CN202080890U - Kiln-feeding raw material and high-temperature flue gas heat-exchanging device for acid-production-from-gypsum rotary roasting kiln - Google Patents
Kiln-feeding raw material and high-temperature flue gas heat-exchanging device for acid-production-from-gypsum rotary roasting kiln Download PDFInfo
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- CN202080890U CN202080890U CN2011201905455U CN201120190545U CN202080890U CN 202080890 U CN202080890 U CN 202080890U CN 2011201905455 U CN2011201905455 U CN 2011201905455U CN 201120190545 U CN201120190545 U CN 201120190545U CN 202080890 U CN202080890 U CN 202080890U
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- preheater
- kiln
- heat
- cyclone preheater
- cyclone
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- 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
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Abstract
The utility model discloses a kiln-feeding raw material and high-temperature flue gas heat-exchanging device for an acid-production-from-gypsum rotary roasting kiln and aims to solve the problems that the flue-gas temperature of an acid-production-from-gypsum co-producing cement rotary roasting kiln system is high and the materials are easy to block. The kiln-feeding raw material and high-temperature smoke gas heat-exchanging device comprises a flat cylinder preheater, a vertical cylinder preheater, a quartus cyclone preheater, a quartus heat-exchange air pipe, a tertiary cyclone preheater, a tertiary heat-exchange air pipe and a secondary cyclone preheater, wherein the flat cylinder preheater is connected with the vertical cylinder preheater, the vertical cylinder preheater is connected with the quartus cyclone preheater, the quartus cyclone preheater is connected with the tertiary cyclone preheater through the quartus heat-exchange air pipe, and the tertiary cyclone preheater is connected with the secondary cyclone preheater through the tertiary heat-exchange air pipe. The kiln-feeding raw material and high-temperature smoke gas heat-exchanging device has the double functions of heat-exchange energy conservation and dust removal, has the characteristics of strong heat-exchange capability, good dust-exhausting capability and no possibility of material blockage, and is a preferred energy-conserving and environment-protective device of an acid-production-from-gypsum rotary roasting kiln system.
Description
Technical field
The utility model belongs to the energy-saving and environmental protection field, and particularly a kind of gypsum relieving haperacidity calcination rotary kiln high-temperature flue gas heat exchange is lowered the temperature and gone into the device that the heat exchange of kiln raw material heats up.
Background technology
At present, the many Wingdale production cement clinker kilns that directly adopt of gypsum relieving haperacidity calcination rotary kiln decompose outward and preheating cement produced with the dry method technology both at home and abroad, have following defective:
The first, because the gypsum fusing point is lower, in pre-heating system, be easy to generate serious technology accidents such as stammerer, obstruction, cause a lot of production lines to be difficult to normal operation;
The second, the proportion of gypsum is lighter, is difficult for deposition in preheater, is not easy to realize heat exchange in pre-heating system, has increased pre-heating system material cycling rate.
The utility model content
The purpose of this utility model provides a kind of gypsum relieving haperacidity calcination rotary kiln and advances kiln raw material and high-temperature flue gas heat-exchanger rig, to solve gypsum system sulfuric acid by-product cement calcination rotary kiln system flue-gas temperature height, the easy blocking problem of material.
The utility model comprises flat cylinder pre-heating, shaft preheater, Category Four cyclone preheater, level Four heat exchange airduct, three grades of cyclone preheaters, three grades of heat exchange airducts, secondary cyclone preheater, flat cylinder pre-heating links to each other with shaft preheater, shaft preheater links to each other with the Category Four cyclone preheater, the Category Four cyclone preheater links to each other with three grades of cyclone preheaters by level Four heat exchange airduct, and three grades of cyclone preheaters link to each other with the secondary cyclone preheater by three grades of heat exchange airducts.
The high temperature kiln exit gas that rotary kiln came out during the utility model used enters flat cylinder pre-heating, shaft preheater, Category Four cyclone preheater, level Four heat exchange airduct, three grades of cyclone preheaters, three grades of heat exchange airducts, secondary cyclone preheater, connecting tube, one-level whirlwind preheating fly-ash separator successively, and temperature is progressively reduced to 260 ℃～330 ℃ discharges from 800 ℃～900 ℃.And the material temperature of advancing kiln is promoted to 800 ℃～900 ℃, reaches UTILIZATION OF VESIDUAL HEAT IN, purpose of energy saving.
The utlity model has the energy-conservation and dedusting dual-use function of heat exchange, exchange capability of heat is strong, and dust collection capacity is strong, and the nonclogging characteristics of material are the first-selected energy-saving environmental protection devices of gypsum relieving haperacidity calcination rotary kiln system.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model comprises flat cylinder pre-heating 1, shaft preheater 2, Category Four cyclone preheater 3, level Four heat exchange airduct 4, three grades of cyclone preheaters 5, three grades of heat exchange airducts 6, secondary cyclone preheater 7, flat cylinder pre-heating 1 links to each other with shaft preheater 2, shaft preheater 2 links to each other with Category Four cyclone preheater 3, Category Four cyclone preheater 3 links to each other with three grades of cyclone preheaters 5 by level Four heat exchange airduct 4, and three grades of cyclone preheaters 5 link to each other with secondary cyclone preheater 7 by three grades of heat exchange airducts 6.
For better dedusting, secondary cyclone preheater 7 links to each other with one-level whirlwind preheating fly-ash separator 9 by connecting tube 8.
One-level whirlwind preheating fly-ash separator 9 is two in the utility model embodiment.
In the use, it is as follows that flue gas moves towards: the high temperature kiln exit gas that rotary kiln comes out enters flat cylinder pre-heating 1, shaft preheater 2, Category Four cyclone preheater 3, level Four heat exchange airduct 4, three grades of cyclone preheaters 5, three grades of heat exchange airducts 6, secondary cyclone preheater 7, connecting tube 8, one-level whirlwind preheating fly-ash separator 9 successively, and temperature is progressively reduced to 260 ℃～330 ℃ discharges from 800 ℃～900 ℃.
In the use, it is as follows that material moves towards: advance the kiln material and directly enter from three grades of heat exchange airducts 6, in three grades of heat exchange airduct 6 pipes, broken up up flue gas stream and material heat exchange by the scattering plate special part.Material enters secondary cyclone preheater 7 with air-flow, and material and flue gas in secondary cyclone preheater 7 be because the whirlwind centrifugation realizes separating, and flue gas enters one-level whirlwind preheating fly-ash separator 9 by connecting tube 8, further dedusting collection material.The material that 9 dedustings of one-level whirlwind preheating fly-ash separator are collected enters three grades of heat exchange airducts 6 through one-level whirlwind preheating fly-ash separator 9 tremie pipes, if this circulation.Discharged from one-level whirlwind preheating fly-ash separator 9 by the flue gas after effective dedusting, enter subsequent processing.The material that goes out from secondary cyclone preheater 7 interior cyclone centrifugal separation enters level Four heat transfer tube 4 by secondary cyclone preheater 7 tremie pipes, in level Four heat transfer tube 4, is broken up up flue gas stream and material heat exchange by the scattering plate special part.Material enters three grades of cyclone preheaters 5 with air-flow, material and flue gas in three grades of cyclone preheaters 5 since the whirlwind centrifugation realize separating, flue gas enters three grades of heat exchange airducts 6, material enters shaft preheater 2 by three grades of cyclone preheater 5 tremie pipes, break up up flue gas stream and material heat exchange by scattering plate special part in the shaft preheater.Material enters Category Four cyclone preheater 3 with air-flow, material and flue gas in Category Four cyclone preheater 3 since the whirlwind centrifugation realize separating, flue gas enters level Four heat exchange airduct 4, material enters flat cylinder pre-heating 1 by Category Four cyclone preheater 3 tremie pipes, flat cylinder pre-heating 1 directly is connected with rotary kiln, and the material that is preheated has just entered rotary kiln, and making into, the material temperature of kiln is promoted to 800 ℃～900 ℃, reach UTILIZATION OF VESIDUAL HEAT IN, purpose of energy saving.
The utility model is in the supporting use of the application unit's 50,000 tons of gypsum relieving haperacidity project φ, 3 * 48m calcination rotary kiln, and the production run parameter sees attached list 1.Can find out that by the temperature data in the subordinate list this device has reached conscientiously reduces to 260 ℃～330 ℃ discharges with 800 ℃～900 ℃ rotary kiln high-temperature flue gas, and make into that the kiln temperature of charge has risen to 800 ℃～900 ℃ energy-conservation purpose.
Claims (3)
1. a gypsum relieving haperacidity calcination rotary kiln advances kiln raw material and high-temperature flue gas heat-exchanger rig, it is characterized in that: it comprises flat cylinder pre-heating (1), shaft preheater (2), Category Four cyclone preheater (3), level Four heat exchange airduct (4), three grades of cyclone preheaters (5), three grades of heat exchange airducts (6), secondary cyclone preheater (7), flat cylinder pre-heating (1) links to each other with shaft preheater (2), shaft preheater (2) links to each other with Category Four cyclone preheater (3), Category Four cyclone preheater (3) links to each other with three grades of cyclone preheaters (5) by level Four heat exchange airduct (4), and three grades of cyclone preheaters (5) link to each other with secondary cyclone preheater (7) by three grades of heat exchange airducts (6).
2. gypsum relieving haperacidity calcination rotary kiln according to claim 1 advances kiln raw material and high-temperature flue gas heat-exchanger rig, it is characterized in that: described secondary cyclone preheater (7) links to each other with one-level whirlwind preheating fly-ash separator (9) by connecting tube (8).
3. gypsum relieving haperacidity calcination rotary kiln according to claim 2 advances kiln raw material and high-temperature flue gas heat-exchanger rig, it is characterized in that: described one-level whirlwind preheating fly-ash separator (9) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201905455U CN202080890U (en) | 2011-06-08 | 2011-06-08 | Kiln-feeding raw material and high-temperature flue gas heat-exchanging device for acid-production-from-gypsum rotary roasting kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201905455U CN202080890U (en) | 2011-06-08 | 2011-06-08 | Kiln-feeding raw material and high-temperature flue gas heat-exchanging device for acid-production-from-gypsum rotary roasting kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202080890U true CN202080890U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201905455U Expired - Lifetime CN202080890U (en) | 2011-06-08 | 2011-06-08 | Kiln-feeding raw material and high-temperature flue gas heat-exchanging device for acid-production-from-gypsum rotary roasting kiln |
Country Status (1)
| Country | Link |
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| CN (1) | CN202080890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786035A (en) * | 2012-08-14 | 2012-11-21 | 成都建筑材料工业设计研究院有限公司 | Calcination method and device for producing cement and co-producing sulfuric acid by using industrial byproduct gypsum |
| CN102815674A (en) * | 2011-06-08 | 2012-12-12 | 甘肃锦世化工有限责任公司 | Heat-exchanging device for kiln-feeding raw material and high-temperature flue gas of roasting rotary kiln for producing acid from gypsum |
-
2011
- 2011-06-08 CN CN2011201905455U patent/CN202080890U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815674A (en) * | 2011-06-08 | 2012-12-12 | 甘肃锦世化工有限责任公司 | Heat-exchanging device for kiln-feeding raw material and high-temperature flue gas of roasting rotary kiln for producing acid from gypsum |
| CN102786035A (en) * | 2012-08-14 | 2012-11-21 | 成都建筑材料工业设计研究院有限公司 | Calcination method and device for producing cement and co-producing sulfuric acid by using industrial byproduct gypsum |
| CN102786035B (en) * | 2012-08-14 | 2014-04-09 | 成都建筑材料工业设计研究院有限公司 | Calcination method and device for producing cement and co-producing sulfuric acid by using industrial byproduct gypsum |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |