CN105062533B - As-fired coal material drying and preheating device - Google Patents
As-fired coal material drying and preheating device Download PDFInfo
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- CN105062533B CN105062533B CN201510465596.7A CN201510465596A CN105062533B CN 105062533 B CN105062533 B CN 105062533B CN 201510465596 A CN201510465596 A CN 201510465596A CN 105062533 B CN105062533 B CN 105062533B
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- air flue
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- fine coal
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Abstract
The present invention relates to as-fired coal material drying and preheating device, between coal bunker discharging opening and furnace roof, bulkhgead gate is installed between coal bin top and coal bunker discharging opening, the coal bin mouth that gos deep into of coal bin bottom and furnace roof connects, the arranging multiplayer cutting plate on coal bin intermediate altitude direction, cutting plate both sides are provided with venetian blind type air flue, fine coal enters from top, the carbonization chamber of low order sub-material gas retort is directly entered by cutting plate, during fine coal is descending, stack gases enter waste gas chamber from coal bin side, entered by venetian blind type air flue, through fine coal layer, discharged from opposite side venetian blind type air flue and waste gas chamber, as-fired coal is preheated.The present apparatus is dried into stove fine coal, removes wherein moisture, reduces the vapor in raw coke oven gas, lifts gas quality；Fine coal can shorten retorting time in stove after being preheated outside stove, improve destructive distillation furnace output；The heat of stack gases is made full use of, improves the overall thermal efficiency of low order fine coal gas retort.
Description
Technical field
The present invention relates to one kind using stack gases preheating shove charge device for coal, belong to low temperature distillation technology model in low-order coal
Farmland.
Background technology
In low order fine coal gas retort production process, enter the thermal efficiency that stove fine coal moisture senior general has a strong impact on gas retort, powder
Moisture in coal enters after body of heater, it is necessary to which carrying out preheating produces a large amount of water vapours, and water vapour is mixed into gas purification with coal gas
System, raw coke oven gas volume is increased, the flow increase of tedge root, in the case where caliber is constant, flow velocity increase can be by coal
Powder brings coal gas processing system into, influences raw coke oven gas quality.Coal gas and air mixed combustion, production in low order fine coal gas retort combustion chamber
Raw a large amount of high-temp waste gas, temperature is still more than 200 DEG C after gas retort regenerator for waste gas, and these stack gases are directly through wind
Machine chimney is discharged into air, causes substantial amounts of thermal loss, influences the overall thermal efficiency of gas retort, how by the heat of stack gases
Recovery is always the problem that coking industry is paid close attention to.
The stack gases that use at present carry out coal preheating, and outside warm Dou Lu areas, furnace roof is transported to after preheating, its
Airborne dust is serious during transport, and Pipeline Dust-Cleaning System is complicated, poor practicability.Therefore in furnace roof using stack gases preheating powder
Carbonization chamber technology is directly loadable into after coal has obvious technical advantage and application prospect.
The content of the invention
To be solved by this invention is to be directed to the problem of low order fine coal gas retort as-fired coal moisture is big, there is provided a kind of as-fired coal
Expect drying and preheating device, the fine coal before drying and preheating low order fine coal gas retort shove charge, as-fired coal is entered using stack gases waste heat
Row preheating, removes moisture unnecessary in fine coal, improves the temperature before fine coal shove charge.
To achieve the above object, the present invention is realized using following technical scheme：
As-fired coal material drying and preheating device, between coal bunker discharging opening and furnace roof, coal bin top and coal bunker discharging opening
Between bulkhgead gate is installed, coal bin bottom and furnace roof go deep into the connection of coal bin mouth, the arranging multiplayer on coal bin intermediate altitude direction
Cutting plate, cutting plate both sides are provided with venetian blind type air flue, and fine coal enters from top, is directly entered low order sub-material by cutting plate and does
The carbonization chamber of furnace, during fine coal is descending, stack gases enter waste gas chamber from coal bin side, are entered by venetian blind type air flue
Enter, through fine coal layer, discharged from opposite side venetian blind type air flue and waste gas chamber, as-fired coal is preheated.
Described coal bin is welding structure narrow above and below width among sealing, and coal bin side is provided with exhaust gas entrance, opposite side
Provided with waste gas outlet.
Described air flue upper end is connected with coal bin, and air flue lower end is hanging, and air flue both sides are waste gas chamber, are fine coal among air flue
Passage, side waste gas chamber and exhaust gas entrance UNICOM, opposite side waste gas chamber and waste gas outlet UNICOM.
Described cutting plate, which is that two blocks of steel plates are angled, to be welded, and the angle between two steel plates is 20-40 °.
Described stack gases are directly contacted with coal charge and changed by the gap inlet and outlet coal bin between air flue, stack gases
Heat.
Compared with prior art, the beneficial effects of the invention are as follows：
1) dry stove fine coal, remove wherein moisture, reduce the vapor in raw coke oven gas, lift gas quality；
2) retorting time in stove can be shortened after fine coal preheats outside stove, improve destructive distillation furnace output；
3) heat of stack gases is made full use of, improves the overall thermal efficiency of low order fine coal gas retort；
4) stack gases directly contact with fine coal, and heat exchange efficiency is high；
5) it is compact-sized, it is easily installed and overhauls, good seal performance, can adjust stack gases flow, control in heat exchanger
Waste gas flow velocity at inlet port, avoids airborne dust.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is A-A sectional views in Fig. 1.
In figure：1- coal bin 2- cutting plate 3- air flue 4- waste gas chamber 5- exhaust gas entrance 6- waste gas outlets
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
As shown in Figure 1-2, as-fired coal material drying and preheating device, between coal bunker discharging opening and furnace roof, including coal bin,
Cutting plate, the air flue of shutter, waste gas chamber, exhaust gas entrance and outlet；Coal bin is welding narrow above and below width among sealing
Structure, coal bin side are provided with exhaust gas entrance, and opposite side is provided with waste gas outlet.
The top of coal bin 1 is connected with coal bunker discharging opening bulkhgead gate flange, and the bottom of coal bin 1 and furnace roof go deep into coal bin mouth flange
Connection, at least 2 layers of cutting plate 2 are arranged on the intermediate altitude direction of coal bin 1, cutting plate 2, which is that two blocks of steel plates are angled, to be welded, two steel
Angle between plate is 20-40 °, and the both sides of cutting plate 2 are provided with venetian blind type air flue 3, and the upper end of air flue 3 is connected with coal bin 1, air flue 3
Lower end is hanging, and the both sides of air flue 3 are waste gas chamber 4, be fine coal passage, side waste gas chamber 4 and the UNICOM of exhaust gas entrance 5 among air flue 3, separately
Side waste gas chamber 4 and the UNICOM of waste gas outlet 6.
Fine coal is entered by the top of coal bin 1, and bottom discharge, continuously feed discharge, is directly entered by the fine coal of preheating and drying
The carbonization chamber of low order sub-material gas retort.Cutting plate 2 is used to dredge and sub-material, the gas permeability in coal seam during increase fine coal declines.
Stack gases enter waste gas chamber by exhaust gas entrance 5, and waste gas by air flue 3 enters coal bin after entering waste gas chamber 4, through fine coal layer,
Into the air flue 3 and waste gas chamber 4 of opposite side, discharged by waste gas outlet 6.Stack gases and coal charge direct contact heat transfer.Air flue 3
For the welding structure of shutter form, waste gas is come in and gone out coal bin by air flue, will not be entered during the fine coal inside coal bin is descending useless
Air cavity, if the slope design of waste gas chamber bottom can also ensure fine coal into can smoothly be discharged to after waste gas chamber inside coal bin,
In order to avoid waste gas chamber and air flue block.
Described above is only the general principle of the present invention, and not the present invention is imposed any restrictions, every right according to the present invention
It carries out equivalent variations and modification, within the category of the art of this patent protection scheme.
Claims (3)
1. as-fired coal material drying and preheating device, between coal bunker discharging opening and furnace roof, coal bin top and coal bunker discharging opening it
Between bulkhgead gate is installed, coal bin bottom and furnace roof go deep into the connection of coal bin mouth, it is characterised in that return the heat of stack gases
Receive, carbonization chamber is directly loadable into after furnace roof is using stack gases preheating fine coal, the coal bin is wide narrow up and down among sealing
Welding structure, the arranging multiplayer cutting plate on coal bin intermediate altitude direction, cutting plate, which is that two blocks of steel plates are angled, to be welded, two steel plates
Between angle be 20-40 °, cutting plate be used for dredge and sub-material, increase fine coal decline during coal seam gas permeability；
Cutting plate both sides are provided with venetian blind type air flue, and fine coal enters from top, and low order sub-material destructive distillation is directly entered by cutting plate
The carbonization chamber of stove, during fine coal is descending, more than 200 DEG C stack gases caused by low order fine coal gas retort combustion chamber are from coal bin
Side enters waste gas chamber, is entered by venetian blind type air flue, through fine coal layer, is arranged from opposite side venetian blind type air flue and waste gas chamber
Go out, stack gases and coal charge direct contact heat transfer preheat to as-fired coal, stack gases entered by the gap between air flue and
Discharge coal bin；
Fine coal is entered by coal bin top, bottom discharge, and continuously feed discharge, and low order point is directly entered by the fine coal of preheating and drying
Expect the carbonization chamber of gas retort.
2. as-fired coal material drying and preheating device according to claim 1, it is characterised in that described coal bin side is provided with useless
Gas entrance, opposite side are provided with waste gas outlet.
3. as-fired coal material drying and preheating device according to claim 1, it is characterised in that described air flue upper end and coal bin
Connection, air flue lower end is hanging, and air flue both sides are waste gas chamber, is fine coal passage among air flue, and side waste gas chamber joins with exhaust gas entrance
It is logical, opposite side waste gas chamber and waste gas outlet UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510465596.7A CN105062533B (en) | 2015-08-03 | 2015-08-03 | As-fired coal material drying and preheating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510465596.7A CN105062533B (en) | 2015-08-03 | 2015-08-03 | As-fired coal material drying and preheating device |
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| Publication Number | Publication Date |
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| CN105062533A CN105062533A (en) | 2015-11-18 |
| CN105062533B true CN105062533B (en) | 2018-02-27 |
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| CN201510465596.7A Active CN105062533B (en) | 2015-08-03 | 2015-08-03 | As-fired coal material drying and preheating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106010609A (en) * | 2016-07-11 | 2016-10-12 | 神木县三江煤化工有限责任公司 | Gas guide system and method |
| CN107513396A (en) * | 2017-08-31 | 2017-12-26 | 榆林煤化工产业促进中心 | A kind of fine coal drying oven dried based on packed bed and drying device and technique based on the drying oven |
| CN110699102A (en) * | 2019-11-05 | 2020-01-17 | 西安热工研究院有限公司 | Drying and pyrolyzing furnace and drying and pyrolyzing method for municipal domestic garbage |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202595039U (en) * | 2012-04-17 | 2012-12-12 | 北京德天御投资管理有限责任公司 | Gas heat carrier low-temperature pyrolyzing furnace |
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| CN2042374U (en) * | 1989-01-27 | 1989-08-09 | 王振声 | Filter for granular with auto-moving bed |
| CN101974344B (en) * | 2010-11-12 | 2013-08-07 | 中冶焦耐(大连)工程技术有限公司 | Drying process for humidifying coals by using coke oven flue gas and device |
| DE102012012417B4 (en) * | 2012-06-25 | 2019-06-13 | Thyssenkrupp Industrial Solutions Ag | Method and apparatus for improved preheating of coal by heat exchange with the cooling gas of a Kokstrockenkühlanlage |
| CN104130790B (en) * | 2014-06-30 | 2018-12-07 | 北京国电富通科技发展有限责任公司 | A kind of coal carbonization technology of indirect heat exchange |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202595039U (en) * | 2012-04-17 | 2012-12-12 | 北京德天御投资管理有限责任公司 | Gas heat carrier low-temperature pyrolyzing furnace |
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Effective date of registration: 20180726 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |