CN1005987B - Continuous vertical carbide furnace with checker and single-row of carbide chamber - Google Patents
Continuous vertical carbide furnace with checker and single-row of carbide chamber Download PDFInfo
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- CN1005987B CN1005987B CN87105025.0A CN87105025A CN1005987B CN 1005987 B CN1005987 B CN 1005987B CN 87105025 A CN87105025 A CN 87105025A CN 1005987 B CN1005987 B CN 1005987B
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- regenerator
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- coking chamber
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Abstract
The present invention relates to a continuous vertical carbide furnace provided with a checker chamber and a single row of carbide chambers and is mainly used for preparing mixed coal gas comprising carbonization coal gas and water coal gas. The continuous vertical carbide furnace is suitable for being used in gas source plants of urban domestic coal gas. Simultaneously, the continuous vertical carbide furnace can also be used for refining various kinds of coke. The furnace has the advantages of wide range of applicable coal kinds, homogeneous heating process, high quality of prepared coke, high yield of coal gas and low heat consumption. A heating point supplied from the outside can be flexibly regulated. The structure of a furnace body is reasonable, and air tightness and firmness of the furnace body are greatly reinforced. Therefore, the heat efficiency of the furnace body is enhanced, and the service life of the furnace body is extended. Simultaneously, brick kinds are greatly reduced, brick making operation and furnace building operation are convenient, and cost is reduced.
Description
The single coking chamber continuous vertical of band regenerator of the present invention charring furnace be a kind of with regenerator, have single coking chamber, to produce the mixed gas of forming by dry distillation gas and water-gas, also can refine the system gas coking equipment of various coke simultaneously, be suitable for city domestic gas source of the gas factory and use.
The coal scope is big, thermal losses is few, thermo-efficiency is high, peak regulation is flexible though the H-75 type vertical retort that China Hebi Steel Plant use has, advantages such as simple, accurate are regulated in production.But the coking chamber volume is less, so output is few; The heat type one structure that adopts only is suitable for the heating of firing tunnel in coking furnace or coal gas; Regenerator is that clay brick is built by laying bricks or stones, so the seam that easily regenerator crouched behind the baker draws back; Though dilatation joint is two on the coking chamber partition wall, wherein one is straight-through seam.Therefore body of heater is tight inadequately, during production, and easily blowby in regenerator of coal gas.
The West Germany Kao Baisi upright furnace of introducing according to German magazine " Gas-Wasser-Fach " first phase nineteen fifty-seven and two pieces of articles of nineteen fifty-nine the 20 first phase " " bright lamp " producer gas plant continuous vertical charring furnace " and " the prolonged operation result of the continuous vertical stove of Bonn producer gas plant " that publish, this stove is suitable for that the coal scope is wide, homogeneous heating as can be known, help improving coke quality and gas yield, can flexible supply to add heating gas outward.It is a kind of desirable system gas coking equipment.But this stove and accessory has significant disadvantages: (1) is having a wide and straight-through dilatation joint with the close coking chamber one side partition wall centre of regenerator, during operation, because in the coking chamber is positive pressure operation, regenerator is a negative-pressure operation, has pressure difference, and it is wide and straight-through to add dilatation joint.Resistance is very little, so the raw gas dilatation joint blowby very easily from then on that coking chamber produces has so not only been lost valuable coal gas but also can have been upset normal operation to regenerator, easily body of heater is burnt out, and influences converter life.(2) regenerator position semisilica brick, coking chamber position silica brick, because silica brick expands big, semisilica brick expands little, the regenerator position is lower than the temperature at coking chamber position in addition, so therefore coking chamber position height when baker very easily will draw back near the seam for sleeping in of the regenerator masonry at coking chamber position to expanding significantly greater than the regenerator position, has increased the possibility of coal gas to the regenerator blowby.(3) in regenerator and the bottom flue installing be bar shaped checker brick and double-edged fine-toothed comb brick, though this lath brick brick type is simple, accumulation of heat effect extreme difference, bar shaped double-edged fine-toothed comb brick does not have regulating measure, bar shaped checker brick dust stratification knot charcoal very easily when producing is difficult to cleaning and changes.(4) width of combustion chamber, limit is different with the width of intermediate combustion chamber, has increased brick type kind and the difficulty of laying bricks, and has also increased unnecessary initial cost.
Above-mentioned shortcoming in view of the existence of Kao Baisi vertical retort, the objective of the invention is to design a kind of vertical retort, it can keep Kao Baisi upright furnace inherent advantage, can overcome above-mentioned shortcoming by the improvement of furnace binding again, make body of heater tighter, brickmaking, lay bricks conveniently, thermo-efficiency is higher.
For realizing this purpose, it serves as the main single coking chamber continuous vertical of the band regenerator charring furnace that can also produce various coke simultaneously with the mixed gas of being made up of dry distillation gas and water-gas with production regenerator, single coking chamber that the present invention has designed a kind of, (1) coking chamber is made into respectively to establish the dilatation joint that two bands turn round on the coking chamber both sides partition wall (i.e. the coking chamber one side partition wall and relative opposite side partition wall of close regenerator) near straight-through dilatation joint of regenerator one side partition wall intermediary, and dilatation joint is shifted to the edge of coking chamber.(2) semisilica brick with the regenerator position also makes silica brick (up and down except the bottom flue lining brick) into, and establishes a boss on the partition wall of coking chamber and regenerator, and the seam that crouches is staggered.(3) original bar shaped checker brick and double-edged fine-toothed comb brick are changed into the nine hole thin-walled checker brick and hole, the dispersion pattern garden double-edged fine-toothed comb brick of high accumulation of heat face respectively and establish heat-insulation brick and heat screen on regenerator sealing wall.(4) make the width of combustion chamber, limit consistent with the width of intermediate combustion chamber.
The invention has the advantages that and taked after the above-mentioned measure, make the dilatation joint on the coking chamber partition wall into two by one, reduced the width of dilatation joint, the dilatation joint band turns round, increased the resistance of gas blowby greatly, dilatation joint is shifted to edge, and corner is easy to dust stratification knot charcoal during production, stop up the path of gas blowby, therefore increased the tightness of masonry greatly.Regenerator is used silica brick instead, will be consistent to expanding with the coking chamber height, avoided the coking chamber part on expanding, regenerator seam for sleeping in to be drawn back greatly at height, on the coking chamber partition wall, set up boss in addition, regenerator and coking chamber seam for sleeping in is staggered mutually, significantly reduced the possibility of gas, thereby also improved the tightness and the soundness of masonry, prolonged converter life from the blowby of masonry seam for sleeping in.Adopted nine hole thin-walled checker brick and hole, dispersion pattern garden double-edged fine-toothed comb brick, increased accumulation of heat face, adopted heat-insulation brick and heat screen, reduced heat lost by radiation, thereby improved the thermo-efficiency of body of heater greatly.The combustion chamber, limit has significantly reduced brick type kind with after the width of intermediate combustion chamber is consistent, has made things convenient for brickmaking and has built stove, has reduced cost.
The embodiment and the principle of operation of the single coking chamber continuous vertical of band regenerator charring furnace are illustrated in conjunction with following accompanying drawing.
Fig. 1 .2.3 is the structure iron and the heated air schema of the single coking chamber continuous vertical of band regenerator charring furnace.
Fig. 4 is a dilatation joint synoptic diagram on the coking chamber partition wall.
Fig. 5 is a coking chamber partition wall convex platform synoptic diagram.
Fig. 6 is principle of operation figure.
Shown in Fig. 1 .2.3.4.5.6: (1) is bottom flue down, (2) regenerator under, (3) chute under, (4) horizontal road (also establishing a horizontal road (12)) under for making the gas uniformly distributing, (5) combustion chamber (there are 7 flues (11) each combustion chamber) (6) coking chamber, (7) go up horizontal road, (8) go up chute, (9) go up regenerator, (10) go up bottom flue, (13) dilatation joint on the coking chamber partition wall, (14) coal bin in the middle of, (15) stretch into the formula coal bunker, (16) coke discharge box, (17) store burnt case, (18) boss on the coking chamber partition wall, (19) coal bunker.(M) expression producer gas, (K) expression air.
The furnace binding of the single coking chamber continuous vertical of band regenerator charring furnace is shown in Fig. 1 .2.3, mainly by bottom flue under (1), (2) regenerator under, (3) chute under, (4) horizontal road under, horizontal road is gone up in (5) combustion chamber, (6) coking chamber, (7), and (8) go up chute, (9) last regenerator, (10) go up bottom flue several sections composition.
The single coking chamber continuous vertical of band regenerator charring furnace is to adopt the Recuperative heat type furnace binding, when the low-grade gas source of the gas, can heat with low-grade gas, when not having condition to supply low-grade gas and temporarily unconditionally building producer, the available rich gas that melts down heats, and adds the handiness that heating gas is regulated thereby increased outer confession.Coal a wider range that it is suitable for, except the non-shrinking coking coal of strong bonding, all the other each kind coals (comprising fine coal and lump coal, caking coal and noncaking coal) all can be gone into stove.The design requires into the quality of stove coal: when training of qi is burnt, and Pueraria lobota payment index E-G, crucible exponent of expansion 11/2-6; During the refining metallurgical coke, identical with the coal requirement with general coke oven, it is fixed finally to shrink (X value) weighing apparatus with thickness of colloidal matter layer (Y value) and gelatinous layer.The coal scope adapts to wide, and to the town gas particularly important, especially those bases, coal source are difficult to stable city, selects for use this type of furnace will grasp initiative in the production.This stove is owing to be with regenerator, so it is cold to require the stove low-grade gas to adopt, dustiness must not be greater than 15mg/m
3This stove has the advantage of dry coke quenching again because of regenerator is arranged, so be the minimum type of furnace of thermal losses.When using wet production, its thermal losses is the wet coals of 2428.3 KJ (kilojoule)/kilograms (W=7%), and when producing with semidrying, its thermal losses is the wet coals of 2135.3 KJ (kilojoule)/kilograms (W=7%).
As shown in Figure 6, coking chamber (6) overall height divides three sections, epimere is for giving hot arc, the stage casing is the charing section, hypomere is a cooling section, the employing of coking chamber (6) ingress is stretched into formula coal bunker (15) and is coaling, and stretches into formula coal bunker (15) and leaves annular freeboard all around, compiles the coal gas that produces in the stove and leads to upcast.Stretch into coal that formula coal bunker (15) falls with the higher zone of direct contact oven wall temperature, destructive distillation is very fast to be carried out at the place, furnace wall, and forms a burnt shell, is beneficial to burden direct motion, reduces and smashes the heat number, has alleviated operator's labour intensity.For avoiding raw gas to stitch to regenerator (2 from crouching by coking chamber (6), 9) blowby, with regenerator (2,9) on approaching side coking chamber partition wall and the relative partition wall boss (18) is set, boss (18) length is slightly longer than partition wall, width be the partition wall width half, high 20～30 millimeters, this boss (18) makes regenerator (2,9) and the seam for sleeping in of coking chamber (6) stagger mutually, increased raw gas by coking chamber (6) to regenerator (2,9) stitch the resistance of blowby from crouching, the resistance to air loss and the soundness of body of heater have been strengthened, as shown in Figure 4, and regenerator (2,9) be respectively equipped with the dilatation joint (13) that two bands turn round on close coking chamber (6) one side partition walls and the relative opposite side partition wall, its width is 8～10 millimeters, place's right-angle turning in the middle of dilatation joint (13), corner length is 70～75 millimeters, this dilatation joint is narrower, not straight-through, so increased resistance to air loss, also because when operation, the easy dust stratification knot of edge charcoal, just more increased resistance to air loss, avoided raw gas to stitch to regenerator (2 by upright, 9) blowby in.
As shown in Figure 1, 2, combustion chamber (5) is in the both sides of coking chamber (6), there are 7 flues (11) each combustion chamber, and the two ends up and down of flue (11) correspondingly are provided with horizontal road (7) and following horizontal road (4), and they link to each other with following regenerator (2) with last regenerator (9) respectively.Between the bottom of the top and flue (11) in horizontal road (4),, add a horizontal road (12) again down for making the gas distributed uniform.
Shown in Fig. 2,3, regenerator (2,9) is to adopt wide type, and is the same with coking chamber (6), adopts silica brick to build by laying bricks or stones, makes the height of regenerator (2,9) and coking chamber (6) approaching to swell value.Be difficult for making the seam for sleeping in of regenerator (2,9) to draw back, guaranteed tightness.Bottom flue (1,10) adds the clay brick liner up and down, prevents rapid heat cycle and damages silica brick.Use nine hole thin-walled checker brick in the regenerator (2,9), this brick accumulation of heat face is bigger, is provided with heat-insulation brick and heat screen on the envelope wall (22) of regenerator (2,9), significantly reduces heat and scatters and disappears, thereby improved thermo-efficiency.Establish on the top of bottom flue (1,10) up and down
Embodiment:
With one the 18 single coking chamber continuous vertical of pore area regenerator charring furnace is example, uses the Fushun clean fine coal to be feed coal.
Its principal dimension and technical indicator:
Coking chamber is long: 3268mm
Coking chamber is wide: the top: 300mm
Bottom: 400mm
Coking chamber overall height: 9000mm
Coking chamber width between centers: 1250mm
Flue width between centers: 470mm
Coking chamber wall thickness: 108mm
The volume of coking chamber: 10m
3
The coal amount (W=7%) that every day, every upright carbonization furnace of the present invention was handled: 243t
Every day producing coal tolerance: 9.72 ten thousand Nm
3
Produce complete burnt amount (butt): 160t every day
Produce complete burnt amount (butt) per year: 58,569t
Hole, dispersion pattern garden double-edged fine-toothed comb brick is arranged, and its aperture is calculated through science and is determined, it makes that the distribution of heated air is reasonable more, even.
The heating system of this upright carbonization furnace is to adopt the alternatively up and down type of heating, heating uses coal gas and air with certain pitch time of commutation in turn, from last horizontal road (7) or down horizontal road (4) infeeds flue (11) burning, combustion exhaust just with this timed interval from following horizontal road (4) or go up horizontal road (7) enter regenerator (9) or down regenerator (2) go up bottom flue (1) or following bottom flue (10), the waste gas tube, chimney enters atmosphere, adopt this type of heating, coking chamber (6) metope along height to the temperature difference less, the temperature of high-temperature zone, furnace wall bottom is lower, thereby favourable to prolonging converter life.When adopting rich gas, regulates very simple and convenient, accuracy is higher, when adopting the low-grade gas heating, can reach rational distribution of air flow by regulating the upper and lower front arch of regulating mouth (20,21).
As shown in Figure 6, the principle of operation of the single coking chamber continuous vertical of band regenerator charring furnace is: coking chamber (6) top is provided with coal bunker, and its reserves are about 24 hours coal amount.Opened coal bunker every 1 hour once to middle coal bin (14) coal, when discharging continuously with coke, coal walks downward through stretching into formula coal bunker (15) lentamente continuously from middle coal bin (14), enter the hot arc that gives of coking chamber, directly touch the zone of furnace wall comparatively high temps, coal is located destructive distillation soon and is formed burnt shell in the furnace wall.Thereby reduced coal adhesion problem on the wall.Coal charge slowly and continuously walks downward and enters retort section, the coking process is carried out to inside gradually from the furnace wall, the coal charge quilt is the destructive distillation coke gradually, produce dry distillation gas simultaneously, the red heat coke continues to descend and enters cooling section by the steam cooling from coke discharge box (16) feeding, produce part water-gas simultaneously, cooled coke enters it storage burnt case (17) gradually by the coke discharging transmission mechanism at last, further the water sprinkling is reduced to below 100 ℃ coke temperature again, coke of row every about 2 hours, raw gas that is produced in the coking chamber (6) and water-gas are through upcast, bridge tube enters effuser and is sent to gas purification workshop, coke-oven plant then.
The single coking chamber continuous vertical of band regenerator charring furnace furnace gas flow process is shown in Fig. 2,3: when heating with producer gas, producer gas is gone into exchange shutter from gas main through regulating cock, commutation thallium, send into down gas regenerator (2) (1M, 3M, 5M) then and give heat, air is sent into down air regenerator (2) (2K, 4K, 6K) and is given heat from exchanging air door on the shutter.Process is given the producer gas and the air of heat and is regulated the bottom that mouth (21) is delivered to flue (11) under the warp again in horizontal road (4) down by the uptake ventilator flow direction separately, both meet and burn herein, the adjusted of passing through on waste gas mouth (20) goes into to go up horizontal road (7), flow to regenerator (9) then, waste gas is here passed to most of heat behind the checker brick again through last bottom flue (10), erect riser flows to exchange shutter, after the waste gas flue enters chimney, commutated commutation back gas reversed flow through 20～30 minutes.When heating with firing tunnel in coking furnace, the flow process of air (air is also advanced in the gas regenerator) same as described above.Firing tunnel in coking furnace infeeds the flue bottom by bottom brick gas passage (24), and (meanwhile top brick gas passage (23) advances the carbon removal air and meets through the air that gives heat and burn.After the commutation, firing tunnel in coking furnace by top gas pipe (23) infeed to flue top (meanwhile, bottom brick gas passage (24) advances the carbon removal air) with give air after the heat and meet and burn.
Claims (8)
1, a kind ofly down go up horizontal road, (8) and go up chute, (9) and go up regenerator, (10) and go up the band regenerator that bottom flue constitutes, the continuous vertical charring furnace of single coking chamber in horizontal road, (5) combustion chamber, (6) coking chamber, (7) down in chute, (4) down in regenerator, (3) down in bottom flue, (2), it is characterized in that by (1):
A) respectively establish the dilatation joint (13) that two bands turn round at coking chamber (6) near on regenerator (2, a 9) side partition wall and the relative opposite side partition wall;
B) siliceous brick is adopted at regenerator (2,9) position;
C) respectively establish a boss (18) at coking chamber (6) near on regenerator (2, a 9) side partition wall and the relative opposite side partition wall;
D) regenerator (2,9) adopts nine hole thin-walled checker brick, and bottom flue (1,10) adopts hole, dispersion pattern garden double-edged fine-toothed comb brick, and regenerator sealing wall (22) adopts heat-insulation brick and heat screen;
E) just combustion chamber, limit (5) are consistent with the width of intermediate combustion chamber (5).
2, upright carbonization furnace according to claim 1 is characterized in that dilatation joint (13) is positioned at four edges of coking chamber (6), and its width is 8～10 millimeters, and locates right-angle turning in the middle of dilatation joint (13), and curve length is 70～75 millimeters.
3, upright carbonization furnace according to claim 1 and 2 is characterized in that the boss (18) on coking chamber (6) partition wall is a rectangular parallelepiped, and its height is 20～30 millimeters, and length is slightly longer than the length of partition wall, and width is half of partition wall width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87105025.0A CN1005987B (en) | 1987-06-24 | 1987-06-24 | Continuous vertical carbide furnace with checker and single-row of carbide chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87105025.0A CN1005987B (en) | 1987-06-24 | 1987-06-24 | Continuous vertical carbide furnace with checker and single-row of carbide chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87105025A CN87105025A (en) | 1988-02-10 |
| CN1005987B true CN1005987B (en) | 1989-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87105025.0A Expired CN1005987B (en) | 1987-06-24 | 1987-06-24 | Continuous vertical carbide furnace with checker and single-row of carbide chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005987B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035557C (en) * | 1992-03-13 | 1997-08-06 | 太原工业大学 | Continuous coking iron alloy coke furnace |
| CN101565626B (en) * | 2009-04-30 | 2012-12-26 | 上海得旺力实业有限公司 | Industrial coke carbonization furnace used for metallurgy |
| CN101724416B (en) * | 2009-12-21 | 2012-12-12 | 王建平 | Inverted ladder-shaped vertical internal thermal hollow carbonization furnace |
| CN102191068A (en) * | 2010-03-07 | 2011-09-21 | 黄兆荣 | Process for producing combustible gases, vegetable tar and charcoal by using garbage |
| CN105349156A (en) * | 2015-12-02 | 2016-02-24 | 中冶焦耐工程技术有限公司 | Vertical furnace with sectional heating combustion chamber and heating method of vertical furnace |
| CN105542807A (en) * | 2016-02-04 | 2016-05-04 | 北京神雾环境能源科技集团股份有限公司 | Solid organic matter heat-accumulation pyrolysis activation system and treatment method thereof |
| CN107815516B (en) * | 2017-12-15 | 2022-12-13 | 中冶焦耐(大连)工程技术有限公司 | External heating type coal-based vertical furnace for producing direct reduced iron |
| CN107936999B (en) * | 2017-12-22 | 2024-03-19 | 中冶焦耐(大连)工程技术有限公司 | Bidirectional heating system and heating method of external heating type low-order pulverized coal continuous carbonization furnace |
| CN110922997B (en) * | 2019-12-10 | 2024-07-16 | 北京首钢国际工程技术有限公司 | Dispersed combustion type heat recovery coke oven |
| CN111996015A (en) * | 2020-08-18 | 2020-11-27 | 广东韶钢松山股份有限公司 | Furnace baking pretreatment method suitable for dry quenching furnace and furnace baking method of dry quenching furnace |
-
1987
- 1987-06-24 CN CN87105025.0A patent/CN1005987B/en not_active Expired
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| Publication number | Publication date |
|---|---|
| CN87105025A (en) | 1988-02-10 |
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