CN101760212A - Cooling structure for dry method coke quenching - Google Patents
Cooling structure for dry method coke quenching Download PDFInfo
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- CN101760212A CN101760212A CN200910252430A CN200910252430A CN101760212A CN 101760212 A CN101760212 A CN 101760212A CN 200910252430 A CN200910252430 A CN 200910252430A CN 200910252430 A CN200910252430 A CN 200910252430A CN 101760212 A CN101760212 A CN 101760212A
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- destructive distillation
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Abstract
The invention relates to a cooling structure for dry method coke quenching, which comprises a body, a gas distribution pipe, a gas collection umbrella and a baiting device, wherein the gas distribution pipe can guide cold smoke gas generated by drying treatment on coal briquettes into the body, and is arranged in the body, the gas collection umbrella can discharge the smoke gas through the heat exchange out of the body, and is arranged under the gas distribution pipe, and the baiting device can be used for carrying pyrolysate products in the body so that the pyrolysate products can be discharged from the cooling structure at the preset speed. The cooling structure for dry method coke quenching of the invention belongs to a semi-coking cooling structure using gas as a carrier, which can realize the dry method coke quenching. The structure realizes the dry method coke quenching by a specific structural method, saves the water sources, and simultaneously reduces the environment pollution.
Description
Technical field
The present invention relates to a kind of dry distillation of coal device, relate in particular to a kind of cooling structure of dry quenching(of coke).
Background technology
Dry quenching(of coke) is called for short " dry coke quenching ", be for the coke wet quenching that water extinguishes red-hot coke, thereby its ultimate principle is to adopt cold rare gas element to carry out the heat exchange cooling coke dried putting out in the stove with red-hot coke, the rare gas element that absorbs red burnt heat is passed to dry coke quenching residual heat boiler to produce steam with heat, can or satisfy manufacturing technique requirent by steam turbine power generation, the rare gas element that is cooled blasts the dried stove that puts out in order to cool off red Jiao by recirculation blower again.This technology has changed the residual heat resources waste in traditional wet quenching technology, and contains the phenomenon of the fog of dust and poisonous, objectionable impurities to the atmospheric environment severe contamination, is the important symbol of coking industry technical equipment.
The dry coke quenching engineering is compared mainly with the conventional wet quenching and shown: 1, reclaim come out of the stove red Jiao's sensible heat of red burnt sensible heat and account for the 35-40% of coke oven energy consumption, this part energy is equivalent to 5% of coking energy.If with this part energy recovery and make full use of, can reduce burnt sensible heat greatly.2, reduce environmental pollution (1) coking workshop and adopt wet quenching, whenever put out one ton of red coke and 0.5 ton of steam that contains a large amount of phenol, prussiate, sulfide and dust will be thrown to sky, seriously polluted atmosphere and environment on every side.This part pollution accounts for 1/3rd of coking environmental pollution, and is difficult to find reasonable improvement method.Dry coke quenching then is to utilize rare gas element, in closed system red Jiao is extinguished, and is equipped with good dust removal installation, and is free from environmental pollution basically.(2) because dry coke quenching can produce steam (5-6 ton steam needs 1 ton of steam coal), and can be used for generating, the boiler that can avoid producing equal amts steam has especially reduced SO2, CO2 to atmospheric discharging to atmospheric pollution.The scale present to coking company adopts dry coke quenching, can reduce ten thousand tons of steam coal burnings of 8-10 every year to atmospheric pollution.(c) improve the coke quality dry coke quenching and compare with coke wet quenching, under blending ratio the same terms, coke M40 improves 3-8 percentage point, and M10 improves the 0.3-0.8 percentage point.
Dry quenching(of coke) in the existing dry distillation of coal technology is to utilize rare gas element to carry out the quenching cooling, is emptying after the quenching, though can not cause environmental pollution, cost is higher, is unsuitable for scale operation dry distillation of coal product.
Summary of the invention
For this reason, technical problem to be solved by this invention is that existing dry distillation of coal dry quenching(of coke) utilizes rare gas element to carry out quenching cooling, cost height, is unsuitable for the technical problem of scale operation, proposes a kind ofly to utilize cold flue gas to carry out the quenching cooling, cooperates the auxiliary refrigerative of waterworks, is suitable for the cold but structure of dry quenching(of coke).
For solving the problems of the technologies described above, the cooling structure of a kind of dry quenching(of coke) of the present invention comprises:
Body;
Gas distribution pipe, it is arranged on this body interior, and the cold flue gas conducting that coal cinder can be carried out the drying treatment generation is to described body;
The gas collection umbrella, it is arranged at the top of described gas distribution pipe, the flue gas through heat exchange can be discharged described body;
Blanking device, it can be used to accept the destructive distillation product in the described body and makes this destructive distillation product discharge described cooling structure according to pre-set velocity.
In technique scheme, also comprise waterworks, its be arranged at described blanking device the below, can be to the cooling of spraying water of the destructive distillation product of described body bottom.
In technique scheme, the part that is positioned at below the described blanking device of described body is up big and down small awl bucket shape, with easy-unloading.
In technique scheme, described blanking device is a pushing machine.
In technique scheme, a plurality of metal tubes that described gas collection umbrella and described gas distribution pipe are and are horizontally disposed with, the below is open.
In technique scheme, the cross section of described metal tube is a trilateral.
In technique scheme, the position that described metal tube in the vertical direction height is identical is provided with.
Technique scheme of the present invention has the following advantages compared to existing technology:
At first, the cooling structure of dry quenching(of coke) of the present invention belongs to that a kind of what realize dry quenching(of coke) is the semicoke cooling structure of carrier with gas, and this structure has realized dry quenching(of coke) by the ad hoc structure mode, has saved water resources, has reduced environmental pollution simultaneously.
In addition, the cooling structure of dry quenching(of coke) of the present invention, because whole cooling section will keep sealing, prevent that air admission and semicoke from reacting, the pushing machine that the cooling section bottom is provided with, the pushing machine top keeps the adequate thickness semicoke to play the effect of material envelope, the bottom conveniently is designed to bore the bucket shape shape for discharging, simultaneously cause the semicoke spontaneous combustion in order to prevent that cooling performance is bad, on the cavity wall below the pushing machine, be provided with waterworks, fall through having become waterfall shape behind the pushing machine at this part semicoke, this moment, water spray can play good heat exchange effect, prevented that by the control injection flow rate semicoke water content from exceeding standard simultaneously.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is a kind of main TV structure synoptic diagram of embodiment of the cooling structure of dry quenching(of coke) of the present invention;
Fig. 2 is the side-looking structural representation of a kind of embodiment of cooling structure shown in Figure 1;
Reference numeral is expressed as: 1-gas collection umbrella, 2-gas distribution pipe, 3-pushing machine, 4-waterworks, 5-body.
Embodiment
Fig. 1 and 2 has shown a kind of concrete embodiment of the cooling structure of dry quenching(of coke) of the present invention, and a kind of cooling structure of dry quenching(of coke) comprises: body 5; A gas distribution pipe 2, its coal cinder can be carried out cold flue gas conducting that drying treatment produces to described body 5, be arranged on this body 5 inside; A gas collection umbrella 1, it can be discharged described body 5 with the flue gas through heat exchange, be arranged at the below of described gas distribution pipe 2; Blanking device, it can be used to accept the destructive distillation product in the described body and makes this destructive distillation product flow out described cooling structure according to pre-set velocity; Waterworks 4, its be arranged at described blanking device the below, can be to the cooling of spraying water of the destructive distillation product of described body 5 bottoms.The part that is positioned at below the described blanking device of described body 5 is up big and down small awl bucket shape, with easy-unloading.Described blanking device is a pushing machine 3, and it can discharge the body of heater outside with the destructive distillation product of described body 5 bottoms.The cooling structure of dry quenching(of coke) of the present invention, because whole cooling section will keep sealing, prevent that air admission and semicoke from reacting, prevent that simultaneously carrier gas is from the discharge of cooling section bottom, the pushing machine top that the cooling section bottom is provided with keeps its material envelope effect of adequate thickness semicoke, the bottom conveniently is designed to bore the bucket shape shape for discharging, simultaneously cause the semicoke spontaneous combustion in order to prevent that cooling performance is bad, on the cavity wall below the pushing machine, be provided with waterworks, fall through having become waterfall shape behind the pushing machine at this part semicoke, this moment, water spray can play good heat exchange effect, prevented that by the control injection flow rate semicoke water content from exceeding standard simultaneously.
Used the external combustion internally heated coal carbonization furnace of the cooling structure of dry quenching(of coke) of the present invention, it is followed successively by from top to bottom: preheating section, dryer section, retort section and cooling section.Described preheating section is arranged on described dryer section top, is communicated with described dryer section, is used for feed coal is carried out thermal pretreatment; Described dryer section is used for feed coal is carried out drying treatment, and obtains cold flue gas simultaneously; Described retort section is used for that the feed coal through drying treatment is carried out destructive distillation and handles, and feed coal is handled the back through destructive distillation and formed semicoke; Described cooling section is to come the semicoke of output is wherein carried out cooling process by feeding described cold flue gas, and obtains hot flue gas simultaneously.Described coal carbonization furnace also is provided with described cold flue gas conducting that described dryer section the is produced cold flue gas pipeline to described cooling section, and the described hot flue gas conducting that described cooling section is produced is to the exhaust pipe of described preheating section.The recirculation blower that is connected with on the described cold flue gas pipeline, its described cold flue gas that can make the generation in the described dryer section via the conducting of described cold flue gas pipeline to described cooling section, afterwards again via described exhaust pipe conducting to described preheating section.Described cold flue gas pipeline is connected with the emptying passage with the unwanted unnecessary described cold flue gas emptying of described cooling section.In the raw gas exit of described retort section also is connected with described retort section, feed coal is carried out producing when destructive distillation is handled the after-treatment system that raw gas removes coal tar.Between the exhanst gas outlet of described after-treatment system and described dryer section, also be connected with the drying and burning device, between the exhanst gas outlet of described cold flue gas pipeline and described drying and burning device, also be connected drying duct.Described drying and burning device burns the part coal gas that produces in the described after-treatment system, be used for the dry flue gas of the drying treatment of described dryer section with generation, and described drying duct can mix the part cold flue gas that produces in the described dryer section to regulate the temperature of drying treatment in the described dryer section with described dry flue gas.In addition, between the exhanst gas outlet of described after-treatment system and described retort section, also be connected with the destructive distillation burner, between the exhanst gas outlet of the exhanst gas outlet of described after-treatment system and described destructive distillation burner, also be connected with the destructive distillation pipeline.Described destructive distillation burner can burn the part coal gas that produces in the described after-treatment system, be used for the destructive distillation flue gas that the destructive distillation of described retort section is handled with generation, and described destructive distillation pipeline can mix the part coal gas that produces in the described after-treatment system to regulate the temperature of the destructive distillation processing in the described retort section with described destructive distillation flue gas mutually.The smoke inlet place of described drying and burning device and described destructive distillation burner also is connected with the combustion air blower fan that combustion air is provided respectively in described drying and burning device and described destructive distillation burner.
The working process of the cooling structure of dry quenching(of coke) of the present invention is that by gas distribution pipe 2 feeding cold flue gas, this cold flue gas rises the destructive distillation product is carried out the quenching cooling, flows out cooling structure by gas collection umbrella 1 afterwards.If passed through that the temperature of cold flue gas quenching refrigerative destructive distillation product can not satisfy direct discharge cooling structure then needs carry out a spot of water spray, destructive distillation product to the cooling structure bottom cools off, injection flow rate need be controlled according to the temperature conditions of destructive distillation product, under the work of pushing machine the destructive distillation product is discharged cooling structure of the present invention again after the water spray cooling.
The cooling structure of dry quenching(of coke) of the present invention utilizes the cooled flue gas that produces in the brown coal retort process to cool off semicoke, after advancing fully heat exchange, the semicoke temperature drop to 150 the degree (degree centigrade) below, flue-gas temperature then bring up to 280 the degree (degree centigrade) about, this part flue gas is sent in the coal bunker at coke oven top again and raw coal carries out heat exchange, discharges out of the furnace at last.
In other embodiment, gas collection umbrella 1 and gas distribution pipe 2 all can for be horizontally disposed with, a plurality of metal tubes of bottom-open.The cross section of described metal tube is a trilateral.The position that described metal tube in the vertical direction height is identical is provided with.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (7)
1. the cooling structure of a dry quenching(of coke) is characterized in that, comprising:
Body (5);
Gas distribution pipe (2), it is arranged on this body (5) inside, and the cold flue gas conducting that coal cinder can be carried out the drying treatment generation is to described body (5);
Gas collection umbrella (1), it is arranged at the top of described gas distribution pipe (2), the flue gas through heat exchange can be discharged described body (5);
Blanking device, it can be used to accept the destructive distillation product in the described body and makes this destructive distillation product discharge described cooling structure according to pre-set velocity.
2. cooling structure according to claim 1 is characterized in that, also comprises waterworks (4), its be arranged at described blanking device the below, can be to the cooling of spraying water of the destructive distillation product of described body (5) bottom.
3. cooling structure according to claim 1 is characterized in that, the part that is positioned at below the described blanking device of described body (5) is up big and down small awl bucket shape, with easy-unloading.
4. according to the arbitrary described cooling structure of claim 1 to 3, it is characterized in that described blanking device is pushing machine (3).
5. according to the arbitrary described cooling structure of claim 1 to 3, it is characterized in that at least one metal tube that described gas collection umbrella (1) and described gas distribution pipe (2) are and are horizontally disposed with, the below is open.
6. cooling structure according to claim 5 is characterized in that, the cross section of described metal tube is a trilateral.
7. cooling structure according to claim 6 is characterized in that, the position that described metal tube in the vertical direction height is identical is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910252430A CN101760212A (en) | 2009-12-04 | 2009-12-04 | Cooling structure for dry method coke quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910252430A CN101760212A (en) | 2009-12-04 | 2009-12-04 | Cooling structure for dry method coke quenching |
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| CN101760212A true CN101760212A (en) | 2010-06-30 |
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| CN200910252430A Pending CN101760212A (en) | 2009-12-04 | 2009-12-04 | Cooling structure for dry method coke quenching |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732269A (en) * | 2011-03-29 | 2012-10-17 | 何巨堂 | Coke dry quenching method for coal coking device |
| CN104152163A (en) * | 2014-08-01 | 2014-11-19 | 神华集团有限责任公司 | Crushed coal pyrolysis and coke dry quenching method and device |
| CN105567263A (en) * | 2016-03-10 | 2016-05-11 | 王平山 | Method for carrying out dry quenching and gas making on coked red coke and coking wastewater treatment |
| CN109593533A (en) * | 2019-01-30 | 2019-04-09 | 陕西煤业化工技术研究院有限责任公司 | A kind of dry quenching system and method |
| CN113280616A (en) * | 2021-06-08 | 2021-08-20 | 中冶焦耐(大连)工程技术有限公司 | Low-rank pulverized coal drying process and system |
-
2009
- 2009-12-04 CN CN200910252430A patent/CN101760212A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732269A (en) * | 2011-03-29 | 2012-10-17 | 何巨堂 | Coke dry quenching method for coal coking device |
| CN104152163A (en) * | 2014-08-01 | 2014-11-19 | 神华集团有限责任公司 | Crushed coal pyrolysis and coke dry quenching method and device |
| CN104152163B (en) * | 2014-08-01 | 2017-04-26 | 神华集团有限责任公司 | Crushed coal pyrolysis and coke dry quenching method and device |
| CN105567263A (en) * | 2016-03-10 | 2016-05-11 | 王平山 | Method for carrying out dry quenching and gas making on coked red coke and coking wastewater treatment |
| CN105567263B (en) * | 2016-03-10 | 2018-10-26 | 王平山 | Gas making and coking waste water treatment method are put out in a kind of red parch of coking |
| CN109593533A (en) * | 2019-01-30 | 2019-04-09 | 陕西煤业化工技术研究院有限责任公司 | A kind of dry quenching system and method |
| CN113280616A (en) * | 2021-06-08 | 2021-08-20 | 中冶焦耐(大连)工程技术有限公司 | Low-rank pulverized coal drying process and system |
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Application publication date: 20100630 |