CN202671497U - Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium - Google Patents
Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium Download PDFInfo
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- CN202671497U CN202671497U CN 201220325777 CN201220325777U CN202671497U CN 202671497 U CN202671497 U CN 202671497U CN 201220325777 CN201220325777 CN 201220325777 CN 201220325777 U CN201220325777 U CN 201220325777U CN 202671497 U CN202671497 U CN 202671497U
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- fluidized bed
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- 239000003245 coal Substances 0.000 title claims abstract description 55
- 238000000197 pyrolysis Methods 0.000 title abstract description 21
- 238000010980 drying distillation Methods 0.000 title abstract 3
- 238000001035 drying Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 206010020843 Hyperthermia Diseases 0.000 claims description 9
- 238000004821 distillation Methods 0.000 claims description 9
- 230000036031 hyperthermia Effects 0.000 claims description 9
- 238000013021 overheating Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000571 coke Substances 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 9
- 239000003077 lignite Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 5
- 239000011269 tar Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011285 coke tar Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The utility model provides a fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium, sequentially comprising a crusher, a spiral conveyer, vibrating fluidized bed drying equipment, a cyclone separator, a horizontal multi-chamber fluidized bed dry-distillation furnace, a first-level cyclone separator connector, a second-level cyclone separator, an oil-gas cooling system connector, an oil-water separator, a coke quenching system, a high-temperature overheated steam boiler and a low-temperature overheated steam boiler. According to the fluidized bed pulverized coal drying and dry-distillation system, the consumption of overheated steam is less, the energy consumption is low, the water content of dried pulverized coal is low and uniform; and the quality and yield of tar generated through pyrolysis of pulverized coal, the system technological process is simple, the oxygen-free environment is required, and the operation is safe.
Description
Technical field
The utility model relates to technical field of coal chemical industry, is specifically related to a kind of fluid bed powder coal drying, distillation system based on the superheated vapo(u)r medium.
Background technology
Along with the raising of technology, the low rotten fine coal in the coal in China place of production rolls up, but because the restriction of existing coal conversion technology, a lot of fine coal resources can't be utilized.Low rotten fine coal has usually that moisture is large, particle diameter is little, and chemical reactivity is good, and is inflammable frangible, and the characteristics such as the high and low calorific value of ash content are unsuitable for long distance transportation and long-time the storage; But the low rotten fine coal of the not upgrading of directly burning, not only efficiency of combustion is low, also can cause serious environmental pollution.Therefore, drying, the destructive distillation upgrading technology of the low rotten fine coal of exploitation be solve that coal resources are efficient, one of the important channel of clean utilization.
Although the existing for many years research of the dry technology of coal, still there are a lot of problems in existing industrialization and accurate industrialized technology.As: power consumption and the maintenance cost of coal high temperature flue gas tube type drying technology are higher, and coal dust directly contacts with flue gas and has certain potential safety hazard.And the pipe drier take superheated vapo(u)r as drying medium exists the single device drying power little, and caliber is thin, easily stops up, and invests highly, pollutes the problem such as large and fails large-scale promotion.
Coal carbonization is the committed step that the clean Efficient Conversion of coal utilizes.Existing dry distillation of coal technology majority is applicable to high-quality lump coal, and is not suitable for low rotten fine coal; The small scale of existing gas retort, the coal treatment capacity is little, and liquid state and gaseous state products collection efficiency are low.As: dust content is high in the tar that the destructive distillation of fine coal ebullated bed gas retort obtains, and the dry distillation gas calorific value is low; The air-flow internally heated retort oven then requires the raw coal lumpiness between 20～80mm, the poor thermal conductivity of lump coal, and bed permeability is bad, is heated inhomogeneous, and the tar yield that destructive distillation obtains is low, and the semicoke quality is inhomogeneous; And vertical gas retort destructive distillation institute heat requirement is imported into by the heating furnace wall, and thermo-efficiency is low.Therefore the dry distillation of coal technology that up to the present also not have really maturation that can large-scale promotion is particularly for the retorting technique of the low fine coal that goes bad.
The utility model content
The purpose of this utility model is to provide a kind of technical process simple, oxygen-free environment, the vibra fluidized bed drying and the horizontal multi-cell fluidized bed distillation system that are applicable to high-moisture, low rotten fine coal of operational safety.
The purpose of this utility model is achieved through the following technical solutions:
Fluid bed powder coal based on the superheated vapo(u)r medium is dry, distillation system, comprise crusher 1, vibra fluidized bed drying equipment 3, cyclonic separator 4, horizontal multi-cell fluidized bed gas retort 5, primary cyclone 6, secondary cyclone 7, oil gas cooling separation 8, water-and-oil separator 9, quench system 10, cryogenic overheating steam boiler 11, hyperthermia and superheating steam boiler 12; Wherein, described crusher 1 connects vibra fluidized bed drying equipment 3 successively, cyclonic separator 4; Described cyclonic separator 4 outlets are connected horizontal multi-cell fluidized bed gas retort 5, primary cyclone 6, secondary cyclone 7, oil gas cooling separation 8, water-and-oil separator 9 jointly successively with 3 outlets of vibra fluidized bed drying equipment; Described oil gas cooling separation 8 gas outlet connects respectively hyperthermia and superheating steam boiler 12 and cryogenic overheating steam boiler 11, described hyperthermia and superheating steam boiler 12 connects horizontal multi-cell fluidized bed gas retort 5, described cryogenic overheating steam boiler 11 connects vibra fluidized bed drying equipment 3, and described horizontal multi-cell fluidized bed gas retort 5 solidss outlet connects quench system 10.
Described horizontal multi-cell fluidized bed gas retort 5 interior at least one heater that arrange.
Also worm conveyor 2 can be set, to connect crusher 1 and vibra fluidized bed drying equipment 3.
The fluid bed powder coal based on the superheated vapo(u)r medium that the utility model provides is dry, distillation system, and following beneficial effect is arranged: fine coal directly contacts with superheated vapo(u)r, and heat transfer efficiency is high, and the superheated vapo(u)r consumption is few, and energy consumption is low; The residence time of fine coal in vibra fluidized bed drying equipment is short, and the water content of dry rear fine coal is low and even; Adopt superheated vapo(u)r as fluidizing medium, can improve to a certain extent quality of coke tar and productive rate that pulverized coal pyrolysis produces, the semicoke quality is even, C in the coal gas
2The content of above alkane, alkene and alkynes is high, and calorific value is large; In horizontal multi-cell fluidized bed, be provided with interior heater, can improve the thermo-efficiency of fine coal destructive distillation, reduce the superheated vapo(u)r consumption little, reduce energy consumption.Whole system combines drying and the destructive distillation of fine coal, and technical process is simple, oxygen-free environment, operational safety.
Description of drawings
Fig. 1 is that the utility model is dry based on the fluid bed powder coal of superheated vapo(u)r medium, the process flow sheet of distillation system.
Among the figure: 1. crusher; 2. worm conveyor; 3. vibra fluidized bed drying equipment; 4. cyclonic separator; 5. horizontal multi-cell fluidized bed gas retort; 6. primary cyclone; 7. secondary cyclone; 8. oil gas cooling separation; 9. water-and-oil separator; 10. quench system; 11. cryogenic overheating steam boiler; 12. hyperthermia and superheating steam boiler
Embodiment
The utility model, the technical scheme among the embodiment is clearly and completely described below in conjunction with the accompanying drawing in the embodiment of the invention for better illustrating.
Embodiment 1: as shown in Figure 1, the fine coal treatment capacity of the present embodiment is 0.5t/h, is about 2.0mm with median size, and moisture as received coal content is that 20% brown coal are raw material, and embodiment comprises the processing step of following order:
(1) the brown coal raw coal is crushed to particle diameter below 3mm through crusher 1, delivers to vibrated fluidized bed 3 inner dryings by worm conveyor 2 again;
(2) the brown coal uniform particles is distributed on the Porous Base of vibrated fluidized bed 3, and superheated vapo(u)r carries out heat drying by porous plate to brown coal, and coal particle is even fluidisation under mechanical vibration force and superheated vapo(u)r effect, rapid drying.The charging temperature of vibrated fluidized bed 3 interior superheated vapo(u)rs is 200 ℃, and the residence time of brown coal in vibrated fluidized bed 3 is 15min, and outlet brown coal moisture content is below 10%.The dry coal that the fine coal that superheated vapo(u)r is carried secretly is discharged with vibrated fluidized bed 3 discharge ports after cyclonic separator 4 filters is delivered to horizontal multi-cell fluidized bed gas retort 5 and is carried out low-temperature pyrolysis.
(3) dried fine coal is evenly distributed on the Porous Base in the horizontal multi-cell fluidized bed gas retort 5, superheated vapo(u)r, is provided with interior heater and heats pulverized coal particle by the radiative transfer mode the even fluidisation of fine coal by porous plate in the stove, the coal particle diameter is little, temperature rise rate is fast, rapidly pyrolysis.The charging temperature of superheated vapo(u)r is 600 ℃, and pyrolysis temperature is 550 ℃, and pressure maintains 0.1Mpa, and the destructive distillation time is 20min.
(4) high temperature carbonization gas is delivered to 8 coolings of oil gas cooling separation after by primary cyclone 6 and secondary cyclone 7 dedustings, cooled oil-water mixture is delivered to water-and-oil separator 9 again and is carried out oily water separation, finally obtains the higher clean gas of finished product tar and calorific value.The semicoke that horizontal multi-cell fluidized bed gas retort 5 discharge ports are discharged stores after delivering to quench system 10 coolings.
(5) use the coal gas of fine coal destructive distillation generation as the heating fuel use of cryogenic overheating steam boiler 11 and hyperthermia and superheating steam boiler 12,200 ℃ of superheated vapo(u)rs that cryogenic overheating steam boiler 11 produces are delivered to vibra fluidized bed drying equipment 3 and are carried out the fine coal drying, and 600 ℃ of superheated vapo(u)rs that hyperthermia and superheating steam boiler 12 produces enter horizontal multi-cell fluidized bed gas retort 5 and carry out the fine coal low-temperature pyrolysis.
The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. fluid bed powder coal drying, distillation system based on a superheated vapo(u)r medium is characterized in that, comprise crusher (1), vibra fluidized bed drying equipment (3), cyclonic separator (4), horizontal multi-cell fluidized bed gas retort (5), primary cyclone (6), secondary cyclone (7), oil gas cooling separation (8), water-and-oil separator (9), quench system (10), cryogenic overheating steam boiler (11), hyperthermia and superheating steam boiler (12); Wherein, described crusher (1) connects vibra fluidized bed drying equipment (3) successively, cyclonic separator (4); Described cyclonic separator (4) outlet is connected horizontal multi-cell fluidized bed gas retort (5) jointly successively with vibra fluidized bed drying equipment (3) outlet, primary cyclone (6), secondary cyclone (7), oil gas cooling separation (8), water-and-oil separator (9); The outlet of described oil gas cooling separation (8) gas connects respectively hyperthermia and superheating steam boiler (12) and cryogenic overheating steam boiler (11), described hyperthermia and superheating steam boiler (12) connects horizontal multi-cell fluidized bed gas retort (5), described cryogenic overheating steam boiler (11) connects vibra fluidized bed drying equipment (3), and the outlet of described horizontal multi-cell fluidized bed gas retort (5) solids connects quench system (10).
2. fluid bed powder coal drying, distillation system based on the superheated vapo(u)r medium according to claim 1 is characterized in that, in the described horizontal multi-cell fluidized bed gas retort (5) at least one heater are set.
3. fluid bed powder coal drying, distillation system based on the superheated vapo(u)r medium according to claim 1 is characterized in that, also comprise worm conveyor (2), to connect crusher (1) and vibra fluidized bed drying equipment (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220325777 CN202671497U (en) | 2012-07-05 | 2012-07-05 | Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium |
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| CN 201220325777 CN202671497U (en) | 2012-07-05 | 2012-07-05 | Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium |
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| CN202671497U true CN202671497U (en) | 2013-01-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766475A (en) * | 2012-07-05 | 2012-11-07 | 北京神雾环境能源科技集团股份有限公司 | Method and system for performing drying and dry distillation on fluidized bed pulverized coal based on overheating steam medium |
| CN103361093A (en) * | 2013-06-28 | 2013-10-23 | 陕西煤业化工技术研究院有限责任公司 | System and method for producing coal briquette and formed coke through pyrolysis coke powder comprehensively and efficiently |
| CN113685837A (en) * | 2021-08-24 | 2021-11-23 | 西安西热锅炉环保工程有限公司 | Multi-medium dry biomass direct coupling power generation system and method |
-
2012
- 2012-07-05 CN CN 201220325777 patent/CN202671497U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766475A (en) * | 2012-07-05 | 2012-11-07 | 北京神雾环境能源科技集团股份有限公司 | Method and system for performing drying and dry distillation on fluidized bed pulverized coal based on overheating steam medium |
| CN103361093A (en) * | 2013-06-28 | 2013-10-23 | 陕西煤业化工技术研究院有限责任公司 | System and method for producing coal briquette and formed coke through pyrolysis coke powder comprehensively and efficiently |
| CN103361093B (en) * | 2013-06-28 | 2015-06-17 | 陕西煤业化工技术研究院有限责任公司 | System and method for producing coal briquette and formed coke through pyrolysis coke powder comprehensively and efficiently |
| CN113685837A (en) * | 2021-08-24 | 2021-11-23 | 西安西热锅炉环保工程有限公司 | Multi-medium dry biomass direct coupling power generation system and method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Fluidized bed pulverized coal drying and dry-distillation system based on overheated steam medium Effective date of registration: 20180322 Granted publication date: 20130116 Pledgee: The Bank of Beijing Limited by Share Ltd. Anwar Road Branch Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000210 |
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Effective date of registration: 20190121 Granted publication date: 20130116 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220705 Granted publication date: 20130116 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20190705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |