CN218270136U - Counter-flow rotary kiln feed inlet matched smoke return prevention device - Google Patents
Counter-flow rotary kiln feed inlet matched smoke return prevention device Download PDFInfo
- Publication number
- CN218270136U CN218270136U CN202222377822.4U CN202222377822U CN218270136U CN 218270136 U CN218270136 U CN 218270136U CN 202222377822 U CN202222377822 U CN 202222377822U CN 218270136 U CN218270136 U CN 218270136U
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- China
- Prior art keywords
- rotary kiln
- counter
- feed inlet
- elephant trunk
- pressure head
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- 239000000779 smoke Substances 0.000 title claims description 24
- 230000002265 prevention Effects 0.000 title description 6
- 241000406668 Loxodonta cyclotis Species 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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- Air Transport Of Granular Materials (AREA)
Abstract
The utility model discloses a supporting cigarette device that prevents returning of counter-current rotary kiln feed inlet, including high pressure head, low discharge type pressure head fan, the one end of pressure head fan has connected gradually wind pressure regulating valve and reducing festival through the air feed pipeline, the bottom of air feed pipeline is provided with evenly distributed's fixed bolster, and the other end of air feed pipeline is linked together with reinforced elephant trunk through a plurality of shower nozzle generators, and the top of reinforced elephant trunk is equipped with the weight flap valve that plays the lock wind and prevent returning the cigarette effect, the utility model discloses a pressure head fan continuously provides the compressed air and loops through wind pressure regulating valve and reducing festival, gets into reinforced elephant trunk and forms the air barrier of certain thickness in reinforced elephant trunk, prevents effectively that the flue gas in the rotary kiln from spilling over through reinforced elephant trunk.
Description
Technical Field
The utility model relates to a rotary kiln corollary equipment technical field, in particular to supporting smoke back prevention device of counter-flow rotary kiln feed inlet.
Background
The rotary kiln is a rotary cylinder device for carrying out mechanical, physical and chemical treatment on bulk or slurry materials, has the characteristics of simple operation, stable operation, strong raw material adaptability and the like, and is widely applied to the fields of steel, nonferrous metallurgy and the like. The rotary kiln can be divided into a counter-flow type and a forward-flow type according to the relative movement direction of the materials and the flue gas in the rotary kiln.
The reverse-flow rotary kiln generally adopts the mode feeding of reinforced elephant trunk in the design, sets up the dust collecting system that discharges fume at the feed end simultaneously, and the control feed end is little negative pressure during normal production, and the flue gas carries out centralized processing behind the system of discharging fume in the kiln, discharges after reaching standard. Under the condition of normal production, the charging chute is in micro negative pressure, so that the phenomenon of smoke return (smoke overflow) can not occur; however, in actual production, the phenomenon of smoke return often occurs during the material stopping and interrupting period of the rotary kiln, so that the negative pressure at the discharge end cannot be ensured, incomplete combustion and the phenomenon of reverse flapping of the kiln head occur, and the field operation environment is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a supporting smoke return prevention device of counter-flow rotary kiln feed inlet to solve and use traditional rotary kiln to stop the material and be interrupted the period, the cigarette phenomenon appears returning, leads to the unable assurance of discharge end negative pressure, appears burning incomplete simultaneously, the kiln head phenomenon of pounding conversely, seriously pollutes the shortcoming of site operation environment.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model provides a supporting cigarette device that prevents returning of counter-flow rotary kiln feed inlet, includes the pressure head fan, the one end of pressure head fan has connected gradually wind pressure regulating valve and reducing festival through the air feed pipeline, the bottom of air feed pipeline is provided with evenly distributed's fixed bolster, and the other end of air feed pipeline is linked together with reinforced elephant trunk through several shower nozzle generators.
Preferably, the spray head generator is provided with not less than 1 layer in the height direction of the feeding chute and not less than 1 layer in the circumferential direction of the feeding chute.
Preferably, the installation angle of the shower generator is 15 ° to 30 ° from the horizontal.
Preferably, the top of the feeding chute is provided with a heavy hammer flap valve 7 which plays roles of locking wind and preventing smoke from returning.
Preferably, the head pressure fan is a high-head, low-flow fan.
The utility model discloses a use does:
when the rotary kiln stops intermittently or the pressure at the tail of the kiln is unstable and smoke return occurs, compressed air provided by a pressure head fan passes through an air supply pipeline, an air pressure regulating valve, a reducer and a spray head generator, and then an air barrier with a certain thickness is continuously formed in a feeding chute, so that on one hand, overflowing smoke is restrained and sealed in the rotary kiln, and on the other hand, external air is prevented from leaking into the kiln to cause negative pressure fluctuation, and the smoke return is avoided; in addition, the heavy hammer flap valve is arranged on the feeding chute, the effect of preventing the smoke from overflowing and locking the air can be played to a certain degree, in addition, under the condition of normal feeding production of the rotary kiln, the smoke return prevention device can also play the effect of cleaning and sweeping the feeding chute, and therefore the blockage of the chute caused by the fact that materials are bonded and stacked in the chute is prevented.
The utility model has the advantages that:
(1) The middle pressure head fan continuously provides compressed air to sequentially pass through the air pressure regulating valve and the reducing joint, enter the feeding chute and form an air barrier with certain thickness in the feeding chute, thereby effectively preventing the smoke in the rotary kiln from overflowing through the feeding chute;
(2) The utility model discloses the air pressure size of the air pressure governing valve that well set up can be adjusted in the reinforced swift current pipe according to the actual production condition, and nimble adaptation is strong.
(3) The utility model discloses the reducing festival that well set up can effectively improve wind speed in the air feed pipeline, strengthens preventing returning cigarette efficiency.
(4) The utility model discloses well shower nozzle generator slope installation has increased the excessive resistance of flue gas in the reinforced elephant trunk, and is favorable to the compressed air in the air feed pipeline to sweep reinforced elephant trunk, prevents stifled pipe.
Drawings
FIG. 1 is a schematic view of the present invention;
in the figure: 1-pressure head fan, 2-air supply pipeline, 3-air pressure regulating valve, 4-reducing joint, 5-fixing support, 6-charging chute, 7-heavy hammer flap valve and 8-spray head generator.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings:
as shown in figure 1 a supporting cigarette device that prevents returning of counter-flow rotary kiln feed inlet, including high pressure head, low discharge type pressure head fan 1, the one end of pressure head fan 1 has connected gradually wind pressure regulating valve 3 and reducing festival 4 through air supply pipeline 2, the bottom of air supply pipeline 2 is provided with evenly distributed's fixed bolster 5, and the other end of air supply pipeline 2 is linked together through a plurality of shower nozzle generators 8 and reinforced elephant trunk 6, and the top of reinforced elephant trunk 6 is equipped with the weight flap valve 7 that plays the lock wind and prevent returning the cigarette effect.
The spray head generator 8 is provided with 2 layers in the height direction of the feeding chute 6, and the distance between every two layers is 500mm; 4 spray head generators 8 are uniformly distributed in the circumferential direction of the feeding chute 6, and the installation angle of each spray head generator 8 is 45 degrees to the horizontal line.
The utility model discloses a use:
when smoke return occurs during the material stopping intermittence period of the rotary kiln, compressed air provided by a pressure head fan 1 continuously forms an air barrier with a certain thickness in a feeding chute 6 after passing through an air supply pipeline 2, a wind pressure regulating valve 3, a reducing joint 4 and a spray head generator 8, and the excessive smoke is restrained and sealed in the rotary kiln, so that the smoke return is prevented, on one hand, the excessive smoke is restrained and sealed in the rotary kiln, on the other hand, external wind is prevented from leaking into the rotary kiln to cause negative pressure fluctuation, so that the smoke return is prevented; in addition, have arranged weight flap valve 7 on reinforced elephant trunk 6, also can play the effect that prevents the flue gas excessive to a certain extent, in addition, under the normal feeding production's of rotary kiln the condition, prevent returning the effect that the cigarette device still can play clean, sweep the reinforced elephant trunk to prevent that the material from causing the elephant trunk to block up after the bonding is piled up in the elephant trunk.
The utility model continuously provides compressed air by the pressure head fan to sequentially pass through the wind pressure regulating valve and the reducing joint, enter the feeding chute and form an air barrier with a certain thickness in the feeding chute, thereby effectively preventing the smoke in the rotary kiln from overflowing through the feeding chute; the air pressure regulating valve can regulate the air pressure in the feeding chute according to the actual production condition, and is flexible and strong in adaptability; the reducer section can effectively improve the wind speed in the air supply pipeline and enhance the smoke return prevention efficiency; the shower nozzle generator slope installation has increased the excessive resistance of flue gas in the reinforced elephant trunk, and is favorable to the compressed air in the air feed pipeline to sweep the reinforced elephant trunk, prevents stifled pipe.
The above are merely preferred examples of the present invention. It should be noted that other equivalent variations and modifications can be made by those skilled in the art based on the technical teaching provided by the present invention, as the common general knowledge in the mechanical field, and the protection scope of the present invention should be considered.
Claims (5)
1. The utility model provides a supporting cigarette device that prevents returning of counter-flow rotary kiln feed inlet, a serial communication port, including pressure head fan (1), the one end of pressure head fan (1) has connected gradually wind pressure regulating valve (3) and reducing festival (4) through air supply pipeline (2), the bottom of air supply pipeline (2) is provided with evenly distributed's fixed bolster (5), and the other end of air supply pipeline (2) is linked together through array shower nozzle generator (8) and reinforced elephant trunk (6).
2. The anti-smoke device matched with the feed inlet of the counter-flow rotary kiln as claimed in claim 1, is characterized in that: the spray head generator (8) is provided with not less than 1 layer in the height direction of the feeding chute (6) and not less than 1 layer in the circumferential direction of the feeding chute (6).
3. The anti-smoke device matched with the feed inlet of the counter-flow rotary kiln as claimed in claim 1 or 2, wherein: the installation angle of the spray head generator (8) is 15-30 degrees with the horizontal line.
4. The anti-smoke-return device matched with the feed inlet of the counter-flow rotary kiln as claimed in claim 3, is characterized in that: and a heavy hammer flap valve (7) with the functions of locking air and preventing smoke return is arranged at the top of the feeding chute (6).
5. The anti-smoke-return device matched with the feed inlet of the counter-flow rotary kiln as claimed in claim 4, wherein: the pressure head fan (1) is a high-pressure-head low-flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222377822.4U CN218270136U (en) | 2022-09-07 | 2022-09-07 | Counter-flow rotary kiln feed inlet matched smoke return prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222377822.4U CN218270136U (en) | 2022-09-07 | 2022-09-07 | Counter-flow rotary kiln feed inlet matched smoke return prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218270136U true CN218270136U (en) | 2023-01-10 |
Family
ID=84712200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222377822.4U Active CN218270136U (en) | 2022-09-07 | 2022-09-07 | Counter-flow rotary kiln feed inlet matched smoke return prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218270136U (en) |
-
2022
- 2022-09-07 CN CN202222377822.4U patent/CN218270136U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240415 Address after: 737199 No. 2 Jianshe Road, Jinchuan District, Jinchang City, Gansu Province (east of Beijing Road, west of Heya Road, south of Guiyang Road) Patentee after: Jinchuan Group Copper Gui Co.,Ltd. Country or region after: China Address before: 737100 Beijing Road, Jinchang City, Gansu Province Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China Patentee before: Jinchuan Group Copper Co.,Ltd. |