CN1064071C - Anthracite coking oven and coking process - Google Patents
Anthracite coking oven and coking process Download PDFInfo
- Publication number
- CN1064071C CN1064071C CN97101391A CN97101391A CN1064071C CN 1064071 C CN1064071 C CN 1064071C CN 97101391 A CN97101391 A CN 97101391A CN 97101391 A CN97101391 A CN 97101391A CN 1064071 C CN1064071 C CN 1064071C
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- CN
- China
- Prior art keywords
- coal
- coking
- anthracite
- coke
- firing
- 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.)
- Expired - Fee Related
Links
- 238000004939 coking Methods 0.000 title claims abstract description 24
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000003830 anthracite Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003245 coal Substances 0.000 claims abstract description 46
- 239000000571 coke Substances 0.000 claims abstract description 14
- 238000010304 firing Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000011335 coal coke Substances 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 230000001535 kindling effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Solid Fuels And Fuel-Associated Substances (AREA)
- Coke Industry (AREA)
Abstract
The present invention relates to a coal coke furnace for anthracite coal, and a coking method thereof. The mixing ratio of feed coal is: fat coal to anthracite coal is equal to (2 to 5) to (5 to 8). By adopting an ignition way, the temperature of a coal seam quickly rises by a blast blower. By adopting the present invention, the proportion of the anthracite coal in coal coke mixing coal can reach 80%, and the cost of per ton of coke is largely reduced. Thereby, the present invention opens up a path for largely using powdery anthracite coal.
Description
The invention belongs to a kind of pit kiln and coking process thereof, being specifically related to a kind of is the down-firing formula pit kiln and the coking process thereof of main batching with the hard coal.
At present in 75 types and 89 type pit kiln and Chinese patent application CN90104456.3 and CN 95117431.2 disclosed pit kiln and coking process thereof of China's widespread use, all be to be raw material with rich coal and/or coking coal, it all is the mode that adopts side igniting, " coking chemistry basis " (in March, 1976, coking chemistry editorial office) etc. the book of teaching is thought: have only caking coals such as the rich coal of employing or coking coal, just can produce qualified coke product; If adopt hard coal,, be difficult to main batching as coke making and coal blending because its metamorphic grade height can not produce colloid when being heated.Add a small amount of hard coal, also just in order to be used as leaning agent.China's anthracite resource is abundant, stone coal acts as a fuel or raw material, be used widely industrial, and a large amount of powdered anthracites is difficult to sell, and pile up like a mountain on the ore deposit, a large amount of occupation of land, had a strong impact on the ordinary production in colliery, if can in coke making and coal blending, adopt powdered anthracite in a large number,, also can reduce the coal tar cost just for coal production has solved a great problem.Thereby the method for exploitation powdery anthracite cocking will have certain economic benefits, social benefit and environmental benefit.
The objective of the invention is to develop a kind of the anthracite coking oven and the coking process thereof of powdered anthracite as main batching.
The major technique means that adopt have two: one, allocate a certain amount of rich coal in hard coal into, and the one, in general pit kiln, adopt down-firing and make rapid temperature-rising method in the stove, make furnace temperature reach best coking method of temperature as early as possible.
General small-sized pit kiln generally is made of vault, top combustion chamber, sidewall fire hole, sidewall inverted flue, furnace wall, bottom flue and chimney, the invention is characterized in and has set up the bottom priming device, has removed the sidewall fire hole.Described bottom priming device comprises: the air passageways and the gas blower that are provided with on the axis of pit kiln bottom.The ventilation fire grate of alternate setting on this passage.The passage of igniting that above fire grate, vertically is provided with, this passage of igniting links to each other with top combustion chamber, and kindling material can be introduced from the hole that is arranged on the vault, after the igniting hole is sealed.
Coking process of the present invention by be equipped with coal, coaling, tamp, igniting, charing, quenching, cool off, the discharging of the coke constitutes, and it is characterized in that described igniting is a down-firing, described being equipped with in the coal,, hard coal is that 5-8 compares 2-5 with the ratio of rich coal.
The step of down-firing is as follows:
(1) coaling in the stove before, on the fire grate of air passageways, vertically give steel pipe and the inflammable substance of putting one 3 cun or 4 cun;
(2) after coal is filled and tamped, steel pipe is extracted out from the vent on the vault, in the coal seam, formed a pyrophoric passage;
(3) introduce kindling material from the vent of vault, firing combustibles, sealing vent;
(4) blast air by air passageways with gas blower and make that temperature reaches best coking temperature (about 1000 ℃ ± ℃) rapidly in the stove, the heating-up time is in 48 hours.
The step that is equipped with coal is as follows:
(1) with rich coal and powdered anthracite separated pulverizing below 3mm;
(2) equal the mixed even fed to boiler compacting of 5-8 by hard coal than rich coal than 2-5.
The embodiments of the invention accompanying drawings is as follows:
Fig. 1 is a pit kiln bottom schematic view of the present invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
As shown in the figure, 0 is vent, and 1 is vault, 2 is the combustion chamber, and 3 is the sidewall flue entrance, and 4 is the sidewall inverted flue, 5 is the stove interior wall, and 6 is the stove exterior wall, and 7 is the coal seam, 8 for igniting, and 9 is inflammable substance, and 10 is fire grate, 11 is air passageways, and 12 is the bottom flue, and 13 is main flue, the 14th, chimney, 15 is gas blower, 16 is fire door.
The coking step is as follows:
(1) on fire grate 10, gives and put steel pipe;
(2) from fire door 16 coal of getting ready is added compacting rear enclosed fire door 16;
(3) extract out from vent and give the steel pipe of putting, with kindling material through vent 0, ignite and 10 inflammable substance 9 ignited, sealing vent 0 with gas blower 15 air blast, makes the interior temperature of stove rise to about 1000 ± 50 ℃ of coking temperature rapidly;
(4) charing 6-7 days;
(5) add the water quenching, cooling;
(6) opening fire door 16 discharges of the coke.
75 general type pit kiln are set up the down-firing device by above-mentioned structure, closed side wall fire hole, 80 tons of single stove coal capacities, totally 10,800 tons, select powdered anthracite and rich coal for use by the classification of GB regulation, its ratio 7: 3 by above-mentioned coking step ignition operation, reaches 1000 ℃ in 48 hours, with temperature in the blast volume control stove, get 660 tons of coke product through charing in 7 days, the product analysis index is as follows: ash content (Ad) 10.56%, sulfur-bearing (Std) 0.51%, fixed carbon 87.2%, M
4082%, M
108.7%, reach the standard (seeing GB1996-80) of GB first-class metallurgical coke.On-the-spot environment monitoring shows flue gas lingemann blackness＜1, smoke content 280mg/m
3
Embodiment 2
Change the coal proportioning, hard coal: rich coal=6: 4, other coaling 800 tons with embodiment 1, get 640 tons in coke, and the coke quality index is: ash content 11.32%, sulfur-bearing 0.5%, fixed carbon 85.8%, M
4083%, M
107.8%, reach the metallurgical metallurgical coke (seeing GB1996-80) of GB one-level.Environmental protection index is: flue gas lingemann blackness＜1, smoke content 270mg/m
3
Embodiment 3
Hard coal: rich coal=5: 5, coaling 240 tons, get burnt 186 tons, other are with embodiment 1, and the result is as follows: burnt quality index: ash 12-32%, sulfur-bearing 0.51%, fixed carbon 85.0%, M
4085%, M
107.6%, the index that reaches national secondary metallurgical (is seen (GB1996-80).Environmental protection index is with embodiment 1.
Hard coal: rich coal=8: 2, coaling 80 tons, get burnt 70 tons, product index is: ash 9.82%, sulfur-bearing 0.43%, fixed carbon 88.1%, M
4083%, M
108.5%, reach country-level metallurgical coke index (seeing GB1996-80), environment monitoring is with embodiment 1.
In sum, the apparent advantage of the present invention is as follows:
1. can use in a large number powdered abthracite coking, reach as high as 80%.
2. can reduce the burnt cost 20% of ton.
3. only need to transform a little on original type of furnace, small investment is easily applied.
4. environmental benefit is good.
5. can obtain high-quality coke product.
Claims (3)
1. anthracite coking oven, constitute by vault (1), combustion chamber (2), sidewall inverted flue (4), furnace wall, bottom flue (12) and chimney (14), it is characterized in that having set up the down-firing device, described down-firing device is made of vent (0), ignite (8), fire grate (10), air passageways (11), inflammable substance (9) and gas blower (15).
2. coking process that adopts the described pit kiln of claim 1, by be equipped with coal, compacting, igniting, charing, quenching, cool off, the discharging of the coke constitutes, and it is characterized in that the feed coal proportioning that adopts is rich coal: hard coal=2-5: 5-8.
3. coking process as claimed in claim 2 is characterized in that adopting the mode of down-firing to light a fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97101391A CN1064071C (en) | 1997-03-06 | 1997-03-06 | Anthracite coking oven and coking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97101391A CN1064071C (en) | 1997-03-06 | 1997-03-06 | Anthracite coking oven and coking process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1222557A CN1222557A (en) | 1999-07-14 |
| CN1064071C true CN1064071C (en) | 2001-04-04 |
Family
ID=5165705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97101391A Expired - Fee Related CN1064071C (en) | 1997-03-06 | 1997-03-06 | Anthracite coking oven and coking process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064071C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104673330B (en) * | 2013-11-27 | 2017-04-19 | 五冶集团上海有限公司 | 7.63 m coke oven door frame ceramic fiber rope tamping apparatus and applications thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135517A (en) * | 1995-05-11 | 1996-11-13 | 邱云虎 | Anthracite cocking process |
-
1997
- 1997-03-06 CN CN97101391A patent/CN1064071C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135517A (en) * | 1995-05-11 | 1996-11-13 | 邱云虎 | Anthracite cocking process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1222557A (en) | 1999-07-14 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |