CN210663961U - Feed back control system applied to waste heat power generation kiln tail boiler - Google Patents
Feed back control system applied to waste heat power generation kiln tail boiler Download PDFInfo
- Publication number
- CN210663961U CN210663961U CN201920991128.7U CN201920991128U CN210663961U CN 210663961 U CN210663961 U CN 210663961U CN 201920991128 U CN201920991128 U CN 201920991128U CN 210663961 U CN210663961 U CN 210663961U
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- Prior art keywords
- ash
- boiler
- kiln tail
- discharge pipe
- bucket
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- Expired - Fee Related
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- 239000002918 waste heat Substances 0.000 title claims abstract description 24
- 238000010248 power generation Methods 0.000 title claims abstract description 21
- 230000008021 deposition Effects 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 29
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 206010010904 Convulsion Diseases 0.000 abstract 1
- 230000036461 convulsion Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001354 calcination Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a be applied to feed back control system of waste heat power generation kiln tail boiler, including kiln tail preheater, kiln tail boiler, boiler ash bucket, gyration tripper, zip fastener machine, high temperature fan, ash discharge pipe, row's material pipe, deposition bucket, humidification tower and vertical mill, the waste steam outlet connection kiln tail boiler's of kiln tail preheater steam inlet, kiln tail boiler's steam outlet connection boiler ash bucket, the bottom of boiler ash bucket is connected gyration tripper, the discharge gate of gyration tripper is located zip fastener machine top, high temperature fan passes through ash discharge pipe and connects boiler ash bucket, kiln tail preheater and boiler ash bucket are connected respectively to the feed inlet of ash discharge pipe, the discharge gate of ash discharge pipe is connected with humidification tower and vertical mill's feed inlet, the dust in the ash discharge pipe carries out the convulsions through high temperature fan, most dust enters vertical mill recycling production, the minor part dust subsides to humidification tower; the boiler ash hopper is communicated with the ash deposition hopper, the ash deposition hopper is connected with the ash discharge pipe through the discharge pipe, and the valve is arranged on the ash discharge pipe.
Description
Technical Field
The utility model relates to a waste heat power generation technical field, in particular to be applied to feed back control system of waste heat power generation kiln tail boiler.
Background
The waste heat power generation of the cement plant is to generate power by utilizing the heat generated by cement calcination, the heat generated by the calcination and heat dissipation of the rotary kiln is drawn into a kiln tail boiler by a big fan, and the boiler can absorb the heat and convert the heat into steam to generate power. During the air draft process, a large amount of high-temperature dust is brought back, and needs to be settled at the bottom of the boiler and discharged into a rotary kiln system.
At present, kiln tail boiler feed back design is mainly that a bottom zipper machine is discharged after a settlement technology is adopted, then a plurality of zipper machines at the downstream are transported backwards, then the kiln is fed into a lifting machine or the kiln is put into a warehouse, after the zipper machines are externally arranged, air is locked by mainly using a discharging separation wheel, and the air leakage of a system exists to cause energy loss. The material transfer system is provided with at least two zipper machines and a lifting machine, the operation needs 24 hours, on one hand, the equipment abrasion needs cost maintenance, on the other hand, after the equipment failure, the ash cannot be discharged, the boiler is blocked in a short time, the power generation is influenced, and the environment is polluted by the discharged dust.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a be applied to feed back control system of waste heat power generation kiln tail boiler, through addding the deposition bucket and arrange the material pipe, can't arrange the ash after preventing to draw zipper machine trouble and cause the putty.
The technical scheme of the utility model is that: a feed back control system applied to a waste heat power generation kiln tail boiler comprises a kiln tail preheater, a kiln tail boiler, a boiler ash bucket, a rotary feeder, a zipper machine, a high-temperature fan, an ash discharge pipe, a discharge pipe, an ash accumulation bucket, a humidifying tower and a vertical mill, wherein a waste steam outlet of the kiln tail preheater is connected with a steam inlet of the kiln tail boiler; the boiler ash hopper is communicated with the ash deposition hopper, the ash deposition hopper is connected with the ash discharge pipe through the discharge pipe, and the valve is arranged on the ash discharge pipe. Through addding deposition hopper and arranging the material pipe, arrange the material pipe and insert row ash pipe, inhale through high temperature fan's strong wind and immediately grind inside, avoided putty and the polluted environment problem that downstream equipment damages and lead to.
Furthermore, the connection of the ash deposition hopper and the discharge pipe is provided with an isolation net, and the isolation net prevents larger iron blocks from entering the high-temperature fan and preventing the high-temperature fan from being damaged.
Furthermore, be equipped with movable observation door on the deposition bucket, can observe whether putty of deposition bucket through movable observation door, conveniently patrol and examine simultaneously and open clearance debris.
Furthermore, shutter valves are respectively arranged between the ash discharge pipe and the kiln tail preheater, between the boiler ash bucket and between the ash discharge pipe and the vertical mill, and are used for the ash discharge pipe when the boiler is overhauled on line.
Further, be applied to feed back control system of waste heat power generation kiln tail boiler still includes the PLC controller, the PLC controller respectively with gyration tripper and draw the switch electric connection of zipper machine, the PLC controller is used for regularly opening and close gyration tripper and draw the zipper machine. Realize the timing switching of zip fastener machine and gyration glassware down through the PLC controller, use the clearance that the boiler ash bucket was pinned to natural dust fall, realized effectual lock wind, effectively reduce the rate of operation of zip fastener machine, reduce energy consumption and cost of maintenance.
According to the working principle of the feed back control system applied to the waste heat power generation kiln tail boiler, the kiln tail waste heat device discharges waste steam to the kiln tail boiler, the kiln tail boiler generates power by using waste heat of the waste steam, air draft is carried out through a high-temperature fan, partial dust is contained in steam flow, partial dust is sucked into an ash discharge pipe through the high-temperature fan, and the other part of dust falls into a boiler ash hopper at the bottom of the kiln tail boiler; when the rotary feeder or the zipper machine breaks down, dust in the ash hopper of the boiler is accumulated, and when the dust is accumulated to a certain degree, the dust enters the ash accumulation hopper, enters the ash discharge pipe through the discharge pipe and is sucked away by the high-temperature fan, so that material blockage is avoided; through glassware and the machine of zip fastener operation regularly under the control of PLC controller gyration, when equipment is in the shutdown state, the dust falls the dust naturally and piles up the clearance of pinning the boiler ash bucket, avoids the system to leak out, has realized effectual lock wind, effectively reduces the rate of operation and the cost of maintenance of the machine of zip fastener simultaneously, opens the glassware and the machine of zip fastener under the gyration again when the dust piles up the certain degree, can fully reduce the energy consumption.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a be applied to feed back control system of waste heat power generation kiln tail boiler through addding the deposition bucket and arranging the material pipe, arranges the material pipe and inserts row ash pipe, and strong wind through high temperature fan inhales immediately and grinds inside, has avoided down reaches equipment to damage putty and the polluted environment problem that leads to.
The utility model discloses a be applied to feed back control system of waste heat power generation kiln tail boiler realizes the timing switching of zip fastener machine and gyration lower glassware through the PLC controller, uses the clearance that the boiler ash bucket was pinned to natural dust fall, has realized effectual lock wind, effectively reduces the operating rate of zip fastener machine, reduces energy consumption and cost of maintenance.
Drawings
Fig. 1 is the utility model discloses a be applied to waste heat power generation kiln tail boiler's feed back control system's schematic diagram.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Examples
As shown in fig. 1, the present embodiment provides a feed back control system applied to a kiln tail boiler for waste heat power generation, which includes a kiln tail preheater 1, a kiln tail boiler 2, a boiler ash hopper 3, a rotary feeder 4, a zipper machine 5, a high temperature fan 6, an ash discharge pipe 7, a discharge pipe 8, an ash deposition hopper 9, a vertical mill 10, a humidifying tower 11, and a PLC controller.
As shown in fig. 1, a waste steam outlet of a kiln tail preheater is connected with a steam inlet of a kiln tail boiler, a steam outlet of the kiln tail boiler is connected with a boiler ash hopper, the bottom of the boiler ash hopper is connected with a rotary feeder, a discharge port of the rotary feeder is positioned above a zipper machine, a feed port of an ash discharge pipe is respectively connected with the kiln tail preheater and the boiler ash hopper, a discharge port of the ash discharge pipe is respectively connected with a humidifying tower and a feed port of a vertical mill, dust in the ash discharge pipe is subjected to air draft through a high-temperature fan, most of the dust enters the vertical mill for recycling production, a small part of the dust is settled to the humidifying tower and returns to the upper stage, and louver valves 12 are respectively arranged between the ash discharge pipe and the kiln tail preheater, the boiler ash hopper and; the boiler ash bucket is communicated with the ash deposition bucket, the ash deposition bucket is connected with the side surface of the boiler ash bucket, the ash deposition bucket is connected with the ash discharge pipe through the discharge pipe, and the valve 13 is arranged on the ash discharge pipe.
The PLC controller is respectively and electrically connected with the switch of the rotary feeder and the zipper machine, and the PLC controller is used for opening and closing the rotary feeder and the zipper machine at regular time. Realize the timing switching of zip fastener machine and gyration glassware down through the PLC controller, use the clearance that the boiler ash bucket was pinned to natural dust fall, realized effectual lock wind, effectively reduce the rate of operation of zip fastener machine, reduce energy consumption and cost of maintenance, in this embodiment, the glassware is shut down with the zip fastener machine to PLC controller control gyration down for four hours, and work can empty long-pending material half an hour.
As shown in fig. 1, an isolation net 14 is arranged at the joint of the ash deposition hopper and the discharge pipe, and prevents larger iron blocks from entering the high-temperature fan and damaging the high-temperature fan; the ash deposition bucket is provided with a movable observation door 15, and whether the ash deposition bucket is blocked or not can be observed through the movable observation door, and meanwhile, the movable observation door is convenient to inspect and open to clean sundries.
According to the working principle of the feed back control system applied to the waste heat power generation kiln tail boiler, the kiln tail waste heat device discharges waste steam to the kiln tail boiler, the kiln tail boiler generates power by using waste heat of the waste steam, air draft is carried out through a high-temperature fan, partial dust is contained in steam flow, partial dust is sucked into an ash discharge pipe through the high-temperature fan, and the other part of dust falls into a boiler ash hopper at the bottom of the kiln tail boiler; when the rotary feeder or the zipper machine breaks down, dust in the ash hopper of the boiler is accumulated, and when the dust is accumulated to a certain degree, the dust enters the ash accumulation hopper, enters the ash discharge pipe through the discharge pipe and is sucked away by the high-temperature fan, so that material blockage is avoided; through glassware and the machine of zip fastener operation regularly under the control of PLC controller gyration, when equipment is in the shutdown state, the dust falls the dust naturally and piles up the clearance of pinning the boiler ash bucket, avoids the system to leak out, has realized effectual lock wind, effectively reduces the rate of operation and the cost of maintenance of the machine of zip fastener simultaneously, opens the glassware and the machine of zip fastener under the gyration again when the dust piles up the certain degree, can fully reduce the energy consumption.
As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. A feed back control system applied to a kiln tail boiler of a waste heat power generation furnace is characterized by comprising a kiln tail preheater, a kiln tail boiler, a boiler ash bucket, a rotary feeder, a zipper machine, a high-temperature fan, an ash discharge pipe, a discharge pipe, an ash accumulation bucket, a humidifying tower and a vertical mill, wherein a waste steam outlet of the kiln tail preheater is connected with a steam inlet of the kiln tail boiler; the boiler ash hopper is communicated with the ash deposition hopper, the ash deposition hopper is connected with the ash discharge pipe through the discharge pipe, and the valve is arranged on the ash discharge pipe.
2. The feed back control system applied to the waste heat power generation kiln tail boiler as recited in claim 1, wherein an isolation net is arranged at the joint of the ash bucket and the discharge pipe.
3. The feed back control system applied to the waste heat power generation kiln tail boiler as recited in claim 1, wherein a movable observation door is arranged on the ash bucket.
4. The feed back control system applied to the waste heat power generation kiln tail boiler as recited in claim 1, wherein louver valves are respectively arranged between the ash discharge pipe and the kiln tail preheater, the boiler ash bucket and the vertical mill.
5. The feed back control system applied to the waste heat power generation kiln tail boiler as recited in claim 1, further comprising a PLC controller, wherein the PLC controller is electrically connected with the switch of the rotary feeder and the zipper machine respectively, and the PLC controller is used for opening and closing the rotary feeder and the zipper machine at regular time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991128.7U CN210663961U (en) | 2019-06-28 | 2019-06-28 | Feed back control system applied to waste heat power generation kiln tail boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991128.7U CN210663961U (en) | 2019-06-28 | 2019-06-28 | Feed back control system applied to waste heat power generation kiln tail boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210663961U true CN210663961U (en) | 2020-06-02 |
Family
ID=70813036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920991128.7U Expired - Fee Related CN210663961U (en) | 2019-06-28 | 2019-06-28 | Feed back control system applied to waste heat power generation kiln tail boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210663961U (en) |
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2019
- 2019-06-28 CN CN201920991128.7U patent/CN210663961U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |