CN220062522U - Device for adding fuel to cement kiln alternative fuel - Google Patents
Device for adding fuel to cement kiln alternative fuel Download PDFInfo
- Publication number
- CN220062522U CN220062522U CN202321001091.1U CN202321001091U CN220062522U CN 220062522 U CN220062522 U CN 220062522U CN 202321001091 U CN202321001091 U CN 202321001091U CN 220062522 U CN220062522 U CN 220062522U
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- conveying
- fixedly connected
- fuel
- cavity
- cement kiln
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- 239000000446 fuel Substances 0.000 title claims abstract description 63
- 239000004568 cement Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 52
- 238000003860 storage Methods 0.000 claims abstract description 34
- 238000005303 weighing Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 239000002440 industrial waste Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to the technical field of fuel adding in a substitute fuel decomposing furnace, and discloses a device for adding fuel in a cement kiln, which comprises a storage bin, wherein one side of the middle part of the upper end surface of the storage bin is fixedly connected with a feeding pipe, the upper end of the outer wall of the storage bin is fixedly connected with an air injection pipe, the lower end of the storage bin is fixedly connected with a material conveying box, a material conveying cavity is arranged in the material conveying box, one end of the material conveying cavity is provided with a servo motor, the output end of the servo motor is fixedly connected with a spiral weighing reamer, one side of the inner wall of the lower end of the material conveying cavity is provided with a weighing sensor, and one side of the lower end of the material conveying box is fixedly connected with a discharging scraper-trough conveyer. In the utility model, a material storage bin, a pneumatic conveying fan, a metering and weighing device and a conveying pipeline are arranged. The storage fuel is conveyed into the decomposing furnace by pneumatic conveying, scattered and mixed by the customized burner and fully contacted and mixed with the air entering the furnace through the tertiary air pipe, thereby achieving the purpose of fully burning the fuel.
Description
Technical Field
The utility model relates to the technical field of combustion in a substitute fuel decomposing furnace, in particular to a device for adding fuel of a cement kiln substitute fuel.
Background
At present, in the cement production process, the problems of diversification of raw fuel materials and complicacy of chemical components gradually occur due to resource limitation and low energy consumption of cement technology and exploration of new fuel to replace coal. The ash content and volatile components which affect the combustion of the fuel have large changes, and the combustion of the fuel in the decomposing furnace is adversely affected, so that the problems of high CO concentration of the system, high energy consumption, large increase of the consumption of the reducing agent and the like are caused. Accordingly, a person skilled in the art provides a means for fuel addition of alternative fuels to cement kilns to solve the problems set forth in the background art above.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a device for adding fuel for replacing fuel in a cement kiln, which is simple in equipment and facility, is formed by connecting a storage, a Roots blower, a spiral weighing scale and a plurality of meters of pipelines, is simple in construction, is constructed by relying on a platform, avoids lifting materials, is fully-automatic in control, is connected with a DCS (distributed control system) instead of a fuel adding device, and is added with PID (proportion integration differentiation) loop control. According to the pipeline pressure and the outlet temperature of the decomposing furnace, the dosage is automatically controlled, other industrial wastes are subjected to harmless treatment, and the waste gas is completely in accordance with the environmental protection emission standard after being calcined at a high temperature of 1200 ℃ of the decomposing furnace and the subsequent rotary kiln, so that secondary pollution is avoided.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the device for adding fuel of the cement kiln alternative fuel comprises a storage bin, wherein one side of the middle part of the upper end surface of the storage bin is fixedly connected with a feeding pipe, the upper end of the outer wall of the storage bin is fixedly connected with a gas injection pipe, the lower end of the storage bin is fixedly connected with a material conveying box, a material conveying cavity is arranged in the material conveying box, one end of the material conveying cavity is provided with a servo motor, the output end of the servo motor is fixedly connected with a spiral weighing reamer, one side of the inner wall of the lower end of the material conveying cavity is provided with a weighing sensor, one side of the lower end of the material conveying box is fixedly connected with a discharging chute, the lower end of the discharging chute is fixedly connected with a conveying pipeline, one end of the conveying pipeline is provided with a pneumatic conveying fan, and one end of the conveying pipeline far away from the pneumatic conveying fan is fixedly connected with a high-temperature fan pipeline;
through above-mentioned technical scheme, this equipment facility is simple, by a warehouse, a roots fan, a spiral weighing scale and a plurality of meters pipe connection form, and the construction is simple, and all equipment relies on the platform construction, has avoided the hoist and mount of material, and full automatization control replaces fuel to add the device and inserts the DCS system, increases PID return circuit control. According to the pipeline pressure and the outlet temperature of the decomposing furnace, the dosage is automatically controlled, other industrial wastes are subjected to harmless treatment, and the waste gas is completely in accordance with the environmental protection emission standard after being calcined at a high temperature of 1200 ℃ of the decomposing furnace and the subsequent rotary kiln, so that secondary pollution is avoided.
Further, the outer wall of the feeding pipe is provided with connecting threads;
through above-mentioned technical scheme, connect through the connection screw thread that sets up conveniently.
Further, one end of the gas injection pipe is fixedly connected with a connecting disc;
through above-mentioned technical scheme, the connection convenience is improved through the connection pad that sets up.
Further, a wind cavity is arranged in the high-temperature fan pipeline;
through the technical scheme, the materials are subjected to the next working procedure in the air cavity.
Further, a conveying cavity is formed in the conveying pipeline;
through above-mentioned technical scheme, the conveying chamber is used for carrying the material.
Further, the conveying cavity is communicated with the wind cavity;
through the technical scheme, materials in the conveying cavity are blown into the air cavity through the pneumatic conveying fan.
Further, a material containing cavity is arranged in the storage bin, and the material containing cavity is communicated with the material conveying cavity;
through above-mentioned technical scheme, the material in the flourishing material chamber falls into the defeated material chamber.
Further, the material conveying cavity is communicated with the conveying cavity;
through above-mentioned technical scheme, carry the chamber with the material and carry the material to the defeated material chamber in.
The utility model has the following beneficial effects:
1. the device for adding the fuel of the cement kiln alternative fuel provided by the utility model has simple equipment and facilities, is formed by connecting a storage, a Roots blower, a spiral weighing scale and a plurality of meters of pipelines, is simple in construction, is constructed by depending on a platform, avoids hoisting of materials, is fully-automatically controlled, is connected with a DCS system instead of the fuel adding device, and is added with PID loop control. According to the pipeline pressure and the outlet temperature of the decomposing furnace, the dosage is automatically controlled, other industrial wastes are subjected to harmless treatment, and the waste gas is completely in accordance with the environmental protection emission standard after being calcined at a high temperature of 1200 ℃ of the decomposing furnace and the subsequent rotary kiln, so that secondary pollution is avoided.
2. The utility model provides a device for adding fuel of cement kiln alternative fuel, which uses an original ash returning bin at the kiln tail as an alternative fuel storage bin, wherein a feeding pipeline is additionally arranged at the top of the upper part of the storage bin and extends to the bottom of the storage bin, a transport tank truck drives granular alternative fuel into a storage tank through the feeding pipeline, an original dust collecting device at the upper part of the storage bin is used for preventing dust pollution in the running process, a spiral weighing device is additionally arranged below the storage bin, the using amount is accurately controlled, a conveying pipeline is connected with a discharging chute and a decomposing furnace of the weighing device, and a Roots blower is additionally arranged at the tail part of the conveying pipeline for providing power for conveying. The alternative fuel is counted and recorded through the burner under the wind power transmission, the auxiliary air is added above the cone part of the storage bin, the auxiliary air is opened when the discharging is not smooth, the continuous and stable supply of the alternative fuel is ensured, the burner is manufactured by self, the scattering air duct is additionally arranged on the periphery of the alternative fuel transmission pipeline, the alternative fuel is fully scattered through the scattering air after being discharged out of the coal injection pipe and is uniformly distributed into the decomposing furnace, the auxiliary fuel is fully contacted with the air entering the furnace, the burning rate of the fuel is improved, and the CO concentration of the system is reduced.
Drawings
FIG. 1 is a schematic perspective view of a device for adding fuel to an alternative fuel for a cement kiln according to the present utility model;
FIG. 2 is a schematic diagram showing the internal structure of a device for adding fuel instead of fuel in a cement kiln according to the present utility model;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is a top view of an alternative fuel adding device for a cement kiln according to the present utility model.
Legend description:
1. pneumatic conveying fans; 2. a feed box; 3. a storage bin; 4. an air injection pipe; 5. a connecting disc; 6. a connecting thread; 7. a feeding pipe; 8. discharging a chute; 9. a delivery conduit; 10. a high temperature fan duct; 11. a servo motor; 12. a material containing cavity; 13. spiral weighing reamer; 14. a weighing sensor; 15. a material conveying cavity; 16. a delivery chamber; 17. and a wind cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a device that cement kiln substituted fuel's fuel added, including storage silo 3, the upper end middle part one side fixedly connected with pan feeding pipe 7 of storage silo 3, the outer wall upper end fixedly connected with gas injection pipe 4 of storage silo 3, the lower extreme fixedly connected with delivery box 2 of storage silo 3, the inside of delivery box 2 is provided with the delivery chamber 15, the one end of delivery chamber 15 is provided with servo motor 11, servo motor 11's output fixedly connected with spiral weighing reamer 13, the lower extreme inner wall one side of delivery chamber 15 is provided with weighing sensor 14, the lower extreme one side fixedly connected with unloading swift 8 of delivery box 2, the lower extreme fixedly connected with pipeline 9 of unloading swift 8, the one end of pipeline 9 is provided with pneumatic conveying fan 1, the one end fixedly connected with high temperature fan pipeline 10 of pipeline 9 keep away from pneumatic conveying fan 1, this equipment facility is simple, by a warehouse, a Roots blower, a spiral weighing scale and a plurality of meter pipeline connect and form, whole equipment relies on the platform construction, the hoist and mount of material has been avoided, substitute fuel adding device inserts DCS control loop, PID control system increases. According to the pipeline pressure and the outlet temperature of the decomposing furnace, the dosage is automatically controlled, other industrial wastes are subjected to harmless treatment, and the waste gas is completely in accordance with the environmental protection emission standard after being calcined at a high temperature of 1200 ℃ of the decomposing furnace and the subsequent rotary kiln, so that secondary pollution is avoided.
The outer wall of the feeding pipe 7 is provided with a connecting thread 6, connection is facilitated through the connecting thread 6, one end fixedly connected with connection disc 5 of the gas injection pipe 4, connection convenience is improved through the connection disc 5 that sets up, the inside of the high-temperature fan pipeline 10 is provided with an air cavity 17, the material carries out the next process in the air cavity 17, the inside of the conveying pipeline 9 is provided with a conveying cavity 16, the conveying cavity 16 is used for conveying the material, the conveying cavity 16 is communicated with the air cavity 17, the material in the conveying cavity 16 blows into the air cavity 17 through the pneumatic conveying fan 1, the inside of the storage bin 3 is provided with a material containing cavity 12, the material containing cavity 12 is communicated with a material conveying cavity 15, the material in the material containing cavity 12 falls into the material conveying cavity 15, the material conveying cavity 15 is communicated with the conveying cavity 16, and the conveying cavity 16 conveys the material into the material conveying cavity 15.
Working principle: when the intelligent control system is used, the intelligent control system is formed by connecting a storage, a Roots blower, a spiral weighing scale and a plurality of meters of pipelines, is simple in construction, is constructed by depending on a platform, avoids lifting materials, is fully-automatically controlled, is connected with a DCS system instead of a fuel adding device, and is added with PID loop control. According to pipeline pressure, the automatic control quantity of decomposing furnace exit temperature, other industrial waste's innocent treatment, through the high temperature calcination above 1200 ℃ of decomposing furnace and follow-up rotary kiln, exhaust emission accords with environmental protection emission standard completely, no secondary pollution produces, this equipment utilizes the former ash bin that returns of kiln tail as the alternative fuel warehouse, the upper portion top of warehouse installs the material loading pipeline additional, extend to the warehouse bottom, the transport tank car is in with the particulate alternative fuel drive storage tank through the material loading pipeline, the original dust arrester installation in warehouse upper portion, prevent to cause the raise dust pollution in the operation, install spiral weighing device additional under the warehouse, carry out accurate control to the quantity of use, conveyer pipeline 9 connects weighing device unloading swift current piece 8 and decomposing furnace, conveyer pipeline 9 afterbody installs the roots fan additional, provide power for the transportation. The alternative fuel is counted and recorded through the burner under the wind power transmission, the auxiliary air is added above the cone part of the storage bin, the auxiliary air is opened when the blanking is not smooth, the continuous and stable supply of the alternative fuel is ensured, the burner is manufactured by self, the scattering air duct is added at the periphery of the alternative fuel transmission pipeline 9, the alternative fuel is fully scattered through the scattering air after being discharged out of the coal injection pipe and is uniformly distributed into the decomposing furnace, the auxiliary fuel is fully contacted with the air entering the furnace, the burning rate of the fuel is improved, and the CO concentration of the system is reduced.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides a device of fuel addition of cement kiln alternative fuel, includes storage silo (3), its characterized in that: the automatic feeding device is characterized in that a feeding pipe (7) is fixedly connected to one side of the middle part of the upper end face of the storage bin (3), an air injection pipe (4) is fixedly connected to the upper end of the outer wall of the storage bin (3), a conveying box (2) is fixedly connected to the lower end of the storage bin (3), a conveying cavity (15) is formed in the conveying box (2), a servo motor (11) is arranged at one end of the conveying cavity (15), a spiral weighing reamer (13) is fixedly connected to the output end of the servo motor (11), a weighing sensor (14) is arranged on one side of the inner wall of the lower end of the conveying cavity (15), a discharging chute (8) is fixedly connected to one side of the lower end of the conveying box (2), a pneumatic conveying fan (1) is arranged at one end of the conveying pipeline (9), and a high-temperature fan pipeline (10) is fixedly connected to one end of the conveying pipeline (9) away from the pneumatic conveying fan (1).
2. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: the outer wall of the feeding pipe (7) is provided with connecting threads (6).
3. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: one end of the gas injection pipe (4) is fixedly connected with a connecting disc (5).
4. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: the high-temperature fan pipeline (10) is internally provided with a wind cavity (17).
5. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: the conveying pipeline (9) is internally provided with a conveying cavity (16).
6. A cement kiln alternate fuel fueling apparatus as recited in claim 5 wherein: the conveying cavity (16) is communicated with the air cavity (17).
7. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: the inside of storage silo (3) is provided with flourishing material chamber (12), flourishing material chamber (12) are linked together with defeated material chamber (15).
8. A cement kiln alternate fuel fueling apparatus as recited in claim 1 wherein: the material conveying cavity (15) is communicated with the conveying cavity (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001091.1U CN220062522U (en) | 2023-04-28 | 2023-04-28 | Device for adding fuel to cement kiln alternative fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001091.1U CN220062522U (en) | 2023-04-28 | 2023-04-28 | Device for adding fuel to cement kiln alternative fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220062522U true CN220062522U (en) | 2023-11-21 |
Family
ID=88760541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321001091.1U Active CN220062522U (en) | 2023-04-28 | 2023-04-28 | Device for adding fuel to cement kiln alternative fuel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220062522U (en) |
-
2023
- 2023-04-28 CN CN202321001091.1U patent/CN220062522U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |