CN103614148A - Coke oven coal charging smoke elimination and dust removal equipment - Google Patents
Coke oven coal charging smoke elimination and dust removal equipment Download PDFInfo
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- CN103614148A CN103614148A CN201310447835.7A CN201310447835A CN103614148A CN 103614148 A CN103614148 A CN 103614148A CN 201310447835 A CN201310447835 A CN 201310447835A CN 103614148 A CN103614148 A CN 103614148A
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Abstract
The present invention discloses coke oven coal charging smoke elimination and dust removal equipment, which comprises rising pipes, bridge pipes and a gas collection pipe, wherein the bridge pipe is provided with an ammonia water spraying port, and a device for generating a negative pressure is connected with the gas collection pipe. According to the present invention, the special gas collection pipe for smoke elimination and dust removal at the coal charging stage is arranged, and is connected with the device capable of generating the negative pressure, such that the sufficient, stable and adjustable negative pressure can be formed in the gas collection pipe, and the raw gas produced by the coke oven at the coal charging stage can easily enter the gas collection pipe after purification so as to achieve smoke elimination and dust removal of the coke oven at the coal charging stage; and the equipment has characteristics of low power consumption, stable process, simple operation, easy maintenance, low overall operation cost and good dust removal effect.
Description
Technical field
The present invention relates to coke oven coal-charging smoke abatement device.
Background technology
Coke oven coal-charging smoke prevention and dust control are one of the emphasis produced of coke oven, difficulties, are mainly to process a large amount of raw gas that produce in the process of coalingging.While coalingging to coking chamber, carry secretly into large quantity of air, oxygen forms black smoke with the trickle coal grain burning that enters stove, enter stove coal contacts with scorching hot furnace wall simultaneously, produce a large amount of carbon, sulphur, nitrogen simple substance and compound and with steam and Hydrocarbon Organic, form dark yellow flue gas, described black smoke and dark yellow flue gas are the raw gas of coalingging and producing.
Furnace roof car process of cleaning is the traditional coke oven smoke and dust eliminating method of coalingging, the method is to establish dedusting car at coke oven top, and raw gas is imported to dedusting car, adds combustion air to make raw gas burning to dedusting car simultaneously, after burning, remaining flue gas is delivered to terrestrial station, by cloth bag method, carries out dedusting.The problem that furnace roof car process of cleaning exists is that equipment is heavy, and failure rate is high, and energy consumption is high, contaminate environment, and raw gas burns in vain and causes the wasting of resources.
It is current conventional coke oven coal-charging process of cleaning that high pressure aqua ammonia sprays injection process of cleaning, and this method is to carry out on the basis of coal oven dithio-gas recovery system.Coal oven dithio-gas recovery system is the raw gas recovery system of coke oven production phase, uses it for the smoke prevention and dust control of coalingging, and need to add aqueous ammonia pump of high pressure.During coke oven coal-charging, coal port is opened, coking chamber is in open state, the pressure condition of coking chamber is completely different while producing from coke oven, has increased the coal oven dithio-gas recovery system of aqueous ammonia pump of high pressure, can spray the smoke prevention and dust control that injection method realizes the coke oven coal-charging stage by high pressure aqua ammonia.
Coal oven dithio-gas recovery system comprises on each coking chamber top upcast for raw gas is derived from coking chamber, collects the effuser of each coking chamber flue gas, is connected in bridge tube and cyclic ammonia water flusher between each upcast and effuser, bridge tube is established ammoniacal liquor and is sprayed mouth, and this equipment reclaims for the raw gas of coke oven production phase.The coke oven production phase, coking chamber is in closed state, raw gas enters bridge tube by upcast and by ammonia spray, raw gas temperature reduces, volume reduces, most of tar, dust is washed down and be mixed into next step with ammoniacal liquor processes, and coal gas enters effuser and sends into treatment system, and the raw gas of realizing coke oven production process reclaims.
High pressure aqua ammonia sprays injection dust collection for charging method and set up aqueous ammonia pump of high pressure in raw gas recovery system, when coke oven coal-charging, open aqueous ammonia pump of high pressure, the raw gas producing of coalingging imports bridge tube by upcast, at bridge tube place raw gas, be subject to high pressure aqua ammonia and spray cooling washing, tar and ammoniacal liquor that condensation is got off are mixed into treatment facility, and coal gas and flue dust enter effuser and enter next step treatment process under the injection power effect of high pressure aqua ammonia.Coaling after end, coke oven enters the production phase, and the aqua ammonia pump that aqueous ammonia pump of high pressure is switched to usual pressure carries out the raw gas recovery of coke oven production phase.
It is comparatively advanced that high pressure aqua ammonia sprays injection method, but still have following technological deficiency: 1, power consumption is large.During coke oven coal-charging because coking chamber is in open state, the ammoniacal liquor of enough pressure sprays the injection power forming and coal gas could be imported in effuser, the pressure that coke oven production phase cyclic ammonia water pump offers ammoniacal liquor is 0.3-0.4MPa, and while coalingging, aqueous ammonia pump of high pressure need provide the pressure of 3.0-4.0MPa to ammoniacal liquor, aqueous ammonia pump of high pressure power consumption is large.2, complicated operation.Coke oven is from starting to coaling to the end of coalingging, variation along with coal capacity in coking chamber, the raw gas amount producing and the air capacity of carrying secretly are all among continuous variation, if exceeding safety value, the importing amount of oxygen of effuser and the pressure of effuser will have the accident potential of blast, in order to guarantee safety, need according to the process of coalingging, the raw gas of coalingging to be imported to coaling stove this shop, adjacent heat (batch) number, to carry out smoke prevention and dust control in one or several in heat (batch) number of being separated by, control complexity, if operation makes mistakes and will have influence on production safety.3, processing performance is unstable.Collecting main pressure easily produces fluctuation: effuser has collected the coal gas of all coking chambers, and the coal gas amount that the different production phases of coke oven produce is all different, causes collecting main pressure unstable; Ambient atmosphere is caused by season or weather effect to coaling the raw gas amount that produces not etc. not cause collecting main pressure unstable; The coaling raw gas amount that produces of coal difference does not wait and causes collecting main pressure unstable etc., collecting main pressure de-stabilising effect technology stability.4, dust removing effects is poor.Be subject to the restriction of aqueous ammonia pump of high pressure limiting condition, away from the heat (batch) number of the pump housing, ammonia pressures has trunking loss, and dedusting can not produce a desired effect, and makes coke oven coal-charging dust removing effects integral body poor.
Summary of the invention
The object of the present invention is to provide that a kind of energy consumption is low, the coke oven coal-charging smoke abatement device of good dedusting effect.
Coke oven coal-charging smoke abatement device of the present invention, described equipment comprises the upcast that is located at each coking chamber top and derives for the raw gas producing coalingging, along coke oven longitudinal to the effuser arranging, be connected in bridge tube, ammonia water spraying device between effuser and each upcast, ammoniacal liquor sprays mouth and is located at described bridge tube place, and the device that is provided with generation negative pressure accesses described effuser; Between described bridge tube and effuser, there is valve.
The device of described generation negative pressure is blower fan, and described blower fan accesses described effuser.
Described valve is water-sealed valve.
The original raw gas recovery system of described upcast, bridge tube and ammonia water spraying device and coke oven shares, on each bridge tube, offering interface joins each bridge tube and described effuser, between described each bridge tube and described effuser, be provided with water-sealed valve, described effuser is provided with ammoniacal liquor and sprays mouth.
The original raw gas recovery system of described upcast and coke oven shares, and effuser is located at a side of upcast, establishes bridge pipe and connects upcast and described effuser, between bridge pipe and effuser, establishes water-sealed valve, establishes ammoniacal liquor and spray mouth on described bridge pipe.
Useful technique effect of the present invention: the present invention has separately established the effuser for the stage smoke prevention and dust control of coalingging, and to effuser access blower fan etc., can produce the device of negative pressure, make to form in effuser enough adjustable negative pressure of stablizing, coke oven is in the stage of coalingging, the raw gas forming in coking chamber can easily enter effuser under the condition of effuser negative pressure, realizes the smoke prevention and dust control in coke oven coal-charging stage.The present invention has the following advantages: 1, power consumption is low.No longer need the sprinkling injection of high pressure aqua ammonia that raw gas is imported to effuser, removed the energy consumption of aqueous ammonia pump of high pressure from, power consumption is low.2, simple to operate.The coaling variation of coal capacity in process of the suction reply of adjusting blower fan, does not need the raw gas of coalingging to import in a plurality of heat (batch) numbers, only need be imported applicable some heat (batch) numbers and carry out smoke prevention and dust control and can realize safety in production.3, process stabilizing.The negative pressure degree of the different steps of coalingging effuser realizes by adjusting the suction of blower fan, and collecting main pressure is stable, is no longer subject to the impact of the factors such as the atmospheric environments such as season, weather and coal.4, good dedusting effect.When different heat (batch) numbers are coaling, adjust blower fan suction and collecting main pressure can be controlled to desirable level, reached good dust removing effects.The present invention is simple in structure, easy to maintenance, and overall operation expense is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is left side dotted line frame inner structure enlarged diagram in Fig. 1.
Fig. 3 is one embodiment of the present invention structural representation.
Fig. 4 is Fig. 3 upper right portion structure enlarged diagram.
Fig. 5 is another embodiment of the present invention structural representation.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
In figure, 1-coking chamber, 2-upcast, 3-bridge tube, 4-effuser, 5-ammoniacal liquor sprays mouth, 6-upcast lid, 7-water-sealed valve, 8-blower fan, 9-water-sealed valve, 10-ammoniacal liquor sprays mouth, 11-effuser, 12 water-sealed valves, 13-bridge pipe, 14-water-sealed valve, ammoniacal liquor sprays mouth 15.
As shown in Figure 1, in coking chamber 1 upper right side dotted line frame, structure is the original dust smoke and extraction system of coke oven, and for the recovery of coke oven production phase raw gas, shown in the dotted line frame of coking chamber upper left side, structure is structure of the present invention, for the smoke prevention and dust control in coke oven coal-charging stage.
Fig. 2 is the enlarged diagram of Fig. 1 upper left side dotted line frame inner structure.As shown in Figure 2, coke oven coal-charging smoke abatement device comprises upcast 2, bridge tube 3, effuser 4, and ammoniacal liquor sprays mouth 5, upcast lid 6, water-sealed valve 7, blower fan 8.Upcast 2 is located at each coking chamber 1 top of coke oven, the raw gas producing when deriving coke oven coal-charging, and upcast 2 can utilize the setting of coking chamber dedusting mouth, also opening setting in addition; Effuser 4 longitudinally arranges along coke oven bearing of trend, coal gas and flue gas through purifying when collecting coke oven coal-charging; Each bridge tube 3 is connected in and respectively rises between 2 pipes and effuser 4; Bridge tube is provided with ammoniacal liquor and sprays mouth 5; Between effuser 4 and bridge tube, there is water-sealed valve 7; Upcast 2 tops have upcast lid 6; Blower fan 8 access set tracheaes 4.
Coke oven coal-charging smoke abatement device working process shown in Fig. 2 is: during coke oven coal-charging, first close the original smoke abatement device of coke oven, i.e. equipment shown in coking chamber upper right side dotted line frame shown in Fig. 1.Make water-sealed valve 7 be held open state, open blower fan 8 and give appropriate blower fan suction according to actual condition, make effuser 4 form negative pressure, the raw gas of the high-temperature high concentration that produces of coalingging imports bridge tubes 3 from upcast 2, and be subject to the sprinkling that ammoniacal liquor sprays mouthful 5 ammoniacal liquor, partial ammonia water vaporization, raw gas is significantly lowered the temperature, most of tar, dust is washed down, coal gas volume reduces greatly, under the effect of effuser negative pressure, coal gas imports effuser 4 and enters next processing links, the tar that flue dust gets off with condensation mixes with ammoniacal liquor, can flow away and process along effuser 4, also can separately establish pipeline and import the treatment facilities such as clarifying tank.
Coaling after end, close water-sealed valve 7, stop blower fan 8, ammoniacal liquor sprays mouth 5 and uninterruptedly carries out a small amount of sprinkling, lasting moisturizing makes valve 7 formation stablize fluid-tight, and coking chamber proceeds to the production phase, and the equipment shown in the dotted line frame of coking chamber upper right side in Fig. 1 of opening carries out production phase raw gas recovery.
In order to make structure compacter, the present invention can with the original raw gas recovery system of coke oven common sparing equipment.The present invention, making effuser is to realize the necessary means of goal of the invention in negative pressure state, so separately established by blower fan suction, realize negative pressure effuser 4 for collecting the flue gas in coke oven coal-charging stage.The equipment shared with raw gas recovery system comprises upcast, bridge tube and ammonia water spraying device, does not establish high-pressure pump in ammonia water spraying device.Fig. 3, Fig. 5 are respectively the embodiment that effuser 4 is located at different azimuth.
As shown in Figure 3, Figure 4, upcast 2, bridge tube 3 and ammoniacal liquor spray mouth 5 and share with coal oven dithio-gas recovery system, effuser 4 is located at bridge tube top or side, bridge tube 3 is offered interface and is connected with effuser 4, between bridge tube 3 and effuser 4, be provided with water-sealed valve 9, effuser 4 tops have ammoniacal liquor and spray mouth 10, and blower fan 8 joins with effuser 4.When coal oven dithio-gas recovery system effuser 11 is produced for collecting coke oven, the flue gas of each coking chamber, is slight positive pressure state, between bridge tube 3 and effuser 11, has water-sealed valve 12.During coke oven coal-charging, close water-sealed valve 12, the ammoniacal liquor that continues to spray makes water-sealed valve 12 formation stablize fluid-tight; Open water-sealed valve 9, open blower fan 8 and give suitable suction, the raw gas producing of coalingging imports bridge tube by upcast 2, ammoniacal liquor sprays mouth 5 and sprays ammoniacal liquor to raw gas, raw gas is after ammoniacal liquor cooling washing, coal gas imports effuser 4 under effuser 4 effects of negative pressure state, the coal tar that cyclic ammonia water and condensation are got off enters effuser 11 or separately establishes pipeline and enters next step treatment unit, ammoniacal liquor sprays mouth 10 and further the coal gas entering in effuser 4 is sprayed to cooling washing, and coal gas imports next step treatment process.It is little that the sprinkling amount of ammoniacal liquor sprinkling mouth 10 can be sprayed mouth 5 compared with ammoniacal liquor, and its Main Function is uninterruptedly to spray ammoniacal liquor so that water-sealed valve 9 forms stable fluid-tight when in closed state, and the coal gas in effuser 4 is sprayed and just plays auxiliary cooling cleaning function.Coaling after end, close water-sealed valve 9, close blower fan 8, open water-sealed valve 12, the raw gas that carries out the coke oven production phase reclaims.
Another kind of embodiment as shown in Figure 5, upcast 2 shares with coal oven dithio-gas recovery system, effuser 4 is located at the opposite side of upcast 2, being provided with bridge pipe 13 couples together upcast 2 and effuser 4, bridge pipe 13 is established ammoniacal liquor and is sprayed mouth 15, between effuser 4 and bridge pipe 13, establish water-sealed valve 14, blower fan 8 access set tracheaes 4.During coke oven coal-charging, close water-sealed valve 12, ammoniacal liquor sprays mouthful 5 lasting sprinklings so that water-sealed valve 12 is formed and stablizes fluid-tight, open water-sealed valve 14, open blower fan 8, coke oven coal-charging raw gas imports bridge pipe 13 by upcast 2, at ammoniacal liquor, spray mouthful 15 places and be subject to ammoniacal liquor sprinkling cooling washing, under the effect of the effuser 4 of negative pressure state, coal gas imports effuser 4 and also enters next step handling procedure, and the coal tar of flue dust and condensation is separately established pipeline or entered next step treatment process along effuser 4 together with cyclic ammonia water.
Water-sealed valve 7, water-sealed valve 9 can replace with other valves.
Finally should be noted that; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement, does not all depart from essence and the scope of technical solution of the present invention.
Claims (5)
1. a coke oven coal-charging smoke abatement device, described equipment comprises the upcast that is located at each coking chamber top and derives for the raw gas producing coalingging, along coke oven longitudinal to the effuser arranging, be connected in bridge tube, ammonia water spraying device between effuser and each upcast, ammoniacal liquor sprays mouth and is located at described bridge tube place, it is characterized in that: the device that is provided with generation negative pressure accesses described effuser; Between described bridge tube and effuser, there is valve.
2. coke oven coal-charging smoke abatement device as claimed in claim 1, is characterized in that: the device of described generation negative pressure is blower fan, and described blower fan accesses described effuser.
3. coke oven coal-charging smoke abatement device as claimed in claim 1, is characterized in that: described valve is water-sealed valve.
4. the coke oven coal-charging smoke abatement device as described in claim 1,2 or 3, it is characterized in that: the original raw gas recovery system of described upcast, bridge tube and ammonia water spraying device and coke oven shares, on each bridge tube, offering interface joins each bridge tube and described effuser, between described each bridge tube and described effuser, be provided with water-sealed valve, described effuser is provided with ammoniacal liquor and sprays mouth.
5. the coke oven coal-charging smoke abatement device as described in claim 1,2 or 3, it is characterized in that: the original raw gas recovery system of described upcast and coke oven shares, effuser is located at a side of upcast, if bridge pipe connects upcast and described effuser, between bridge pipe and effuser, establish water-sealed valve, on described bridge pipe, establish ammoniacal liquor and spray mouth.
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| CN201310447835.7A CN103614148A (en) | 2013-09-27 | 2013-09-27 | Coke oven coal charging smoke elimination and dust removal equipment |
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| CN201310447835.7A CN103614148A (en) | 2013-09-27 | 2013-09-27 | Coke oven coal charging smoke elimination and dust removal equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595534A (en) * | 2015-01-19 | 2015-05-06 | 大连海顺重工环保设备有限公司 | Negative pressure water sealed air locking device |
| CN104962298A (en) * | 2015-07-09 | 2015-10-07 | 济南弘科信泰环保技术有限公司 | Method and system for controlling internal suction-method smokeless coal charging process of tamping coke oven |
| CN107227162A (en) * | 2017-07-21 | 2017-10-03 | 中冶焦耐(大连)工程技术有限公司 | Using the sealed pusher side furnace door sealing device of raw coke oven gas |
| CN107325848A (en) * | 2017-07-10 | 2017-11-07 | 北京华泰焦化工程技术有限公司 | A kind of coke-stove gas gas transmission system and coke oven gas purification system |
| CN108514804A (en) * | 2018-03-09 | 2018-09-11 | 庞泰环保工程（江苏）有限公司 | It is a kind of to administer oxygen-containing industrial tail gas negative pressure control oxygen device |
| CN110760321A (en) * | 2019-12-02 | 2020-02-07 | 中冶焦耐(大连)工程技术有限公司 | Coal-charging smoke dust treatment system and process for top-loading coke oven |
| CN110760321B (en) * | 2019-12-02 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | System and process for treating coal-charging smoke dust of top-loading coke oven |
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| GB1387962A (en) * | 1972-08-04 | 1975-03-19 | Carves Simon Ltd | Coke ovens |
| US3897313A (en) * | 1972-02-10 | 1975-07-29 | Sumikin Coke Co Ltd | Duct connecting device |
| CN2761975Y (en) * | 2004-12-13 | 2006-03-01 | 王丰华 | Coke oven smoke prevention and dust control equipment |
| CN101066518A (en) * | 2007-06-08 | 2007-11-07 | 神华乌海煤焦化有限责任公司 | Coke oven coal loading dedust system |
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| US3897313A (en) * | 1972-02-10 | 1975-07-29 | Sumikin Coke Co Ltd | Duct connecting device |
| GB1387962A (en) * | 1972-08-04 | 1975-03-19 | Carves Simon Ltd | Coke ovens |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595534A (en) * | 2015-01-19 | 2015-05-06 | 大连海顺重工环保设备有限公司 | Negative pressure water sealed air locking device |
| CN104962298A (en) * | 2015-07-09 | 2015-10-07 | 济南弘科信泰环保技术有限公司 | Method and system for controlling internal suction-method smokeless coal charging process of tamping coke oven |
| CN104962298B (en) * | 2015-07-09 | 2018-05-08 | 济南弘科信泰环保技术有限公司 | Suction method Anthracite coal process control method and system in a kind of tampering coking oven |
| CN107325848A (en) * | 2017-07-10 | 2017-11-07 | 北京华泰焦化工程技术有限公司 | A kind of coke-stove gas gas transmission system and coke oven gas purification system |
| CN107325848B (en) * | 2017-07-10 | 2023-08-01 | 华泰永创(北京)科技股份有限公司 | Coke oven gas transmission system and coke oven gas purification system |
| CN107227162A (en) * | 2017-07-21 | 2017-10-03 | 中冶焦耐(大连)工程技术有限公司 | Using the sealed pusher side furnace door sealing device of raw coke oven gas |
| CN107227162B (en) * | 2017-07-21 | 2022-09-16 | 中冶焦耐(大连)工程技术有限公司 | Machine side furnace door sealing device adopting raw coke oven gas sealing |
| CN108514804A (en) * | 2018-03-09 | 2018-09-11 | 庞泰环保工程（江苏）有限公司 | It is a kind of to administer oxygen-containing industrial tail gas negative pressure control oxygen device |
| CN110760321A (en) * | 2019-12-02 | 2020-02-07 | 中冶焦耐(大连)工程技术有限公司 | Coal-charging smoke dust treatment system and process for top-loading coke oven |
| CN110760321B (en) * | 2019-12-02 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | System and process for treating coal-charging smoke dust of top-loading coke oven |
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Application publication date: 20140305 |