CA1127463A - Combination of a coal grinding drying process and a coal heating process with increased heat recovery - Google Patents
Combination of a coal grinding drying process and a coal heating process with increased heat recoveryInfo
- Publication number
- CA1127463A CA1127463A CA353,351A CA353351A CA1127463A CA 1127463 A CA1127463 A CA 1127463A CA 353351 A CA353351 A CA 353351A CA 1127463 A CA1127463 A CA 1127463A
- Authority
- CA
- Canada
- Prior art keywords
- coal
- fuel
- air
- dust
- mill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003245 coal Substances 0.000 title claims abstract description 44
- 238000001035 drying Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 title claims abstract description 10
- 238000000227 grinding Methods 0.000 title abstract description 19
- 238000011084 recovery Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000002817 coal dust Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 239000004449 solid propellant Substances 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 11
- 239000000428 dust Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000004880 explosion Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 238000012432 intermediate storage Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004952 furnace firing Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
- F27B7/383—Cooling devices for the charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
- F23K1/04—Heating fuel prior to delivery to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Disintegrating Or Milling (AREA)
- Air Supply (AREA)
- Solid-Fuel Combustion (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Processing Of Solid Wastes (AREA)
- Drying Of Solid Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2922904A DE2922904C2 (de) | 1979-06-06 | 1979-06-06 | Staubfeuerung für einen Prozeßofen, insbesondere Ofen zur Herstellung von Zementklinker |
| DEP2922904.7 | 1979-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1127463A true CA1127463A (en) | 1982-07-13 |
Family
ID=6072584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA353,351A Expired CA1127463A (en) | 1979-06-06 | 1980-06-04 | Combination of a coal grinding drying process and a coal heating process with increased heat recovery |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS581324B2 (sv) |
| CA (1) | CA1127463A (sv) |
| CH (1) | CH642733A5 (sv) |
| DE (1) | DE2922904C2 (sv) |
| DK (1) | DK148454C (sv) |
| FR (1) | FR2458753A1 (sv) |
| GB (1) | GB2050584B (sv) |
| IT (1) | IT1140660B (sv) |
| SE (1) | SE443040B (sv) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673556A (en) * | 1979-11-22 | 1981-06-18 | Ube Industries | Coal pulverizer utilizing kiln exhaust gas |
| US4500286A (en) * | 1982-07-29 | 1985-02-19 | Nippon Furnace Kogyo Co., Ltd. | Primary air supply unit of rotary kiln |
| JPS61118414U (sv) * | 1985-01-11 | 1986-07-26 | ||
| GB2177189B (en) * | 1985-06-28 | 1989-04-26 | Smidth & Co As F L | Method and cooler for cooling granular material |
| JPH0353110U (sv) * | 1989-09-28 | 1991-05-23 | ||
| DE102006012301A1 (de) * | 2006-03-15 | 2007-09-20 | Cemag-Anlagenbau-Dessau Gmbh | Herstellung von Zementklinker |
| CN109967217B (zh) * | 2019-03-28 | 2024-06-21 | 中国华能集团清洁能源技术研究院有限公司 | 一种用于中速磨煤机的轴向分离器及其分离方法 |
| CN113200694A (zh) * | 2021-05-26 | 2021-08-03 | 河南省豫鹤同力水泥有限公司 | 降低煤质贫化和熟料热耗、提高煤粉热值的生产工艺 |
-
1979
- 1979-06-06 DE DE2922904A patent/DE2922904C2/de not_active Expired
-
1980
- 1980-02-19 FR FR8003567A patent/FR2458753A1/fr active Granted
- 1980-02-20 IT IT20051/80A patent/IT1140660B/it active
- 1980-02-28 JP JP55025180A patent/JPS581324B2/ja not_active Expired
- 1980-03-14 GB GB8008812A patent/GB2050584B/en not_active Expired
- 1980-04-14 CH CH283980A patent/CH642733A5/de not_active IP Right Cessation
- 1980-05-08 SE SE8003445A patent/SE443040B/sv not_active IP Right Cessation
- 1980-06-04 DK DK240380A patent/DK148454C/da not_active IP Right Cessation
- 1980-06-04 CA CA353,351A patent/CA1127463A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2050584B (en) | 1983-11-16 |
| DK240380A (da) | 1980-12-07 |
| CH642733A5 (de) | 1984-04-30 |
| SE443040B (sv) | 1986-02-10 |
| SE8003445L (sv) | 1980-12-07 |
| FR2458753A1 (fr) | 1981-01-02 |
| JPS581324B2 (ja) | 1983-01-11 |
| DE2922904A1 (de) | 1980-12-11 |
| IT8020051A0 (it) | 1980-02-20 |
| IT1140660B (it) | 1986-10-01 |
| DK148454C (da) | 1985-11-25 |
| DK148454B (da) | 1985-07-08 |
| GB2050584A (en) | 1981-01-07 |
| JPS55162528A (en) | 1980-12-17 |
| FR2458753B1 (sv) | 1984-11-16 |
| DE2922904C2 (de) | 1983-09-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |