CN103911198A - Normal-temperature lignite drying and upgrading method - Google Patents
Normal-temperature lignite drying and upgrading method Download PDFInfo
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- CN103911198A CN103911198A CN201410140534.4A CN201410140534A CN103911198A CN 103911198 A CN103911198 A CN 103911198A CN 201410140534 A CN201410140534 A CN 201410140534A CN 103911198 A CN103911198 A CN 103911198A
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- brown coal
- lignite
- upgrading
- normal
- temperature
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- 239000003077 lignite Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001035 drying Methods 0.000 title abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000007605 air drying Methods 0.000 claims description 14
- 238000013467 fragmentation Methods 0.000 claims description 8
- 238000006062 fragmentation reaction Methods 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000005453 pelletization Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a normal-temperature lignite drying and upgrading method. The normal-temperature lignite drying and upgrading method comprises the following steps: crushing the lignite into particles not greater than 3mm by using a roll crusher with linear pressure of 0.3t/mm-1.5t/mm; then, removing moisture contained in the broken lignite by ventilating under gas flow not higher than 40 DEG C; and finally, briquetting and pelletizing the broken lignite by adopting a briquetting machine with linear pressure of 0.5t/mm-2t/mm. By virtue of the normal-temperature lignite drying and upgrading method disclosed by the invention, moisture contained in the lignite is greatly removed, and calorific value is greatly improved, so that normal-temperature drying and upgrading of the lignite is realized, and therefore, the normal-temperature lignite drying and upgrading method has the advantages of being less in energy consumption, low in investment, short in construction period, high in benefit, environment-friendly and safe, and realizes major breakthrough of the lignite drying and upgrading under a normal-temperature state.
Description
Technical field
The present invention relates to a kind of brown coal drying and upgrading method, especially a kind of brown coal Air drying method for upgrading.
Background technology
Existing brown coal drying and upgrading method, all will take type of heating to carry out, temperature height very easily catch fire even explosion causedly, temperature is low, has not only extended time of drying, and causes energy dissipation, a whole set of process unit is huge, construction investment is huge.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of brown coal Air drying method for upgrading is provided, solve existing brown coal drying and upgrading method and have potential safety hazard, energy dissipation and the large problem of investment.
For achieving the above object, technical scheme of the present invention is: a kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) to use linear pressure be 0.3-1.5t/mm, and the broken machine of roller by brown coal crushing is≤particle of 3mm;
(2) under the air-flow of≤40 DEG C, ventilate the brown coal contained humidity after fragmentation is removed;
(3) briquetting press that employing linear pressure is 0.5-2t/mm is by the granulation of broken brown coal briquetting.
Further arrange, described in step (2), gas flow temperature is 10-40 DEG C.
Further arrange, described in step (2), ventilation time is 60-300min.
The invention has the beneficial effects as follows: power consumption less, invest low, the construction period is short, high efficiency, environmental protection, safety, has realized the important breakthrough of brown coal drying and upgrading under normal temperature state, brown coal contained humidity is deviate from a large number, thermal value improves greatly.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Yunnan Muller brown coal are used to linear pressure is 0.3t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 20 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 150 minutes;
(3) briquetting press that employing linear pressure is 0.9t/mm is by the granulation of broken brown coal briquetting.
Original Yunnan Muller brown coal water content is 53%, and through technical finesse of the present invention, water content removes 33%.
Embodiment 2
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Yunnan Muller brown coal are used to linear pressure is 1.5t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 30 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 100 minutes;
(3) briquetting press that employing linear pressure is 2t/mm is by the granulation of broken brown coal briquetting.
Original Yunnan Muller brown coal water content is 53%, and through technical finesse of the present invention, water content removes 36%.
Embodiment 3
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Yunnan Muller brown coal are used to linear pressure is 0.9t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 40 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 60 minutes;
(3) briquetting press that employing linear pressure is 1.2t/mm is by the granulation of broken brown coal briquetting.
Original Yunnan Muller brown coal water content is 53%, and through technical finesse of the present invention, water content removes 38%.
Embodiment 4
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Zhaotong County, Yunnan brown coal are used to linear pressure is 0.5t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 15 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 200 minutes;
(3) briquetting press that employing linear pressure is 0.8t/mm is by the granulation of broken brown coal briquetting.
Original Zhaotong County, Yunnan brown coal water content is 55%, and through technical finesse of the present invention, water content removes 37%.
Embodiment 5
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Zhaotong County, Yunnan brown coal are used to linear pressure is 1.0t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 25 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 120 minutes;
(3) briquetting press that employing linear pressure is 0.5t/mm is by the granulation of broken brown coal briquetting.
Original Zhaotong County, Yunnan brown coal water content is 55%, and through technical finesse of the present invention, water content removes 35%.
Embodiment 6
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Zhaotong County, Yunnan brown coal are used to linear pressure is 1.2t/mm, and the broken crusher machine of roller is≤particle of 3mm;
(2) under the air-flow of 10 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 300 minutes;
(3) briquetting press that employing linear pressure is 1.5t/mm is by the granulation of broken brown coal briquetting.
Original Zhaotong County, Yunnan brown coal water content is 55%, and through technical finesse of the present invention, water content removes 40%.
Embodiment 7
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Indonesia brown coal are used the broken crusher machine of roller that linear pressure is 0.4t/mm be≤particle of 3mm;
(2) under the air-flow of 30 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 100 minutes;
(3) briquetting press that employing linear pressure is 1.0t/mm is by the granulation of broken brown coal briquetting.
Original Indonesia brown coal water content is 56%, and through technical finesse of the present invention, water content removes 36%.
Embodiment 8
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Indonesia brown coal are used the broken crusher machine of roller that linear pressure is 0.8t/mm be≤particle of 3mm;
(2) under the air-flow of 35 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 80 minutes;
(3) briquetting press that employing linear pressure is 0.7t/mm is by the granulation of broken brown coal briquetting.
Original Indonesia brown coal water content is 56%, and through technical finesse of the present invention, water content removes 39%.
Embodiment 9
A kind of brown coal Air drying method for upgrading, comprises the following steps:
(1) Indonesia brown coal are used the broken crusher machine of roller that linear pressure is 1.1t/mm be≤particle of 3mm;
(2) under the air-flow of 40 DEG C, ventilate and the brown coal contained humidity after fragmentation was removed in 60 minutes;
(3) briquetting press that employing linear pressure is 1.2t/mm is by the granulation of broken brown coal briquetting.
Original Indonesia brown coal water content is 56%, and through technical finesse of the present invention, water content removes 38%.
Claims (3)
1. a brown coal Air drying method for upgrading, is characterized in that: comprise the following steps:
(1) to use linear pressure be 0.3-1.5t/mm, and the broken machine of roller by brown coal crushing is≤particle of 3mm;
(2) under the air-flow of≤40 DEG C, ventilate the brown coal contained humidity after fragmentation is removed;
(3) briquetting press that employing linear pressure is 0.5-2t/mm is by the granulation of broken brown coal briquetting.
2. a kind of brown coal Air drying method for upgrading as claimed in claim 1, is characterized in that: described in step (2), gas flow temperature is 10-40 DEG C.
3. a kind of brown coal Air drying method for upgrading as claimed in claim 1, is characterized in that: described in step (2), ventilation time is 60-300min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140534.4A CN103911198A (en) | 2014-04-09 | 2014-04-09 | Normal-temperature lignite drying and upgrading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140534.4A CN103911198A (en) | 2014-04-09 | 2014-04-09 | Normal-temperature lignite drying and upgrading method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103911198A true CN103911198A (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410140534.4A Pending CN103911198A (en) | 2014-04-09 | 2014-04-09 | Normal-temperature lignite drying and upgrading method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546945A (en) * | 2016-01-07 | 2016-05-04 | 河北志诚物流有限公司 | Coal briquette drying technology and coal briquette air drying room |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508539A (en) * | 1982-03-04 | 1985-04-02 | Idemitsu Kosan Company Limited | Process for improving low quality coal |
| CN101168694A (en) * | 2006-10-27 | 2008-04-30 | 神华国际贸易有限责任公司 | Low metamorphic coal binderless hot pressing method and device |
| CN101285587A (en) * | 2008-03-28 | 2008-10-15 | 中国神华能源股份有限公司 | Low metamorphic grade coal drying and dewatering process |
| CN102965170A (en) * | 2012-11-30 | 2013-03-13 | 山东天力干燥股份有限公司 | Energy-saving environment-friendly lignite briquette preparation technology and system |
| CN103602360A (en) * | 2013-11-15 | 2014-02-26 | 华电电力科学研究院 | Device for drying and upgrading lignite fluidized bed and technology of device |
-
2014
- 2014-04-09 CN CN201410140534.4A patent/CN103911198A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4508539A (en) * | 1982-03-04 | 1985-04-02 | Idemitsu Kosan Company Limited | Process for improving low quality coal |
| CN101168694A (en) * | 2006-10-27 | 2008-04-30 | 神华国际贸易有限责任公司 | Low metamorphic coal binderless hot pressing method and device |
| CN101285587A (en) * | 2008-03-28 | 2008-10-15 | 中国神华能源股份有限公司 | Low metamorphic grade coal drying and dewatering process |
| CN102965170A (en) * | 2012-11-30 | 2013-03-13 | 山东天力干燥股份有限公司 | Energy-saving environment-friendly lignite briquette preparation technology and system |
| CN103602360A (en) * | 2013-11-15 | 2014-02-26 | 华电电力科学研究院 | Device for drying and upgrading lignite fluidized bed and technology of device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546945A (en) * | 2016-01-07 | 2016-05-04 | 河北志诚物流有限公司 | Coal briquette drying technology and coal briquette air drying room |
| CN105546945B (en) * | 2016-01-07 | 2018-08-03 | 河北志诚物流有限公司 | A kind of moulded coal drying process and moulded coal hurricane drier |
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Application publication date: 20140709 |