CN220649150U - Cement kiln with ultralow emission of nitrogen oxides - Google Patents
Cement kiln with ultralow emission of nitrogen oxides Download PDFInfo
- Publication number
- CN220649150U CN220649150U CN202322379792.5U CN202322379792U CN220649150U CN 220649150 U CN220649150 U CN 220649150U CN 202322379792 U CN202322379792 U CN 202322379792U CN 220649150 U CN220649150 U CN 220649150U
- Authority
- CN
- China
- Prior art keywords
- cement kiln
- feed inlet
- level
- pipeline
- overhaul
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000004568 cement Substances 0.000 title claims abstract description 36
- 238000000354 decomposition reaction Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Furnace Details (AREA)
Abstract
The utility model provides an ultralow emission cement kiln for nitrogen oxides, which comprises a primary decomposing furnace and a primary cyclone, wherein a feed inlet of the primary decomposing furnace is connected with a feed outlet pipeline of the primary cyclone. The arrangement of the overhaul pipe, the overhaul cover, the mounting seat and the vibrating motor is beneficial to reducing the degree of material bonding blockage in each pipeline of the cement kiln and is convenient for overhaul of the pipelines.
Description
Technical Field
The utility model belongs to the technical field of cement kilns, and particularly relates to a cement kiln with ultralow emission of nitrogen oxides.
Background
At present, cement kilns are mainly used for calcining cement clinker, the existing cement kilns comprise a cement kiln and a cooler arranged at one side of the cement kiln, and in order to reduce emission of nitrogen oxides, the cement kiln is usually provided with a decomposition furnace in front for pretreatment of materials, but when the cement kiln is used, after the temperature of the decomposition furnace is increased, the materials in a pipeline are easy to adhere and block.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the ultralow-emission cement kiln with nitrogen oxides, which reduces the degree of material bonding and blocking in each pipeline of the cement kiln and is convenient for overhauling the pipeline.
The utility model is realized by the following technical scheme:
the utility model provides an ultralow emission cement kiln of nitrogen oxide, including one-level decomposition stove and one-level whirlwind section of thick bamboo, the feed inlet of one-level decomposition stove and the discharge gate pipeline connection setting of one-level whirlwind section of thick bamboo, its characterized in that, one-level decomposition stove still cooperates and is provided with the second grade decomposition stove, second grade whirlwind section of thick bamboo and tertiary whirlwind section of thick bamboo, the feed inlet of one-level decomposition stove and the feed inlet pipeline connection setting of second grade whirlwind section of thick bamboo, the feed inlet of second grade decomposition stove is the feed inlet of three-level whirlwind section of thick bamboo, the discharge gate in the three-level whirlwind section of thick bamboo and the feed inlet pipeline connection setting of cement kiln, one side of cement kiln is provided with the cooler, overhaul pipe structure is all installed to every pipeline middle section.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the arrangement of the overhaul pipe, the overhaul cover, the mounting seat and the vibrating motor is beneficial to reducing the degree of material adhesion and blockage in each pipeline of the cement kiln and is convenient for overhaul of the pipelines.
2. In the utility model, the arrangement of the primary decomposing furnace and the secondary decomposing furnace is beneficial to pretreatment of materials entering the cement kiln.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the service pipe structure of the present utility model.
In the figure:
1. a first-stage decomposing furnace; 2. a secondary decomposing furnace; 3. a cement kiln; 31. a first-stage cyclone; 32. a secondary cyclone; 33. three-stage cyclone; 4. a cooling machine; 5. a service pipe structure; 51. a service pipe; 52. an access cover; 53. a mounting base; 54. a vibration motor.
Detailed Description
The utility model is specifically described below with reference to the accompanying drawings, as shown in the accompanying drawings 1 and 2, the ultralow emission cement kiln for nitrogen oxides comprises a primary decomposing furnace 1 and a primary cyclone 31, wherein a feed inlet of the primary decomposing furnace 1 is connected with a feed inlet pipeline of the primary cyclone 31, the primary decomposing furnace 1 is also provided with a secondary decomposing furnace 2 in a matched manner, a secondary cyclone 32 and a tertiary cyclone 33, the feed inlet pipeline of the primary decomposing furnace 1 is connected with the feed inlet pipeline of the secondary cyclone 32, the feed inlet pipeline of the secondary cyclone 32 is connected with the feed inlet of the secondary decomposing furnace 2, the feed inlet pipeline of the secondary decomposing furnace 2 is connected with the feed inlet pipeline of the tertiary cyclone 33, the feed outlet in the tertiary cyclone 33 is connected with the feed inlet pipeline of the cement kiln 3, one side of the cement kiln 3 is provided with a cooler 4, and each pipeline middle section is provided with an overhaul pipe structure 5.
In this embodiment, specifically, the maintenance tube structure 5 include maintenance pipe 51, the manhole upper portion flange joint of maintenance pipe 51 has access cover 52, open access cover 52 and be convenient for overhaul pipe 51, also can utilize high-pressure cleaning equipment to wash the pipeline, the lower part welding of maintenance pipe 51 has mount pad 53, the lower part bolted connection of mount pad 53 has vibrating motor 54, with vibrating motor 54 and external power source connection, vibrating motor 54 can vibrate maintenance pipe 51 when being in the open state, reduces the degree that the material bonds in each pipeline of cement kiln and blocks up.
In this embodiment, specifically, a plurality of the service pipes 51 are welded to the middle section of each pipeline.
In this embodiment, specifically, the secondary air pipeline of the cooler 4 is connected to the cement kiln 3, and the tertiary air of the cooler 4 is connected to the secondary decomposing furnace 2 through a pipeline.
Principle of operation
In the utility model, the materials enter the first-stage decomposing furnace 1 after being separated by the first-stage cyclone drum 31, the materials and the flue gas enter the second-stage cyclone drum 32, the materials separated by the second-stage cyclone drum 32 enter the second-stage decomposing furnace 2, the materials of the second-stage decomposing furnace 2 enter the third-stage cyclone drum 33 along with the flue gas, the materials are separated in the third-stage cyclone drum 33, the materials enter the cement kiln 3 for calcination, the materials are pretreated by the first-stage decomposing furnace 1 and the second-stage decomposing furnace 2, the overall thermal efficiency of the cement kiln 3 is improved, the occupied area of the cement kiln 3 is reduced, and the emission of nitrogen oxides in the combustion process is reduced.
By using the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical effects fall into the protection scope of the utility model.
Claims (4)
1. This ultralow emission cement kiln of nitrogen oxide, this ultralow emission cement kiln of nitrogen oxide includes one-level decomposition furnace (1) and one-level whirlwind section (31), the feed inlet of one-level decomposition furnace (1) and the discharge gate pipeline connection setting of one-level whirlwind section (31), a serial communication port, one-level decomposition furnace (1) still cooperates and is provided with second level decomposition furnace (2), second level whirlwind section (32) and tertiary whirlwind section (33), the feed inlet pipeline connection setting of the feed inlet of one-level decomposition furnace (1) and second level whirlwind section (32), the feed inlet of second level decomposition furnace (2) is connected to the feed inlet pipeline of second level whirlwind section (32), the feed inlet pipeline connection setting of third level whirlwind section (33) in the feed inlet pipeline connection of three-level whirlwind section (33), one side of cement kiln (3) is provided with cooler (4), pipe structure (5) are all installed in every pipeline middle section.
2. The cement kiln with ultralow emission of nitrogen oxides according to claim 1, wherein the overhaul pipe structure (5) comprises an overhaul pipe (51), an overhaul cover (52) is connected with the upper part of an overhaul hole of the overhaul pipe (51) in a flange mode, an installation seat (53) is welded at the lower part of the overhaul pipe (51), and a vibration motor (54) is connected with the lower part of the installation seat (53) in a bolt mode.
3. The ultralow emission cement kiln of nitrogen oxides according to claim 1, characterized in that a plurality of said service pipes (51) are welded respectively to the middle section of each pipeline.
4. The cement kiln with ultralow emission of nitrogen oxides according to claim 1, wherein a secondary air pipeline of the cooler (4) is connected with the cement kiln (3), and tertiary air of the cooler (4) is connected with a pipeline of the secondary decomposing furnace (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379792.5U CN220649150U (en) | 2023-09-04 | 2023-09-04 | Cement kiln with ultralow emission of nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379792.5U CN220649150U (en) | 2023-09-04 | 2023-09-04 | Cement kiln with ultralow emission of nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220649150U true CN220649150U (en) | 2024-03-22 |
Family
ID=90270530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322379792.5U Active CN220649150U (en) | 2023-09-04 | 2023-09-04 | Cement kiln with ultralow emission of nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220649150U (en) |
-
2023
- 2023-09-04 CN CN202322379792.5U patent/CN220649150U/en active Active
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