CN202379934U - Coking system capable of increasing heat value of coked byproduct gas - Google Patents
Coking system capable of increasing heat value of coked byproduct gas Download PDFInfo
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- CN202379934U CN202379934U CN201220035879XU CN201220035879U CN202379934U CN 202379934 U CN202379934 U CN 202379934U CN 201220035879X U CN201220035879X U CN 201220035879XU CN 201220035879 U CN201220035879 U CN 201220035879U CN 202379934 U CN202379934 U CN 202379934U
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Abstract
The utility model discloses a coking system capable of increasing a heat value of coked byproduct gas. The coking system comprises a coke oven, a filtration purification device, two or more regenerative hot blast stoves and a carbon dioxide pressure reduction buffering device, wherein a gas outlet of the coke oven is connected with a gas inlet pipeline of the filtration purification device; and the upper part of each regenerative hot blast stove is provided with a hot air outlet, a fuel gas inlet and an air inlet. The coking system has the advantages of positive effects on co-production of a semi-coke industry and synthesis ammonia and methanol industries, comprehensive utilization of resources, consumption reduction, emission reduction, energy conservation, environment improvement and the promotion of the structural adjustment of the semi-coke industry, and obvious economic and social benefits.
Description
Technical field:
The utility model relates to a kind of coking system, particularly relates to a kind of coking system that improves coking by-product gas calorific value.
Background technology:
The internal combustion type vertical heater is comparatively advanced coking equipment, and the calorific value of by-product gas can reach 1700Kcal/NM
3And can all reclaim; The blue carbonaceous amount of producing is stable, and fugitive constituent is low, and chemically reactive is good, is suitable for doing chemical industry especially and uses the semicoke raw material.
But because the burning gas of this internal combustion type vertical heater is a self produced gas, combustion-supporting gas is air, therefore, except that containing a large amount of hydrogen, carbon monoxide, also contains 50% the nitrogen of having an appointment in the coal gas of generation.High a nitrogen content like this; Caused unnecessary volume burden for follow-up gas purification operation; Simultaneously also caused the calorific value of coal gas low excessively; Except that the heating that can be used for closely burning, can not directly be used to do the raw material source of the gas of Chemical Manufacture such as methyl alcohol, synthetic ammonia, limited the efficient utilization of by-product gas.
At present, synthetic ammonia-urea-methanol process has a chronic disease that can not solve, and is exactly CO in the gas making production process
2Gas is excessive, and row a large amount of CO more than needed inevitably will loose
2Gas; Synthetic ammonia-urea-methyl alcohol project of the first company of the dimension universe difficult to understand is estimated the CO of the annual row's of loosing 76% (V/V) concentration
2About 7.413 hundred million NM of gas
3CO more than needed
2The release aggravation Greenhouse effect of gas have constituted the pollution to atmospheric environment, do not meet the fundamental principle of low-carbon economy.
The utility model content:
The purpose of the utility model is to provide a kind of coking system that improves coking by-product gas calorific value.
The purpose of the utility model is implemented by following technical scheme; A kind of coking system that improves coking by-product gas calorific value; It comprises pit kiln, filtering and purifying; The gas entry pipe connection of the gas exit of said pit kiln and said filtering and purifying; It also comprises two or more regenerative hot blast stoves, user and a carbonic acid gas pressure-reducing cushioning device, and the top of each said regenerative hot blast stove is equipped with hot-blast outlet, fuel gas inlet and gas inlet, and the bottom of each said regenerative hot blast stove is equipped with flue gas outlet and cold air inlet; The gas inlet place of each said regenerative hot blast stove is provided with gas blower; The cold air inlet of each said regenerative hot blast stove is communicated with said carbonic acid gas pressure-reducing cushioning device respectively; The hot-blast outlet of each said regenerative hot blast stove is communicated with the inlet mouth of said pit kiln through hot air duct respectively; The air outlet of said filtering and purifying is communicated with the user through pipeline.
The fuel gas inlet of each said regenerative hot blast stove is communicated with the air outlet of said filtering and purifying respectively.
The advantage of the utility model is that (1) has reduced the N in the by-product gas significantly
2Gas content, N
2The volume percent content of gas is reduced to below 11.7% by 48%, in addition when the hot blast that feeds pit kiln be pure CO
2During gas, N
2The volume percent content of gas can be reduced to below 1%, has increased substantially the calorific value of by-product gas, and the by-product gas thermal value is by original 1700Kcal/NM
3Brought up to 3500～4000Kcal/NM
3(2) recycled CO
2The volume percent content of gas is the waste gas of 30-100%, makes it be converted into the chemical industry synthetic raw gas CO gas that can further utilize, and turns bane into boon, and turns waste into wealth; (3) because burning changes in the regenerative hot blast stove internal combustion, the very strong hot gas mixture heat-carrying of controllability is adopted in the coke oven heat supply; Improve the stability of coking technique, can further improve the per unit area yield ability of coke oven; (4) improved the pyrolysis temperature of coke oven carbonization section, can reduce the volatile content of finished product semicoke significantly, the semicoke fugitive constituent has improved the quality quality of semicoke by being reduced to less than 3% less than 6%; (5) can reduce CO every year
2Quantity discharged 5.634 hundred million NM
3, amount to 111.484 ten thousand tons approximately, to improving environment, low-carbon economy and Sustainable development crucial meaning is arranged; (6) be the development of blue charcoal (semicoke) industry, opened up a brand-new consumption reduction reduction of discharging, the pattern of low-carbon economy; (7) the utility model to coproduction, comprehensive utilization of resources, consumption reduction reduction of discharging, the save energy of semicoke industry and synthetic ammonia, methyl alcohol industry, improve environment, promote the structural adjustment of semicoke industry to play a positive role, so economic benefit and obvious social benefit.
Description of drawings
Fig. 1 is 1 one kinds of coking system synoptic diagram that improve coking by-product gas calorific value of embodiment.
Fig. 2 is 2 one kinds of coking system synoptic diagram that improve coking by-product gas calorific value of embodiment.
Embodiment:
Embodiment 1: a kind of coking system that improves coking by-product gas calorific value; It comprises pit kiln 1, filtering and purifying 2; The gas exit 3 of pit kiln 1 and the gas entry pipe connection of filtering and purifying 2; It also comprises regenerative hot blast stove 4, user 15 and a carbonic acid gas pressure-reducing cushioning device 5 of two; The top of each regenerative hot blast stove 4 is equipped with hot-blast outlet 11, fuel gas inlet 6 and gas inlet 8, and the bottom of each regenerative hot blast stove 4 is equipped with flue gas outlet 12 and cold air inlet 10; Gas inlet 8 places of each regenerative hot blast stove 4 are provided with gas blower 9; The cold air inlet 10 of each regenerative hot blast stove 4 is communicated with carbonic acid gas pressure-reducing cushioning device 5 respectively; The hot-blast outlet 11 of each regenerative hot blast stove 4 is communicated with the inlet mouth 14 of pit kiln 1 through hot air duct 13 respectively; The air outlet 7 of filtering and purifying 2 is communicated with user 15 through pipeline.
The fuel gas inlet 6 of each regenerative hot blast stove 4 is communicated with the air outlet 7 of filtering and purifying 2 respectively.
Embodiment 2: a kind of coking system that improves coking by-product gas calorific value; It comprises pit kiln 1, filtering and purifying 2; The gas exit 3 of pit kiln 1 and the gas entry pipe connection of filtering and purifying 2; It also comprises regenerative hot blast stove 4, user 15 and a carbonic acid gas pressure-reducing cushioning device 5 of four; The top of each regenerative hot blast stove 4 is equipped with hot-blast outlet 11, fuel gas inlet 6 and gas inlet 8, and the bottom of each regenerative hot blast stove 4 is equipped with flue gas outlet 12 and cold air inlet 10; Gas inlet 8 places of each regenerative hot blast stove 4 are provided with gas blower 9; The cold air inlet 10 of each regenerative hot blast stove 4 is communicated with carbonic acid gas pressure-reducing cushioning device 5 respectively; The hot-blast outlet 11 of each regenerative hot blast stove 4 is communicated with the inlet mouth 14 of pit kiln 1 through hot air duct 13 respectively; The air outlet 7 of filtering and purifying 2 is communicated with user 15 through pipeline.
The fuel gas inlet 6 of each regenerative hot blast stove 4 is communicated with the air outlet 7 of filtering and purifying 2 respectively.
Claims (2)
1. coking system that improves coking by-product gas calorific value; It comprises pit kiln, filtering and purifying; The gas entry pipe connection of the gas exit of said pit kiln and said filtering and purifying; It is characterized in that; It also comprises two or more regenerative hot blast stoves, family and a carbonic acid gas pressure-reducing cushioning device, and the top of each said regenerative hot blast stove is equipped with hot-blast outlet, fuel gas inlet and gas inlet, and the bottom of each said regenerative hot blast stove is equipped with flue gas outlet and cold air inlet; The gas inlet place of each said regenerative hot blast stove is provided with gas blower; The cold air inlet of each said regenerative hot blast stove is communicated with said carbonic acid gas pressure-reducing cushioning device respectively; The hot-blast outlet of each said regenerative hot blast stove is communicated with the inlet mouth of said pit kiln through hot air duct respectively; The air outlet of said filtering and purifying is communicated with the user through pipeline.
2. a kind of coking system that improves coking by-product gas calorific value according to claim 1 is characterized in that the fuel gas inlet of each said regenerative hot blast stove is communicated with the air outlet of said filtering and purifying respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220035879XU CN202379934U (en) | 2012-01-13 | 2012-01-13 | Coking system capable of increasing heat value of coked byproduct gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220035879XU CN202379934U (en) | 2012-01-13 | 2012-01-13 | Coking system capable of increasing heat value of coked byproduct gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202379934U true CN202379934U (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220035879XU Expired - Lifetime CN202379934U (en) | 2012-01-13 | 2012-01-13 | Coking system capable of increasing heat value of coked byproduct gas |
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| Country | Link |
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| CN (1) | CN202379934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559211A (en) * | 2012-01-13 | 2012-07-11 | 府谷县奥维加能焦电化工有限公司 | Coking method capable of improving coking by-product gas calorific value and system therefor |
-
2012
- 2012-01-13 CN CN201220035879XU patent/CN202379934U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559211A (en) * | 2012-01-13 | 2012-07-11 | 府谷县奥维加能焦电化工有限公司 | Coking method capable of improving coking by-product gas calorific value and system therefor |
| CN102559211B (en) * | 2012-01-13 | 2014-02-12 | 府谷县奥维加能焦电化工有限公司 | Coking method capable of improving coking by-product gas calorific value |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
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| CX01 | Expiry of patent term |