CN220038522U - Alternative fuel feeding device for cement kiln - Google Patents
Alternative fuel feeding device for cement kiln Download PDFInfo
- Publication number
- CN220038522U CN220038522U CN202321167420.XU CN202321167420U CN220038522U CN 220038522 U CN220038522 U CN 220038522U CN 202321167420 U CN202321167420 U CN 202321167420U CN 220038522 U CN220038522 U CN 220038522U
- Authority
- CN
- China
- Prior art keywords
- valve
- alternative fuel
- decomposing furnace
- bin
- cement kiln
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 239000004568 cement Substances 0.000 title claims abstract description 13
- 238000003860 storage Methods 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims description 4
- 239000010849 combustible waste Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 230000005465 channeling Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a substitute fuel feeding device for a cement kiln, which comprises a storage bin, a belt conveyor, a lifting machine, a steady flow bin, a spiral metering scale, a locking air valve, a high Wen Zha plate valve, a blanking pipe and a decomposing furnace; the alternative fuel enters the steady flow bin from the bin sequentially through the belt conveyor and the lifting machine, and the alternative fuel metered by the spiral metering scale sequentially enters the decomposing furnace through the tertiary air port of the decomposing furnace after passing through the air locking valve, the high-temperature gate valve and the discharging pipe, so that stable and controllable feeding quality is realized.
Description
Technical Field
The utility model belongs to the field of alternative fuel feeding devices, and particularly relates to an alternative fuel feeding device for a cement kiln.
Background
Alternative fuels can enter the cement production process at different feed points, the most common at present being: a kiln head main burner and a kiln tail decomposing furnace. Because the source of the alternative fuel is complex, the refractory materials are increased in the application process, so that the adding position of the alternative fuel gradually moves from the main burner of the rotary kiln to the decomposing furnace. Because alternative fuels differ in nature from conventional fuels such as coal or coke, their use requires specialized measures and comprehensive detection and control mechanisms. The waste used in the main burner of kiln head is generally waste substitution fuel with high heat value, low moisture and small particles, and is usually matched with coal dust, and the addition amount is strictly limited by flame temperature requirement.
The use of alternative fuels in the decomposing furnace does not present clinker quality problems, as it has little or no effect on the rotary kiln firing belt. The kiln temperature in the kiln tail smoke chamber is difficult to control and is easy to crust to cause blockage, and the application of the alternative fuels in the decomposing furnace generally does not have additional requirements on the residence time of the airflow of the decomposing furnace, so that the waste disposal and utilization can be satisfied by adopting a normal operation mode. The problem to be solved when the alternative fuel enters the decomposing furnace at present is how to perform feeding rapidly and stably.
Disclosure of Invention
In order to realize stable and controllable feeding quality, the utility model provides an alternative fuel feeding device for a cement kiln.
The implementation mode of the utility model is as follows: the utility model provides a cement kiln is with alternative fuel feed arrangement, includes feed bin, belt conveyor, lifting machine, stationary flow storehouse, spiral metering balance, turns over board air lock valve, high Wen Zha plate valve and decomposing furnace; the belt conveyor is respectively connected with the storage bin and the elevator and is used for conveying the substitute fuel in the storage bin to the elevator; the lifting machine is used for conveying the alternative fuel to the steady flow bin; the spiral metering scale is connected with the steady flow bin and the turning plate air locking valve through a conveying belt respectively; the turning plate air locking valve is connected to the high Wen Zha plate valve through a pipeline, and the high-temperature gate valve is connected to a tertiary air port of the decomposing furnace through a pipeline; the flap air locking valve comprises an upper layer valve and a lower layer valve, the upper layer valve and the lower layer valve of the flap air locking valve can be automatically opened under the gravity action of the alternative fuel, and when the feeding is stopped, the upper layer valve and the lower layer valve are automatically reset and closed. In the device, the storage bin is used for storing the alternative fuel, and the belt conveyor and the lifting machine are used for conveying the alternative fuel to the steady flow bin; the spiral metering scale is used for weighing the alternative fuel, and the alternative fuel quantitatively weighed by the spiral metering scale is transmitted to the turning plate air locking valve through the conveying belt; the upper valve and the lower valve are successively and automatically reset and closed under the control of a counterweight lever system when the feeding is stopped, and a layer of valve plate is always in a closed and blocked state by utilizing the upper valve and the lower valve to switch in different time, so that air channeling is prevented, and stable material conveying is completed. When the feeding is stopped, the valve of the high-temperature gate valve is in a fully closed state, so that the high-temperature air flow in the decomposing furnace can be prevented from entering the turning plate air locking valve through the tertiary air port and the pipeline, and the problems that the high temperature affects the use of equipment such as the turning plate air locking valve and the like, and the feeding channel is blocked by melting and bonding of alternative fuels are prevented.
Further, the alternative fuel is prepared by crushing, screening and sorting the combustible waste.
Furthermore, the spiral metering balance comprises an intelligent control system, and dynamic continuous quantitative feeding can be realized.
Furthermore, the decomposing furnace is in a negative pressure state, and under the negative pressure state, the alternative fuel more conveniently enters the decomposing furnace.
The utility model has the following beneficial effects: (1) Through the design of the upper and lower double-layer valves of the flap lock air valve, a layer of valve plate is always in a closed and off state in the middle of the equipment by utilizing the switch of the upper and lower valves at different times, so that air channeling is prevented, and stable conveying of materials is completed. (2) When the feeding is stopped, the valve of the high-temperature gate valve is in a fully closed state, so that the high-temperature air flow in the decomposing furnace can be prevented from entering the turning plate air locking valve through the tertiary air port and the pipeline, and the problems that the high temperature affects the use of equipment such as the turning plate air locking valve and the like, and the feeding channel is blocked by melting and bonding of alternative fuels are prevented.
Drawings
FIG. 1 is a block diagram of an alternative fuel feeder for a cement kiln according to the present utility model.
Wherein, 1, a stock bin; 2. a belt conveyor; 3. a hoist; 4. a steady flow bin; 5. a spiral metering scale; 6. turning plate air locking valve; 7. a high Wen Zha plate valve; 8. a tertiary air port; 9. a decomposing furnace.
Detailed Description
The following describes the embodiment of the present utility model in detail with reference to fig. 1, but it should be understood that the scope of the present utility model is not limited by the embodiment.
As shown in fig. 1, the alternative fuel feeding device for the cement kiln comprises a storage bin 1, a belt conveyor 2, a lifting machine 3, a steady flow bin 4, a spiral metering scale 5, a turning plate air locking valve 6, a high Wen Zha plate valve 7 and a decomposing furnace 9; the belt conveyor 2 is respectively connected with the storage bin 1 and the lifting machine 3 and is used for conveying the alternative fuel in the storage bin 1 to the lifting machine 3; the lifting machine 3 is used for conveying the alternative fuel to the steady flow bin 4; the spiral metering scale 5 is connected with the steady flow bin 4 and the turning plate air locking valve 6 through conveying belts respectively; the flap lock air valve 6 is connected to the high-temperature gate valve 7 through a pipeline, and the Gao Wenzha gate valve 7 is connected to a tertiary air port 8 of the decomposing furnace 9 through a pipeline; the turning plate air locking valve 6 comprises an upper layer valve and a lower layer valve, the upper layer valve and the lower layer valve of the turning plate air locking valve 6 can be automatically opened under the gravity action of the alternative fuel, and when the feeding is stopped, the upper layer valve and the lower layer valve are automatically reset and closed. In the device, the storage bin 1 is used for storing the alternative fuel, and the belt conveyor 2 and the lifting machine 3 are used for conveying the alternative fuel to the steady flow bin 4; the spiral metering scale 5 is used for weighing the alternative fuel, and the alternative fuel quantitatively weighed by the spiral metering scale 5 is transmitted to the turning plate air locking valve 6 through the conveying belt; the upper and lower valves are automatically opened under the gravity action of the alternative fuel respectively when the alternative fuel is fed, the alternative fuel enters the decomposing furnace 9 from the tertiary air port 8 after entering the high-temperature gate valve 7 through the pipeline, and the upper and lower valves are automatically reset and closed successively when the feeding is stopped, and a layer of valve plate is always in a closed and separated state between the equipment by utilizing the upper and lower valves at different time switches so as to prevent air channeling, thereby finishing stable material conveying. When the feeding is stopped, the valve of the high Wen Zha plate valve 7 is in a fully closed state, so that the high-temperature air flow in the decomposing furnace 9 can be prevented from entering the turning plate air locking valve 6 through the tertiary air port 8 and the pipeline, and the problems that the high temperature affects the use of the turning plate air locking valve 6 and other equipment and the feeding channel is blocked by melting and bonding of alternative fuel are prevented.
Further, the alternative fuel is prepared by crushing, screening and sorting the combustible waste.
Further, the spiral metering scale 5 comprises an intelligent control system, and dynamic continuous quantitative feeding can be realized.
Further, the decomposing furnace 9 is in a negative pressure state, and the substitute fuel more conveniently enters the decomposing furnace 9 in the negative pressure state.
Claims (4)
1. The alternative fuel feeding device for the cement kiln is characterized by comprising a storage bin, a belt conveyor, a lifting machine, a steady flow bin, a spiral metering scale, a turning plate air locking valve, a high Wen Zha plate valve and a decomposing furnace; the belt conveyor is respectively connected with the storage bin and the elevator and is used for conveying the substitute fuel in the storage bin to the elevator; the lifting machine is used for conveying the alternative fuel to the steady flow bin; the spiral metering scale is connected with the steady flow bin and the turning plate air locking valve through conveying belts respectively; the turning plate air locking valve is connected to the high Wen Zha plate valve through a pipeline, and the high-temperature gate valve is connected to a tertiary air port of the decomposing furnace through a pipeline; the flap air locking valve comprises an upper layer valve and a lower layer valve, the upper layer valve and the lower layer valve of the flap air locking valve can be automatically opened under the gravity action of the alternative fuel, and when the feeding is stopped, the upper layer valve and the lower layer valve are automatically reset and closed.
2. The alternative fuel feeding device for the cement kiln according to claim 1, wherein the alternative fuel is prepared by crushing, screening and sorting combustible wastes.
3. The alternative fuel feeding device for a cement kiln according to claim 1, wherein the spiral metering scale comprises an intelligent control system, and dynamic continuous quantitative feeding can be realized.
4. The alternative fuel feeding device for a cement kiln according to claim 1, wherein the decomposing furnace is in a negative pressure state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321167420.XU CN220038522U (en) | 2023-05-16 | 2023-05-16 | Alternative fuel feeding device for cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321167420.XU CN220038522U (en) | 2023-05-16 | 2023-05-16 | Alternative fuel feeding device for cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220038522U true CN220038522U (en) | 2023-11-17 |
Family
ID=88723595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321167420.XU Active CN220038522U (en) | 2023-05-16 | 2023-05-16 | Alternative fuel feeding device for cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220038522U (en) |
-
2023
- 2023-05-16 CN CN202321167420.XU patent/CN220038522U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105773835B (en) | Ceramic raw material mix grinding centralized system is for Processes and apparatus | |
| CN206746767U (en) | A kind of desulfurization agstone preparation system | |
| CN102849967B (en) | Double-O-shaped lime kiln | |
| CN103864325B (en) | A kind of production system of suspended state calcining coal gangue | |
| CN112301213B (en) | Manganese ore roasting rotary kiln system | |
| CN105817136A (en) | Desulphurization system in circulating fluidized bed boiler | |
| CN220038522U (en) | Alternative fuel feeding device for cement kiln | |
| CN203695172U (en) | Limestone pulverizing system | |
| KR101054472B1 (en) | Apparatus for manufacturing molten iron for drying and transporting iron ore and auxiliary materials | |
| CN115746932A (en) | Lignite drying, quality improving and powder making production process | |
| CN117209172A (en) | Production system and production method of full solid waste cementing material | |
| CN202037125U (en) | Online pulverized coal refining separation device | |
| CN210148351U (en) | Fly ash ceramsite manufacturing production line | |
| CN101664707A (en) | Slag micropowder superfine open-circuit production line | |
| CN110589828B (en) | Activation measurement charging system | |
| CN103968396A (en) | Rotary kiln system capable of incinerating junked tire | |
| CN109293259A (en) | A kind of cement kiln synergic processing high-efficiency pulverized coal boiler fly ash technique | |
| CN103017182A (en) | System and method for efficiently and economically processing coal ash and bottom slag of coal-fired units of power plants | |
| CN212511205U (en) | Biomass straw combustion system for cement kiln | |
| CN217577496U (en) | Raw material homogenization system | |
| CN217560330U (en) | Production line equipment for calcining magnesia sand by adopting suspension preheating rotary kiln one-step method | |
| CN211895190U (en) | Slack coal bin processing system | |
| CN217154188U (en) | Useless incineration disposal system of danger | |
| CN205442076U (en) | Sludge conveying system | |
| CN202048581U (en) | Fuel matching device for stable operation of fluidized mix combustion furnace of three wastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |