SU672465A1 - Apparatus for preheating pulverulent material - Google Patents
Apparatus for preheating pulverulent materialInfo
- Publication number
- SU672465A1 SU672465A1 SU741989063A SU1989063A SU672465A1 SU 672465 A1 SU672465 A1 SU 672465A1 SU 741989063 A SU741989063 A SU 741989063A SU 1989063 A SU1989063 A SU 1989063A SU 672465 A1 SU672465 A1 SU 672465A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pulverulent material
- heat exchanger
- preheating
- gas
- upper stage
- Prior art date
Links
- 239000000463 material Substances 0.000 title description 14
- 239000004568 cement Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002912 waste gas 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 specially adapted for rotary-drum furnaces
- F27B7/2016—Arrangements of preheating devices for the charge
- F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Cyclones (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ПРЕДВАРИТЕЛЬНОГО НАГРЕВА МЕЛКОДИСПЕРСНОГО МАТЕРИАЛА(54) DEVICE FOR PRELIMINARY HEATING OF FITTING MATERIAL
Устройство работает следующим образом . Мелкодисперсный материал из циклона 11 через трубопроводы 5а и 4а подаетс соответственно в газоход 6 и верхнюю ступень 3 шахтного теплообменника. Отход щие газы вращающейс печи 9 привод т материал во взвещенное состо ние. При этом при возвратно поступательном перемещении и повороте вокруг собственной оси трубопровода 4а происходит равномерное распределение материала при входе в газоход 6. Ма териал выноситс отход щими газами в циклон 10, где происходит отделение газа от материала . При этом газ направл етс в ци,клон 11, а материал сползает по стенкам циклона в трубопроводы 4, 5 откуда поступает в верхнюю ступень щахтного теплообменника на более низкий уровень, где в расширенной части верхней ступени скорости значительно ниже, че.м в Газоходе.The device works as follows. Fine material from the cyclone 11 through the pipelines 5a and 4a is supplied respectively to the gas duct 6 and the upper stage 3 of the shaft heat exchanger. The waste gases of the rotary kiln 9 cause the material to be in a state of exploration. In this case, when the reciprocating movement and rotation around the axis of the pipeline 4a takes place, material is evenly distributed at the entrance to the gas flue 6. The material is carried by the exhaust gases into the cyclone 10, where gas is separated from the material. In this case, the gas is directed to qi, clone 11, and the material slides along the walls of the cyclone into pipelines 4, 5 from which it enters the upper stage of the heat exchanger to a lower level, where in the expanded part of the upper stage the speed is much lower than in the Duct.
Посредством трубопровода 4 материал также равномерно распредел етс по всему сечению верхней ступени 3 щахтного теплообменника . Благодар тому, что скорость движени газов в шахте ниже скорости витани частиц материала, последний опускаетс вниз до течки 8 и далее по течке 8 попадает во вращающуюс печь 9 на обжиг.Through conduit 4, the material is also uniformly distributed over the entire cross section of the upper stage 3 of the pit heat exchanger. Due to the fact that the speed of movement of gases in the mine is lower than the rate of movement of particles of material, the latter is lowered down to heat 8 and further along heat 8 enters the rotary kiln 9 for firing.
Равномерное распределение в газовом потоке мелкодисперсного материала, подаваемого в верхнюю, ступень 3 щахтного теплообменника посредством подвижных трубопроводов 4 и 4а, способствует интенсификации теплообмена между отход щими газами и материалом. Нар ду с повышением термической подготовки материала снижаетс температура газов, уход щих из теплообменника . Повышение термоподготовки материала способствует повыщению производительности вращающейс печи, а снижение температуры отход щих газов - снижению удельного расхода топлива.The uniform distribution in the gas flow of the fine material supplied to the top, stage 3 of the heat exchanger by means of moving pipes 4 and 4a, contributes to the intensification of heat exchange between the exhaust gases and the material. Along with an increase in the thermal preparation of the material, the temperature of the gases leaving the heat exchanger decreases. An increase in the thermal preparation of the material contributes to an increase in the productivity of the rotary kiln, and a decrease in the temperature of the exhaust gases reduces the specific fuel consumption.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD169281A DD107773A1 (en) | 1973-03-05 | 1973-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU672465A1 true SU672465A1 (en) | 1979-07-05 |
Family
ID=5490324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU741989063A SU672465A1 (en) | 1973-03-05 | 1974-01-16 | Apparatus for preheating pulverulent material |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS49119912A (en) |
| AU (1) | AU465273B2 (en) |
| BE (1) | BE811838A (en) |
| CS (1) | CS208151B2 (en) |
| DD (1) | DD107773A1 (en) |
| DE (1) | DE2340061B2 (en) |
| DK (1) | DK141765B (en) |
| ES (1) | ES421065A1 (en) |
| FR (1) | FR2221039A5 (en) |
| LU (1) | LU68893A1 (en) |
| OA (1) | OA04615A (en) |
| RO (1) | RO66559A (en) |
| SU (1) | SU672465A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2822215C2 (en) * | 1978-05-22 | 1987-04-16 | Krupp Polysius Ag, 4720 Beckum | Shaft-shaped counterflow heat exchanger |
-
1973
- 1973-03-05 DD DD169281A patent/DD107773A1/xx unknown
- 1973-08-08 DE DE19732340061 patent/DE2340061B2/en not_active Withdrawn
- 1973-08-23 CS CS735911A patent/CS208151B2/en unknown
- 1973-09-03 JP JP48098359A patent/JPS49119912A/ja active Pending
- 1973-09-12 AU AU60271/73A patent/AU465273B2/en not_active Expired
- 1973-11-23 FR FR7341820A patent/FR2221039A5/en not_active Expired
- 1973-11-29 DK DK643373AA patent/DK141765B/en not_active IP Right Cessation
- 1973-11-30 LU LU68893A patent/LU68893A1/xx unknown
- 1973-12-01 ES ES421065A patent/ES421065A1/en not_active Expired
-
1974
- 1974-01-16 SU SU741989063A patent/SU672465A1/en active
- 1974-02-27 RO RO7477847A patent/RO66559A/en unknown
- 1974-03-04 BE BE141615A patent/BE811838A/en unknown
- 1974-03-05 OA OA55140A patent/OA04615A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK141765B (en) | 1980-06-09 |
| DK141765C (en) | 1980-12-01 |
| OA04615A (en) | 1980-07-31 |
| DE2340061B2 (en) | 1976-12-30 |
| JPS49119912A (en) | 1974-11-15 |
| ES421065A1 (en) | 1976-04-01 |
| DE2340061A1 (en) | 1974-09-12 |
| AU465273B2 (en) | 1975-09-25 |
| DD107773A1 (en) | 1974-08-12 |
| LU68893A1 (en) | 1974-02-11 |
| CS208151B2 (en) | 1981-08-31 |
| BE811838A (en) | 1974-09-04 |
| FR2221039A5 (en) | 1974-10-04 |
| AU6027173A (en) | 1975-03-13 |
| RO66559A (en) | 1980-03-15 |
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