Authority
- CN
- China
- Prior art keywords
- combustion
- channel
- gas
- heat exchange
- heating
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 59
- 239000000571 coke Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 238000003763 carbonization Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 87
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 239000002912 waste gas Substances 0.000 abstract description 13
- 206010022000 influenza Diseases 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- 239000011449 brick Substances 0.000 description 17
- 238000005192 partition Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/04—Heating of coke ovens with combustible gases with rich gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
- C10B21/16—Regulating and controlling the combustion by controlling or varying the openings between the heating flues and the regenerator flues
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a heating height-variable gas-rich heating coke oven heating system and an adjusting method thereof, wherein the coke oven heating system comprises a small flue, a controllable heat exchange channel, a combustion-supporting gas channel and a combustion chamber which are sequentially connected from bottom to top; the number of the controllable heat exchange channels corresponding to each combustion chamber is at least 2, each combustion-supporting gas channel consists of a lower inclined channel section and an upper straight channel section, each combustion-supporting gas channel is communicated with the vertical fire channel through at least one gas flow outlet, and at least one gas flow outlet on each combustion-supporting gas channel is arranged at different heights; one end of the small flue is connected with the branch flue through a small flue connecting pipe and an exhaust gas shutter, and an air inlet hole and an air inlet flow regulating device are arranged on the small flue connecting pipe; a plurality of waste gas discs are arranged in the waste gas shutter in one-to-one correspondence with the small flues. The invention can change the height position of combustion in the vertical fire channel at any time according to the requirement, ensures that the heat supply distribution meets the production requirement, and has simple and convenient adjustment mode.
Description
Technical Field
The invention relates to the technical field of combustible gas downward-spraying coke ovens, in particular to a heating system of a gas-rich heating coke oven with a variable heating height and an adjusting method thereof.
Background
Along with the transition of modern production modes, a focusing furnace has higher requirements, such as uniform heating, high production capacity, small resistance of a heating system, convenient adjustment and control and the like. In order to control the combustion temperature in the vertical flame path and improve the high-directional heating uniformity in the vertical flame path, the existing downward-spraying coke oven in China adopts the modes of high and low lamp caps, waste gas circulation, sectional supply of combustion-supporting gas and the like. As shown in fig. 1-3, the coke oven heating system adopting the measures is characterized in that combustion-supporting gas enters a chute 2 from a regenerator 1, and is separated at the chute 2, one part of the combustion-supporting gas directly enters the bottom of the vertical flame path through a bottom combustion-supporting gas outlet 7, and the other part of the combustion-supporting gas enters the vertical flame path 3 through a combustion-supporting gas channel 4 in a partition wall of the vertical flame path from a sectional combustion-supporting gas outlet 5. In the coke oven with the structural form, combustion air is split from one regenerator through the chute and enters the bottom of the corresponding vertical flame path and the middle upper part of the vertical flame path, and the distribution proportion of the combustion air entering the bottom and the middle upper part of the vertical flame path can be adjusted only by adjusting the chute opening adjusting bricks 9 and the sectional outlet adjusting bricks 8, so that the heating quantity of the bottom and the middle upper part of the vertical flame path is adjusted. In the design stage of the furnace body, the distribution of the regulating bricks can only be determined through theoretical calculation, and the distribution proportion of the air flow of the two parts cannot be quantitatively determined in actual production, so that the error is large, the regulating bricks can be adhered to the partition bricks after the coke furnace is put into production, particularly after the coke furnace is operated for a long time, the regulating bricks are deactivated by the high temperature in the vertical flame path, and the regulating bricks cannot be regulated due to the two reasons, namely, the secondary regulation is difficult, and the expected flame path temperature distribution is difficult to realize. Particularly, when the production state of the coke oven is changed, the heating quantity at the bottom and the middle and upper parts of the vertical flame path cannot be adjusted, so that the high-directional heating uniformity of the coke oven is deteriorated, and the coking heat consumption is increased.
In addition, the chute 2 adopts a Y-shaped bifurcation structure, has a complex structure, increases the design difficulty, and in order to ensure tightness, the designed brick type is complex, also increases the brick making difficulty, and meanwhile, the protection and cleaning difficulties in the building process are increased, and the building difficulty is increased, and the circulation structure is complex, so that the system resistance is increased, and the circulation of combustion air is not facilitated.
At present, when the coke oven which is put into production at home and is more than 6 meters is heated by using rich gas, the discharge water of nitrogen oxides is higher than 500mg/m on average 3 The requirements of industry emission standards cannot be met, and the design concept of the reheating type coke oven is to take both lean gas and rich gas heating into consideration, so that when the coke oven is heated by rich gas, the excessive air coefficient at the bottom of the vertical flame path is close to 1.0, the combustion is severe, the combustion temperature is high, a large amount of nitrogen oxides are generated in the high-temperature area, the air inflow of combustion air at the bottom of the vertical flame path cannot be effectively regulated due to the limitation of the oven body structure, the combustion temperature cannot be reduced, the generation of nitrogen oxides cannot be inhibited, and in order to ensure that the emission of the coke oven reaches the standard, the denitration process can only be increased after the oven, so that the construction cost and the production cost are greatly improved.
Disclosure of Invention
The invention provides a heating system of a gas-rich heating coke oven with a changeable heating height and an adjusting method thereof, which can change the height position of combustion in a vertical flame path at any time according to the requirement, realize the change of the heating height of a carbonization chamber, ensure that the heat supply distribution meets the production requirement, effectively reduce the energy consumption and ensure the smooth production; the adjusting mode is simple and convenient, and is beneficial to reducing the emission of nitrogen oxides of the coke oven.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the heating system of the gas-rich heating coke oven with the changeable heating height comprises a small flue, a controllable heat exchange channel, a combustion-supporting gas channel and a combustion chamber which are sequentially connected from bottom to top; the number of the controllable heat exchange channels corresponding to each combustion chamber is at least 2, and each controllable heat exchange channel is communicated with the combustion chamber through a corresponding combustion-supporting gas channel; each combustion-supporting gas channel consists of a lower inclined channel section and an upper straight channel section, the straight channel section extends upwards into the vertical flame channel, each combustion-supporting gas channel is communicated with the vertical flame channel through at least one gas flow outlet, and at least one gas flow outlet on each combustion-supporting gas channel is arranged at different heights; the bottoms of the controllable heat exchange channels are respectively communicated with a small flue, one end of the small flue is connected with a branch flue through a small flue connecting pipe and an exhaust gas shutter, and an air inlet hole and an air inlet flow regulating device are arranged on the small flue connecting pipe; a plurality of waste gas discs are arranged in the waste gas shutter in one-to-one correspondence with each small flue, and the switch valve of each air inlet hole and the waste gas disc in the waste gas shutter can be controlled in an interlocking way with the coke oven heat exchange control system.
The adjusting method of the heating system of the gas-rich heating coke oven with the changeable heating height comprises the following steps:
the combustion-supporting gas enters the corresponding controllable heat exchange channel through the air inlet hole on the small flue connecting pipe, then enters the corresponding combustion-supporting gas channel, and enters the vertical flame path from the air flow outlets with different heights; the gas inlet on the small flue connecting pipe and the exhaust disc in the exhaust shutter are opened or closed along with the heat exchange process of the coke oven by switching the on-off valve at the gas inlet and the interlocking control state of the exhaust disc and the coke oven heat exchange control system;
keeping interlocking control, opening a corresponding controllable heat exchange channel, enabling combustion-supporting gas to pass through the controllable heat exchange channel, and enabling the combustion-supporting gas to enter the vertical flame path from an air flow outlet of the corresponding combustion-supporting gas channel, wherein combustion occurs in the vertical flame path corresponding to the height of the air flow outlet;
the interlocking control is released, the air inlet on the corresponding small flue connecting pipe and the exhaust gas disk in the exhaust gas shutter are kept in a closed state, namely, the corresponding controllable heat exchange channel is closed, combustion-supporting gas does not pass through the controllable heat exchange channel any more, no more combustion-supporting gas enters the vertical flame path at the air flow outlet of the corresponding combustion-supporting gas channel, and no more combustion occurs in the vertical flame path at the height corresponding to the air flow outlet;
according to the high-directional temperature distribution condition of the carbonization chamber, a certain controllable heat exchange channel is closed or opened, so that the height of combustion-supporting gas entering the vertical flame path is changed, namely the high-directional position of combustion in the vertical flame path is changed, and the change of the heating height of the carbonization chamber is realized; through the air inlet flow regulating device, the combustion-supporting gas amounts entering the vertical flame path at different heights are independently regulated, and the change of the high-directional heating uniformity of the vertical flame path can be realized.
Compared with the prior art, the invention has the beneficial effects that:
1) After the coke oven of the coke oven heating system is put into production, along with the change of production process parameters such as coking time, gas components, coal blending components and the like, the height position of combustion in the vertical flame path can be changed at any time according to the high-directional temperature distribution condition of the carbonization chamber, so that the change of the heating height of the carbonization chamber is realized, the heat supply distribution is ensured to meet the production requirement, the energy consumption is reduced, and the smooth production is ensured;
2) The traditional in-furnace adjustment is changed into out-furnace adjustment, the adjustment of the air inflow of combustion air can be realized through a flow adjusting device on a small flue connecting pipe, the closing or opening of a certain controllable heat exchange channel can be realized by switching the flow adjusting device and the interlocking control state of an exhaust gas disk and a coke oven heat exchange control system, the adjustment process can be completed in a coke oven flue corridor, the adjustment mode is simple and convenient, the operation of workers in severe environments is avoided, the labor is saved, and the labor intensity is reduced;
3) According to the gas emission monitoring result, the combustion air quantity at the bottom of the vertical flame path can be adjusted at any time, the excessive air coefficient at the bottom of the vertical flame path is reduced, the generation of nitrogen oxides in a high temperature area is reduced, the emission of nitrogen oxides in a coke oven is further reduced, the environmental protection standard can be realized without a subsequent denitration process, and the construction cost and the production cost are saved;
4) The adjusting bricks arranged in the traditional coke oven are eliminated, and brick shapes are saved;
5) Each combustion-supporting gas channel is a two-section straight-through structure, has no bifurcation structure, simple brick type, convenient design, brick making and masonry, and is favorable for guaranteeing the air tightness of the furnace body structure, and simultaneously, the system resistance is small, and the combustion-supporting air circulation is favorable.
Drawings
Fig. 1 is a schematic structural view of a conventional coke oven heating system.
Fig. 2 is a sectional view A-A in fig. 1.
Fig. 3 is a B-B cross-sectional view in fig. 1.
Fig. 4 is a schematic structural diagram of a heating system for a gas-rich heating coke oven with variable heating height according to the invention.
Fig. 5 is a C-C cross-sectional view of fig. 4.
Fig. 6 is a D-D sectional view of fig. 4.
Fig. 7 is a sectional view of E-E in fig. 4.
Fig. 8 is a cross-sectional view of F-F in fig. 4.
Fig. 9 is a sectional view of G-G in fig. 4.
Fig. 10 is a sectional view of H-H in fig. 6.
In the figure: 1. regenerator 2, chute 3, vertical flue 4, combustion gas passage 5 in the partition, staged combustion gas outlet 6, pipe brick 7, bottom combustion gas outlet 8, staged outlet adjustment brick 9, chute port adjustment brick 10, controllable heat exchange passage 11, small flue 12, intake port 13, intake flow adjustment device 14, small flue connection pipe 15, combustion gas passage 16, gas outlet 17, exhaust gas recirculation hole 18, cross over hole 19, exhaust gas disk interlock control end 20, exhaust gas shutter 21, flue elbow 22, exhaust gas disk 23, exhaust gas shutter partition
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
as shown in fig. 4-10, the heating system for the gas-rich heating coke oven with variable heating height comprises a small flue 11, a controllable heat exchange channel 10, a combustion-supporting gas channel 15 and a combustion chamber which are sequentially connected from bottom to top; the number of the controllable heat exchange channels 10 corresponding to each combustion chamber is at least 2, and each controllable heat exchange channel 10 is communicated with the combustion chamber through a corresponding combustion-supporting gas channel 15; each combustion-supporting gas channel 15 consists of a lower inclined channel section and an upper straight channel section, the straight channel sections extend upwards into the vertical flame channels 3, each combustion-supporting gas channel 15 is communicated with the vertical flame channels 3 through at least one gas flow outlet 16, and at least one gas flow outlet 16 on each combustion-supporting gas channel 15 is arranged at different heights; the bottoms of the controllable heat exchange channels 10 are respectively communicated with a small flue 11, one end of the small flue 11 is connected with a branch flue through a small flue connecting pipe 14 and an exhaust gas shutter 20, and an air inlet hole 12 and an air inlet flow regulating device 13 are arranged on the small flue connecting pipe 14; a plurality of exhaust gas trays 22 are arranged in the exhaust gas shutter 20 in one-to-one correspondence with each small flue 11, and the on-off valve of each air inlet hole 12 and the exhaust gas tray 22 in the exhaust gas shutter 20 can be controlled in an interlocking manner with the coke oven heat exchange control system.
The adjusting method of the heating system of the gas-rich heating coke oven with the changeable heating height comprises the following steps:
combustion-supporting gas enters the corresponding controllable heat exchange channel 10 through the air inlet hole 12 on the small flue connecting pipe 14, then enters the corresponding combustion-supporting gas channel 15, and enters the vertical flame path 3 from the air flow outlets 16 with different heights; the air inlet 12 on the small flue connecting pipe 14 and the exhaust gas disc 22 in the exhaust gas shutter 20 are opened or closed along with the heat exchange process of the coke oven by switching the switch valve at the air inlet 12 and the interlocking control state of the exhaust gas disc 22 and the heat exchange control system of the coke oven;
keeping interlocking control, opening a corresponding controllable heat exchange channel 10, enabling combustion-supporting gas to pass through the controllable heat exchange channel 10 and enter the vertical flame path 3 from an air flow outlet 16 corresponding to a combustion-supporting gas channel 15, and burning in the vertical flame path 3 corresponding to the height of the air flow outlet 16;
the interlocking control is released, the air inlet hole 12 on the corresponding small flue connecting pipe 14 and the waste gas disc 22 in the waste gas shutter 20 are kept in a closed state, namely the corresponding controllable heat exchange channel 10 is closed, combustion-supporting gas does not pass through the controllable heat exchange channel 10 any more, the air flow outlet 16 of the corresponding combustion-supporting gas channel 15 no more has combustion-supporting gas to enter the vertical flame path 3, and no more combustion occurs in the vertical flame path 3 at the height corresponding to the air flow outlet 16;
according to the high-directional temperature distribution condition of the carbonization chamber, a certain controllable heat exchange channel 10 is closed or opened, so that the height of combustion-supporting gas entering the vertical flame path 3 is changed, namely the high-directional position of combustion in the vertical flame path 3 is changed, and the change of the heating height of the carbonization chamber is realized; the amount of combustion-supporting gas entering the vertical flame path 3 at different heights can be independently adjusted through the air inlet flow adjusting device 13, so that the change of the high-directional heating uniformity of the vertical flame path 3 can be realized.
For example, in a downflow coke oven, during one exchange, through the coke oven heat exchange control system, the inlet holes 12 corresponding to the controllable heat exchange channels 10 with ascending air flow are opened, while the exhaust gas trays 22 corresponding to the controllable heat exchange channels 10 with descending air flow are opened, while the exhaust gas trays 22 corresponding to the controllable heat exchange channels 10 with ascending air flow are closed, while the inlet holes 12 corresponding to the controllable heat exchange channels 10 with descending air flow are closed; combustion air enters each corresponding controllable heat exchange channel 10 through the small flue 11 after entering from the air inlet hole 12, enters the vertical flue 3 through the corresponding combustion air channels 15 from the air flow outlets 16 with different heights, is mixed and combusted with rich gas sprayed from the pipe bricks 6, the combusted waste gas enters the adjacent flue through the crossing holes 18 to form descending air flow, part of the descending air flow enters the ascending flue through the waste gas circulation holes 17 at the bottom of the vertical flue 3 to be mixed and combusted with the ascending air flow, the combustion temperature is further reduced, the rest of the descending air flow enters the adjacent controllable heat exchange channels 10 to complete heat exchange, and finally enters the branch flue through the small flue 11, the small flue connecting pipe 14 and the waste gas shutter 20 in sequence.
According to the maturation condition of the coke cake in the carbonization chamber, the corresponding controllable heat exchange channel 10 is opened or closed, the supply of combustion air at the air flow outlet with a certain height is increased or canceled, and the combustion at a certain height position of the vertical flame path 3 can be increased or canceled, so that the change of the heating height of the carbonization chamber is realized.
Analysis showed that at air excess ratios less than 0.8, nox formation during combustion was significantly reduced. When the content of nitrogen oxides in the coke oven chimney waste gas is too high in production, the air inflow at the bottom of the vertical flame path 3 is properly reduced through the air inflow flow regulating device 13, the excessive air coefficient is controlled to be below 0.8 when the bottom of the vertical flame path 3 is burnt, and the emission of the nitrogen oxides in the production process can be effectively reduced.
In the invention, the air inlet flow regulating device 13, the small flue connecting pipe 14 and the exhaust shutter 20 are all conventional devices, the exhaust shutter 20 is divided into a plurality of independent channels by the exhaust shutter partition 23, each independent channel is respectively communicated with the corresponding small flue 11, each independent channel in the exhaust shutter 20 is respectively provided with an exhaust disk 22, and the exhaust disks 22 realize interlocking control with the coke oven heat exchange control system through the exhaust disk interlocking control end 19 and can be connected or disconnected according to the requirement.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. The method for adjusting the heating system of the gas-rich heating coke oven with the variable heating height is characterized in that the heating system of the gas-rich heating coke oven with the variable heating height comprises a small flue, a controllable heat exchange channel, a combustion-supporting gas channel and a combustion chamber which are sequentially connected from bottom to top; the number of the controllable heat exchange channels corresponding to each combustion chamber is at least 2, and each controllable heat exchange channel is communicated with the combustion chamber through a corresponding combustion-supporting gas channel; each combustion-supporting gas channel consists of a lower inclined channel section and an upper straight channel section, the straight channel section extends upwards into the vertical flame channel, each combustion-supporting gas channel is communicated with the vertical flame channel through at least one gas flow outlet, and at least one gas flow outlet on each combustion-supporting gas channel is arranged at different heights; the bottoms of the controllable heat exchange channels are respectively communicated with a small flue, one end of the small flue is connected with a branch flue through a small flue connecting pipe and an exhaust gas shutter, and an air inlet hole and an air inlet flow regulating device are arranged on the small flue connecting pipe; a plurality of exhaust gas discs are arranged in the exhaust gas shutter in one-to-one correspondence with each small flue, and the switch valve of each air inlet hole and the exhaust gas disc in the exhaust gas shutter can be controlled in an interlocking manner with the coke oven heat exchange control system;
the adjusting method of the heating system of the gas-rich heating coke oven with the changeable heating height comprises the following steps:
the combustion-supporting gas enters the corresponding controllable heat exchange channel through the air inlet hole on the small flue connecting pipe, then enters the corresponding combustion-supporting gas channel, and enters the vertical flame path from the air flow outlets with different heights; the gas inlet on the small flue connecting pipe and the exhaust disc in the exhaust shutter are opened or closed along with the heat exchange process of the coke oven by switching the on-off valve at the gas inlet and the interlocking control state of the exhaust disc and the coke oven heat exchange control system;
keeping interlocking control, opening a corresponding controllable heat exchange channel, enabling combustion-supporting gas to pass through the controllable heat exchange channel, and enabling the combustion-supporting gas to enter the vertical flame path from an air flow outlet of the corresponding combustion-supporting gas channel, wherein combustion occurs in the vertical flame path corresponding to the height of the air flow outlet;
the interlocking control is released, the air inlet on the corresponding small flue connecting pipe and the exhaust gas disk in the exhaust gas shutter are kept in a closed state, namely, the corresponding controllable heat exchange channel is closed, combustion-supporting gas does not pass through the controllable heat exchange channel any more, no more combustion-supporting gas enters the vertical flame path at the air flow outlet of the corresponding combustion-supporting gas channel, and no more combustion occurs in the vertical flame path at the height corresponding to the air flow outlet;
according to the high-directional temperature distribution condition of the carbonization chamber, a certain controllable heat exchange channel is closed or opened, so that the height of combustion-supporting gas entering the vertical flame path is changed, namely the high-directional position of combustion in the vertical flame path is changed, and the change of the heating height of the carbonization chamber is realized; through the air inlet flow regulating device, the combustion-supporting gas amounts entering the vertical flame path at different heights are independently regulated, and the change of the high-directional heating uniformity of the vertical flame path can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855685.6A CN108728125B (en) | 2018-07-31 | 2018-07-31 | Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855685.6A CN108728125B (en) | 2018-07-31 | 2018-07-31 | Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108728125A CN108728125A (en) | 2018-11-02 |
| CN108728125B true CN108728125B (en) | 2024-01-26 |
Family
ID=63941942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810855685.6A Active CN108728125B (en) | 2018-07-31 | 2018-07-31 | Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108728125B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115895688B (en) * | 2023-01-06 | 2023-05-05 | 中化二建集团有限公司 | Exchange transmission device capable of switching waste gas air in interlocking manner and exchange transmission method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449768A (en) * | 2014-11-21 | 2015-03-25 | 中冶焦耐工程技术有限公司 | Down-regulated vertical flue combustion regulating method and heating system thereof for coke oven combustor |
| CN105385461A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Sectionalized air feeding structure and method for coke oven heating |
| CN205838912U (en) * | 2016-06-23 | 2016-12-28 | 山西长林能源科技有限公司 | A kind of coke oven combustion chamber segmentation supply heater |
| CN108277022A (en) * | 2018-03-30 | 2018-07-13 | 中冶焦耐(大连)工程技术有限公司 | A kind of top dress makes integrated coking furnace shaft structure and its adjusting method firm by ramming |
| CN208649219U (en) * | 2018-07-31 | 2019-03-26 | 中冶焦耐(大连)工程技术有限公司 | The variable rich gas of heated height heats coke oven heating system |
-
2018
- 2018-07-31 CN CN201810855685.6A patent/CN108728125B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449768A (en) * | 2014-11-21 | 2015-03-25 | 中冶焦耐工程技术有限公司 | Down-regulated vertical flue combustion regulating method and heating system thereof for coke oven combustor |
| CN105385461A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Sectionalized air feeding structure and method for coke oven heating |
| CN205838912U (en) * | 2016-06-23 | 2016-12-28 | 山西长林能源科技有限公司 | A kind of coke oven combustion chamber segmentation supply heater |
| CN108277022A (en) * | 2018-03-30 | 2018-07-13 | 中冶焦耐(大连)工程技术有限公司 | A kind of top dress makes integrated coking furnace shaft structure and its adjusting method firm by ramming |
| CN208649219U (en) * | 2018-07-31 | 2019-03-26 | 中冶焦耐(大连)工程技术有限公司 | The variable rich gas of heated height heats coke oven heating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108728125A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107033926B (en) | Realize the coke oven combustion chamber flue structure of low nitrogen oxide burning | |
| CN108728126B (en) | High-directional heating uniformity at any time adjustable coke oven heating system and adjusting method | |
| CN108277022B (en) | Top-mounted tamping integrated coke oven body structure and adjusting method thereof | |
| CN104449768A (en) | Down-regulated vertical flue combustion regulating method and heating system thereof for coke oven combustor | |
| CN114717014B (en) | High-temperature low-nitrogen combustion coke oven | |
| CN108728127B (en) | Low-nitrogen-emission coke oven heating system adopting rich gas heating and adjusting method thereof | |
| CN107033927B (en) | A kind of coke oven combustion chamber flue structure of segmentally heating | |
| CN107021652B (en) | A kind of double thorax cocurrent heat accumulating type lime shaft kiln method for calcinating | |
| CN108728125B (en) | Heating system of gas-rich heating coke oven with variable heating height and adjusting method thereof | |
| CN2505478Y (en) | Heat recovering coke oven body | |
| CN110068229A (en) | A method of improving recuperative heater efficiency of combustion | |
| CN208649219U (en) | The variable rich gas of heated height heats coke oven heating system | |
| CN108774537B (en) | Low-nitrogen-emission reheating coke oven heating system and adjusting method thereof | |
| CN208649222U (en) | The low-nitrogen discharged coke oven heating system heated using rich gas | |
| CN208649221U (en) | It is a kind of high to heating uniformity adjustable coke oven heating system at any time | |
| CN218262368U (en) | Heating oil type coke oven | |
| CN217230611U (en) | Waste gas distribution device of coke oven | |
| CN103740381B (en) | Transverse continuous heating system of coke oven | |
| CN206887005U (en) | A kind of coke oven combustion chamber flue structure of heat stepwise | |
| CN214571689U (en) | Combined adjustable rich gas heating coke oven | |
| CN204265686U (en) | A kind of heating system of lower regulatable coke oven | |
| CN208649220U (en) | A kind of low-nitrogen discharged complex thermal coke heating system | |
| CN208292918U (en) | A kind of top dress makes integrated coking furnace shaft structure firm by ramming | |
| CN220618811U (en) | Heating-enhanced coke oven heating system | |
| CN211946909U (en) | Novel coke oven structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |