CN200964394Y - Vertical cleaning heat recovery coking furnace - Google Patents
Vertical cleaning heat recovery coking furnace Download PDFInfo
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- CN200964394Y CN200964394Y CN 200620136067 CN200620136067U CN200964394Y CN 200964394 Y CN200964394 Y CN 200964394Y CN 200620136067 CN200620136067 CN 200620136067 CN 200620136067 U CN200620136067 U CN 200620136067U CN 200964394 Y CN200964394 Y CN 200964394Y
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Abstract
The utility model provides a vertical type cleaning heat recycling coking oven, which is designed with a brace between the two furnace columns, fastening components at both ends of the brace respectively, waste gas suckers and a waste gas collecting bin and a sluice gate at the upper end of one side of the briquette inlet, upper-layer and lower-layer heat dissipating channels at the furnace bottom, and a coking chamber in the furnace body. The coking chamber is communicated with a combustion chamber through the upper smoke opening. The lower end of the combustion chamber is communicated with a mixture chamber through the lower smoke opening. The bottom of the mixture chamber is connected with branch flues through regulating bricks, and the bottom of the mixture is connected with the main flue which is provided with a suction adjusting apparatus. The coking oven maximally meet the rationalized requirements such as environmental protection, land occupation, production capacity, resource comprehensive utilization, and comprehensive investment cost in terms of designing idea, furnace body structure, and technology index.
Description
Technical field
The utility model relates to a kind of pit kiln.
Background technology
2000, domestic first horizontal heat recovery coke oven gone into operation at Shanxi Province's Houma City, had tens of horizontal heat recovery coke ovens to begin to build and come into operation afterwards in succession.Though horizontal heat recovery coke oven has had very big progress at ratio coke oven in the past aspect environment protection and the comprehensive utilization of resources, it does not also reach best state at aspects such as cost of investment, floor space, throughput, coking burn out rates in latter stage.The cleaner production of coking industry is one of emphasis index of domestic and international coking industry development, embodied the coordinated development of economy, resource, environment.In China, it is particularly important that the cleaner production of coking industry seems.Reducing or prevent the generation and the discharging of pollutent from the coking production technological process, is the important technique measure of cleaner production, also is the most effective way.
Summary of the invention
The purpose of this utility model is the shortcoming that overcomes existing horizontal heat reclamation coke furnace, and a kind of vertical cleaning heat reclamation coke furnace is provided, and reduces or prevent the generation and the discharging of pollutent from the coking production technological process, and the cleaner production of coking industry is become a reality.
The technical scheme that realizes the utility model purpose is vertical cleaning heat reclamation coke furnace, comprise left resistance wall, right resistance wall, furnace bottom, fire door, furnace stay, design has a tie rod between two furnace stays, designed fastening assembly respectively at the tie rod two ends, wing furnace post upper end design in briquette import one side has waste gas suction pipe and gas sampling storehouse and gate, set up separately in respect of upper strata heat dissipation channel and lower floor's heat dissipation channel at furnace bottom, one end opening of upper strata heat dissipation channel and lower floor's heat dissipation channel and atmosphere are communicated with, the other end is connected with the upright passage of heat radiation, is connected with the heat radiation chimney on the upright passage of heat radiation.
Design has coking chamber in body of heater, be communicated with the combustion chamber by the upper guide mouth, in the upper end of combustion chamber one air intlet is arranged, be coated with air regulating door on the air intlet, the lower end of combustion chamber is communicated with mixing section by the lower guide mouth, the mixing section bottom is connected with branch flue by regulating brick, and branch flue is connected with flue collector again, and the suction setting device is installed on flue collector.
The coke oven body part adopts the refractory materials of unlike materials such as silica brick, clay brick, high alumina brick, insulating brick to build by laying bricks or stones according to the difference at position.
Fire door partly adopts Heat resistant casting, reduces thermal distortion as far as possible.
Furnace retaining partly adopts steel construction weldment, spring and nut to be connected, and protects body of heater, the thermal distortion of bearing body of heater on the other hand on the one hand.
The applicant was to after various coke ovens were analyzed, summed up and studied in the past; designed vertical recovery of heat coke-fired furnace; through using and promoting in domestic ten Duo Jia coke-oven plants of China such as peak, Pingyao, Shanxi rock coking company limiteds; and constantly carry out texture improvement and rationalization, stdn; thereby design successfully present " vertical cleaning heat reclamation coke furnace ", satisfied the rationalization requirement of aspects such as environment protection, floor space, throughput, comprehensive utilization of resources, comprehensive method of investment cost from aspects such as design concept, furnace binding, technic indexs to greatest extent.This kind pit kiln not only can be produced qualified high-quality coke, and can be equipped with power plant after its coke making process, and high-temp waste gas is transported to power plant carries out the thermal resource comprehensive utilization, be electric energy with thermal power transfer.
The coking chamber height series of " vertical cleaning heat reclamation coke furnace " has at present: 3300mm, 3600mm, 4300mm, 4500mm etc.; The coking chamber width series has: 400mm, 450mm, 500mm, 560mm etc.
Below be the technical specification and the performance perameter of vertical cleaning heat reclamation coke furnace
To produce 500000 tons " vertical cleaning heat reclamation coke furnaces " per year is example:
| Performance index | Numerical value | Performance index | Numerical value |
| The coking chamber overall height | 4300mm | The coking chamber wall is every thick | 100mm |
| The coking chamber total length | 12670mm | Furnace roof is thick | 1182mm |
| Coking chamber is on average wide | 560mm | Coking chamber is coaling highly | 3600-3800mm |
| Coking chamber width between centers | 1180mm | The coking chamber core temperature | 1000±50℃ |
| Coal capacity of coking chamber | ~ 20.70 tons | Every hole amount of the discharging of the coke | 16 tons |
| Go into oven coal cake density | 1.0~1.1t/m 3 | Exhausted air quantity | 347569Nm 3/h |
| The coking turnover time | 32--36h | Spent air temperture | 950--1050℃ |
| 500,000 tons of hole counts | 4 * 35 holes | Supporting power plant scale | 2×12MW |
| The coke quality index of producing | M25 〉=90%; M10≤7%; Reactive 23-25; Post-reaction strength 65-68; Ash≤11.5% | ||
Mechanical means situation with the pit kiln coupling:
| Sequence number | Title | Coke production scale and equipment configuration quantity | |
| 250,000 tons/year | 500,000 tons/year | ||
| 1 | Coal pushing and charging car | 1 | 2 |
| 2 | Tamping car | 1 | 2 |
| 3 | Block burnt dedusting car | 1 | 2 |
| 4 | Quenching car | 1 | 2 |
| The gross weight of equipment amount | 580 tons | 1160 tons | |
The performance characteristics of vertical cleaning heat reclamation coke furnace
1, environment protection aspect:
(1), coke oven makes side coal firm by ramming, the pit kiln negative-pressure operation, significantly reduce coaling, the uncontrollable discharge of flue gas in the coke-pushing process, make coaling, coking, the whole process of the discharging of the coke flue dust do not have and leaks, the raw gas that is produced all burning becomes heat energy.This heat energy passes through the briquette of the heat passage indirect heating coking chamber of refractory brick in the combustion chamber, make coal become coke, the while waste heat is transported to power plant's heating briquette by flue collector makes coal become coke, and the boiler water of electric power plant of waste heat heating simultaneously makes water become hot steam drive turbine driven set and generates electricity.Waste gas SO in the flue gas behind desulfurization and dedusting that power plant discharges
2≤ 100mg/Nm
3, dust≤50mg/Nm
3, realize cleaner production, reach environmental requirement.
(2), do not fail coke-oven gas outward, change technological processs such as product recovery and gas purification,, fundamentally solved the problem of coke-oven plant's waste water control difficulty so contain the sewage generation of harmful Chemical Composition.
(3), in process of coking, toxic and harmfuls such as the tar of generation, benzene, naphthalene, 3-4 benzene Bing pyrene at high temperature all burn, and have significantly reduced in the process of coking toxic and harmful to the harm of environment.
2, comprehensive utilization of resources aspect:
(1), cogeneration: the coking waste gas residual heat all is used for generating, has realized the comprehensive utilization of resource.To produce 500000 tons of coke-oven plants per year is example, can be equipped with 2 * 12MW recovery of heat generating set.
(2), coal blending kind: according to the characteristics and the local coal source situation of heat recovery coke oven coking, can suitably allocate weak caking coal in the coking coal, enlarge the scope of selecting for use of coking coal resource, reduce the coking cost.
(3), water consumption: production process does not consume resources such as steam, water at low temperature, only 0.45 ton of burnt water consumption per ton.
(4), electric consumption: about 15 degree of burnt power consumption per ton.
3, throughput and coke quality aspect:
(1), coking chamber and combustion chamber separate fully, just by the heat passage briquette that heats of refractory brick, avoids occurring the drawback of the ripe easy ashing in latter stage of coke.The heat recovery coke oven coking burn out rate in latter stage of other form is about 5%, and concerning the coke-oven plant, this is a very big loss; And the coke coking burn out rate in latter stage of this pit kiln is almost nil.
(2), wide coking chamber coking, the lumpiness of coke is big, intensity is high, Heat stability is good.
(3), coking chamber and combustion chamber separate the 100mm of being separated by, the coal gas that coal is produced fully in the process of charing, in the combustion chambers burn process, adjacent coking chamber heat energy can utilize mutually, thereby has shortened coking time, increase the homogeneity of coking, output can improve greatly.
4, cost of investment and construction period aspect:
(1), cost of investment is low: compare with other type of furnace, this type of furnace is owing to adopted the vertical chamber structure, improve at aspects such as furnace binding such as refractory brick, furnace retaining ironware, vehicle, flues, thereby coke oven part material therefor is reduced, the investment of oven body part reduces greatly.Compare with horizontal heat recovery coke oven, under the situation of equal turnout, the construction investment of coke oven can save 20% to 30%.
(2), the construction period is short, generally speaking, the construction period is 10 months.
5, technology application facet again:
" vertical cleaning heat reclamation coke furnace ", its profile is similar to modernization product recovery coke oven, mechanical means that is equipped with and common part and modernization are produced and are reclaimed coke oven general (part), reclaim coke oven for existing change product seriously polluted or that be about to close stopping production, can carry out corresponding technical according to the technology of " vertical cleaning heat reclamation coke furnace ", will be about to the depleted coke oven with a spot of fund and change the clean environment firendly Formed Coke Furnace that to utilize again into.
6, use operating aspect:
(1), makes the employing mechanical packing firm by ramming.
(2), the production process reference mark is few.
(3), technological operation convenience, grasp easily.
7, coke oven life-span aspect:
(1), two layer of air heat dissipation channels are arranged at foundation top, 100--150 ℃ of foundation top temperature can guarantee that ground can not damage because temperature is too high.
(2), the refractory materials that uses of coke oven is silica brick, high alumina brick and clay brick, life is more than 20 years.
Description of drawings
Fig. 1 is the vertical facade structures synoptic diagram of the utility model.
Fig. 2 is the horizontal facade structures synoptic diagram of the utility model.
Embodiment
As Fig. 1, shown in Figure 2, the utility model comprises left resistance wall 1, right resistance wall 5, furnace bottom 13, fire door 23, furnace stay 16, for prevent that body of heater is out of shape under the condition of high temperature, design has a tie rod 19 between two furnace stays 16, designed fastening assembly 20 respectively at tie rod 19 two ends, in the design of furnace stay 16 upper ends of briquette import one side waste gas suction pipe 21 and gas sampling storehouse and gate 22 are arranged, in furnace bottom 13 partial design upper strata heat dissipation channel 26 and lower floor's heat dissipation channel 12 are arranged, one end opening of upper strata heat dissipation channel 26 and lower floor's heat dissipation channel 12 and atmosphere are communicated with, the other end is connected with the upright passage 14 of heat radiation, be connected with heat radiation chimney 2 on the upright passage 14 of heat radiation, cool ambient air is continually from last, following heat dissipation channel enters, emerge from heat radiation chimney 2 through the upright passage 14 of heat radiation, main purpose also is for to the body of heater cooling, does not terminate in body of heater and caves in because of high temperature.
Design has coking chamber 17 in body of heater, be communicated with combustion chamber 8 by upper guide mouth 7, there is an air intlet 68 upper end in the combustion chamber, design has thermometer hole (not marking among the figure) at the air intlet place, be coated with air regulating door 3 on the air intlet 6, the lower end of combustion chamber 8 is communicated with mixing section 9 by lower guide mouth 24, and mixing section 9 bottoms are connected with branch flue 11 by regulating brick 10, branch flue 11 is connected with flue collector 25 again, and 25 install suction setting device 15 on flue collector.
As shown in Figure 1 and Figure 2, send in the coal bin of coal charger by the duplex material feeder, make into coal firm by ramming briquette, send in the coking chamber 17 from pusher side by production plan by coal charger through plug ramming machine by being equipped with the mixed coal of sending here between coal car.Briquette high temperature carbonization through a coking cycle in coking chamber is refined coke.The raw gas that produces in Coking Process imports combustion chamber 8 through upper guide mouth 7, air 6 mixed firings that are inhaled into the top are after lower guide mouth 24 enters mixing section 9, enter coke oven bottom branch flue 11 by regulating brick 10, deliver to the heat recovery system generating by flue collector 25 then.For guaranteeing the suction of coking chamber 17,25 install suction setting device 15 on flue collector.Main flue outlet spent air temperture is 950-1050 ℃.Briquette is in entering the coking chamber process, and a small amount of raw gas that produces at stove gate enters in gas sampling storehouse and the gate 22, imports main flue through furnace roof waste gas suction pipe 21 then, all burns under main flue high temperature and negative pressure.After the coking chamber coke maturation, release coke, through blocking burnt dedusting car, quenching car and its coke of the laggard Xingqi of quenching process transportation program with pushing machine.
Claims (1)
1, vertical cleaning heat reclamation coke furnace, comprise left resistance wall (1), right resistance wall (5), furnace bottom (13), fire door (23), furnace stay (16), it is characterized in that design has a tie rod (19) between two furnace stays (16), designed fastening assembly (20) respectively at tie rod (19) two ends, furnace stay (16) upper end design in briquette import one side has waste gas suction pipe (21) and gas sampling storehouse and gate (22), in furnace bottom (13) partial design upper strata heat dissipation channel (26) and lower floor's heat dissipation channel (12) are arranged, one end opening of upper strata heat dissipation channel (26) and lower floor's heat dissipation channel (12) and atmosphere are communicated with, the other end is connected with the upright passage (14) of heat radiation, is connected with heat radiation chimney (2) on the upright passage (14) of heat radiation; Design has coking chamber (17) in body of heater, be communicated with combustion chamber (8) by upper guide mouth (7), there is an air intlet (6) upper end of (8) in the combustion chamber, be coated with air regulating door (3) on the air intlet (6), the lower end of combustion chamber (8) is communicated with mixing section (9) by lower guide mouth (24), mixing section (9) bottom is connected with branch flue (11) by regulating brick (10), and branch flue (11) is connected with flue collector (25) again, and (25) install suction setting device (15) on flue collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136067 CN200964394Y (en) | 2006-11-02 | 2006-11-02 | Vertical cleaning heat recovery coking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136067 CN200964394Y (en) | 2006-11-02 | 2006-11-02 | Vertical cleaning heat recovery coking furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200964394Y true CN200964394Y (en) | 2007-10-24 |
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ID=38868406
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620136067 Expired - Lifetime CN200964394Y (en) | 2006-11-02 | 2006-11-02 | Vertical cleaning heat recovery coking furnace |
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| CN (1) | CN200964394Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081258A1 (en) * | 2009-01-13 | 2010-07-22 | He Jianhu | Clean vertical type heat-recovery coking oven |
| CN102031125A (en) * | 2010-12-29 | 2011-04-27 | 中冶焦耐(大连)工程技术有限公司 | Coking method and coke oven for efficiently recycling heat of exhaust gas |
| WO2013040891A1 (en) * | 2011-09-19 | 2013-03-28 | 山西平遥峰岩煤焦集团有限公司 | A method for leading out vertical heat recovery coke oven crude gas |
-
2006
- 2006-11-02 CN CN 200620136067 patent/CN200964394Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081258A1 (en) * | 2009-01-13 | 2010-07-22 | He Jianhu | Clean vertical type heat-recovery coking oven |
| CN102031125A (en) * | 2010-12-29 | 2011-04-27 | 中冶焦耐(大连)工程技术有限公司 | Coking method and coke oven for efficiently recycling heat of exhaust gas |
| CN102031125B (en) * | 2010-12-29 | 2013-04-10 | 中冶焦耐(大连)工程技术有限公司 | Coking method and coke oven for efficiently recycling heat of exhaust gas |
| WO2013040891A1 (en) * | 2011-09-19 | 2013-03-28 | 山西平遥峰岩煤焦集团有限公司 | A method for leading out vertical heat recovery coke oven crude gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG PROVINCE METALLURGICAL ENGINEERING CO., L Free format text: FORMER OWNER: HE JIANHONG Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710061 XI'AN, SHAANXI PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121009 Address after: 250101 Shandong province Ji'nan High-tech Development Zone, Road No. 1969 Patentee after: Laiwu Tianming Metallurgical Equipment Co., Ltd. Address before: 710061, building 17, building 3, universal garden, electronic two road, Xi'an, Shaanxi Patentee before: He Jianhong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071024 |
|
| EXPY | Termination of patent right or utility model |