CN107044781B - Accurate air supply control system of vertical cooling furnace - Google Patents
Accurate air supply control system of vertical cooling furnace Download PDFInfo
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- CN107044781B CN107044781B CN201611271956.0A CN201611271956A CN107044781B CN 107044781 B CN107044781 B CN 107044781B CN 201611271956 A CN201611271956 A CN 201611271956A CN 107044781 B CN107044781 B CN 107044781B
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- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 238000009826 distribution Methods 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000002918 waste heat Substances 0.000 description 14
- 238000011084 recovery Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 238000005245 sintering Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D2021/0007—Monitoring the pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a precise air supply control system of a vertical cooling furnace, which is characterized in that data are acquired through a shaft furnace, and air supply amounts of a corresponding part of annular air duct, a middle air supply channel and a central air supply channel are controlled and regulated to realize uniform air supply at multiple parts, so that uniform distribution of cold circulation air entering the shaft furnace in the circumferential direction of the shaft furnace can be effectively solved, uniform dropping of sinter in the shaft furnace in the circumferential direction is facilitated, uniform distribution of cold circulation air entering the sinter vertical cooling furnace in the circumferential direction of the shaft furnace is facilitated, uniform cooling of sinter in the shaft furnace is facilitated, and therefore, the cooling performance of the sinter vertical cooling furnace is improved, the cooling efficiency of the sinter vertical cooling furnace is improved, and the cooling time of the sinter in the shaft furnace is reduced; this will be more pronounced for large sinter shaft furnaces. The device is suitable for all air supply devices on large, medium and small shaft furnaces, and has the advantages of flexible adjustment, accurate control, convenient maintenance, reasonable structural arrangement, investment saving, obvious effect and the like.
Description
Technical Field
The utility model relates to the field of sinter cooling and waste heat recovery, in particular to a vertical cooling and waste heat recovery furnace for a sinter.
Background
The efficient recovery and utilization of the sintering ore waste heat resources is one of the main ways for reducing the energy consumption of the sintering process, is the key point of the recovery and utilization of the iron and steel waste heat and waste energy in China at present, and is listed as an 'eleventh five' and 'twelfth five' period 863 plan and a technological support plan project in China. At present, the recovery and utilization of the waste heat resources of the sinters in various countries in the world are mainly realized through a blast type circular cooler or a belt type cooler, the defects that the recovery of the waste heat of the sinters is partial, the quality of a heat carrier (cooling air from the cooler) is lower and the like are difficult to overcome are overcome, the sensible heat of the cooling waste gas of the sinters accounts for 19% -35% of the total energy consumption of the sintering process according to statistics, the sinters are directly fed into a blast furnace after being cooled on the sinters, are fed into the blast furnace after being cooled by the circular cooler, and the like. (1) The problem of system air leakage is difficult to solve, and the waste heat utilization efficiency decays fast; (2) the flue gas temperature is lower (300-400 ℃ generally), and the waste heat utilization efficiency is low. In addition, the high temperature and abrasion environment of the sintering process make the equipment failure rate higher, short-time shutdown is unavoidable, so that the fluctuation of the waste heat parameters is large, and the safety of a waste heat utilization system is endangered. Compared with the waste heat recovery system in the form of a traditional cooler, the tank type recovery system has the advantages of almost zero air leakage rate, full gas-solid heat exchange, high waste heat recovery rate, high heat carrier quality and the like. The method improves the existing sinter cooling process equipment, improves the cooling effect and the waste heat utilization efficiency of the sinter, reduces the return ore quantity, and has very important significance for saving energy, reducing emission and improving the benefit and the competitiveness of steel enterprises. For example, a bottom cross air distribution device of a sinter furnace type cooling device with the application number of 201320185553.X in the 15 th month of 2013 and a sinter vertical cooling and waste heat recovery furnace with the publication number of 103697707A published in the 02 th month of 2014 are provided with a plurality of air outlets respectively on the wall of a first air duct and a second air duct in the cooling furnace; analyzing the reasons of uneven cooling of the sinter in the vertical cooling furnace of the sinter, and as large particles are thrown to the wall side of the shaft furnace when the sinter is fed, small particles fall on the middle part of the shaft furnace, so that the material particle size distribution machine is uneven, the descending speed of the sinter is uneven and the air flow is uneven. The air supply device arranged at the bottom of the vertical cooling furnace for the sinter has great influence on the uniformity of the descent of the sinter and the uniformity of the air flow distribution in the shaft furnace. If the structure is favorable for the uniform falling of the sinter in the vertical furnace in the circumferential direction, the uniform distribution of the cold circulating gas entering the vertical furnace in the circumferential direction is favorable for realizing the uniform cooling of the sinter in the vertical furnace, so that the cooling performance of the vertical furnace is improved, the cooling efficiency of the vertical furnace is improved, and the cooling time of the sinter in the vertical furnace is reduced. This will be more pronounced for large sinter shaft furnaces.
Disclosure of Invention
The utility model provides a precise air supply control system of a vertical cooling furnace, which is characterized in that the temperature in the furnace and the air pressure data of each air chamber are collected through the vertical cooling furnace for sinter, each air quantity regulating valve is controlled through a detection control device, and the total air quantity in a smoke air main pipe is reasonably distributed to an upper ring flue, a middle ring flue and a lower ring flue through distribution valves; according to the working condition, the air quantity of each small air chamber is regulated by each regulating valve according to the temperature of the sinter and the air permeability of the sinter, so that the problem that the cooling air entering the sinter vertical cooling furnace is reasonably distributed at each part in the shaft furnace is effectively solved, the uniform cooling of the sinter in the furnace is facilitated, and the cooling performance of the sinter vertical cooling furnace is improved, the cooling efficiency of the sinter vertical cooling furnace is improved, and the cooling time of the sinter in the sinter vertical cooling furnace is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the accurate air supply control system of the vertical cooling furnace comprises an air supply device assembly and a detection control device, wherein the air supply device assembly comprises a shaft furnace shell, an upper cone hopper and a lower cone hopper, and an annular gap formed by inserting the upper cone hopper into the lower cone hopper forms an annular air channel; the upper cone hopper, the lower cone hopper and the shaft furnace shell divide the air chamber into an upper air chamber and a lower air chamber which are completely isolated through an upper partition plate and a lower partition plate, and an upper hood and a lower hood are arranged in the center of the lower air chamber; the upper air chamber is divided into N independent small air chambers through an air chamber partition plate, each small air chamber is connected with an upper ring flue through an upper branch pipe, a smoke air main pipe is arranged on one side of the upper ring flue, and an upper regulating valve is arranged on the upper branch pipe; the lower air chamber is divided into an independent middle air channel and a central air channel by a middle partition plate, a flow guide pipe, a central flow guide pipe and a wind shielding ring, and N independent right air chambers and N independent left air chambers are respectively arranged between the flow guide pipe and the central flow guide pipe by a plurality of lower partition plates; the middle of the central guide pipe is divided into 4 independent central air chambers through a central partition plate; the middle air channel is connected with the middle ring flue through a middle branch pipe, the middle branch pipe is provided with a middle regulating valve, the outside of the central air channel is connected with the lower ring flue through a lower branch pipe, the inside of the central air channel is connected with the central air chamber through an upper outlet, the lower branch pipe is provided with a lower regulating valve, the middle air channel in the lower air chamber is divided into a left air channel and a right air channel which are respectively sealed through a middle partition plate, the left air channel is communicated with the left air chamber through a left outlet, and the right air channel is communicated with the right air chamber through a right outlet.
The utility model is further provided with: the left air duct and the right air duct are respectively connected with the middle ring flue through middle branch pipes, and each middle branch pipe is provided with a middle regulating valve.
The utility model is further provided with: the upper ring flue is connected with the smoke wind main pipe through an upper branch pipe, and an upper distributing valve is arranged on the upper branch pipe; the middle ring flue is connected with the smoke wind main pipe through a middle branch pipe, and a middle distributing valve is arranged on the middle branch pipe; the lower ring flue is connected with the smoke wind main pipe through a lower branch pipe, and a lower distributing valve is arranged on the lower branch pipe.
The utility model is further provided with: the lower cone hopper is divided into a middle cone hopper and a small cone hopper, an annular gap is formed after the middle cone hopper is sleeved with the small cone hopper, the annular gap is closed through a soft connecting ring, and a vibrator is arranged on the small cone hopper.
The utility model is further provided with: the central honeycomb duct on be equipped with a plurality of gusset, be equipped with the locating piece between gusset and lower baffle, lower hood on be equipped with card support and pinhole, lower hood top pass through the bolt fastening on the windshield circle, the centre is hung the card through upper and lower card support and is blocked on the locating piece, the below passes through the pivot and fixes the pinhole on the lower hood on the lower baffle.
The utility model is further provided with: the detection control device comprises a thermal infrared imager arranged on the top of the shaft furnace and pressure monitoring points in each air chamber, and sends and receives signals of each upper regulating valve, each middle regulating valve and each lower regulating valve to regulate the air quantity of the independent air chamber; the flue gas main pipe respectively carries out total air quantity distribution on the upper ring flue, the middle ring flue and the lower ring flue through an upper distribution valve, a middle distribution valve and a lower distribution valve; the thermal infrared imager, the pressure of each air duct, the upper regulating valve, the middle regulating valve, the lower regulating valve, the upper distributing valve, the middle distributing valve and the lower distributing valve are respectively connected with the detection control device.
The beneficial effects of the utility model are as follows: the infrared thermal imager is arranged at the top of the shaft furnace to collect temperature field data in the furnace, and the control system is used for controlling and regulating the air supply quantity of the corresponding part annular air channel, the middle air supply channel and the central air supply channel to realize uniform air supply at multiple parts, so that uniform distribution of cold circulation gas entering the shaft furnace in the circumferential direction of the shaft furnace can be effectively solved, uniform falling of sinter in the shaft furnace in the circumferential direction is facilitated, uniform distribution of cold circulation gas entering the sinter vertical cooling furnace in the circumferential direction of the shaft furnace is facilitated, uniform cooling of sinter in the shaft furnace is facilitated, cooling performance of the sinter vertical cooling furnace is improved, cooling efficiency of the sinter vertical cooling furnace is improved, and cooling time of sinter in the shaft furnace is shortened. This will be more pronounced for large sinter shaft furnaces. The device is suitable for all air supply devices on large, medium and small shaft furnaces, and has the advantages of flexible adjustment, accurate control, convenient maintenance, reasonable structural arrangement, investment saving, obvious effect and the like.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a detection control device according to the present utility model;
FIG. 2 is a schematic view of the structure of the air supply assembly according to the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a cross-sectional view of C-C of FIG. 2;
FIG. 6 is a sectional view of D-D of FIG. 2;
FIG. 7 is a graph showing the distribution of cooling air in the lower plenum
In the figure: 1. the gas supply assembly, 2. Shaft housing, 3. Sinter, 4. Detection control device, 5. Fume duct, 5.1. Lower branch, 5.2. Middle branch, 5.3. Upper branch, 5.4. Upper distribution valve, 5.5. Middle distribution valve, 5.6. Upper loop flue, 5.7. Upper adjustment valve, 5.8. Upper branch, 5.9. Middle branch, 5.10. Middle adjustment valve, 5.11. Lower adjustment valve, 5.12. Lower branch, 5.13. Lower loop flue, 5.14. Middle loop flue, 5.15. Lower distribution valve, 6. Lower cone hopper, 6.1. Middle cone hopper, 6.2. Small cone hopper, 6.3. Vibrator, 6.4. Soft link, 7. Lower plenum, 7.1. Middle loop flue, 7.1.1 left air duct, 7.1.2 right air duct, 7.1.3 riser, 7.2 center air duct, 7.3 center baffle, 7.4 guide duct, 7.5 center guide duct, 7.6 center baffle, 7.7 lower baffle, 7.8 wind deflector, 7.9 positioning block, 7.10 right outlet, 7.11 left outlet, 7.12 right air chamber, 7.13 gusset, 7.14 left air chamber, 7.15 upper outlet, 7.16 center air chamber, 8 upper air chamber, 8.1 lower baffle, 8.2 upper baffle, 8.3 air chamber, 8.4 small air chamber, 9 upper cone hopper, 10 upper hood, 11 bolt, 12 lower hood, 12.1 card holder, 12.2 pin hole, 13 axle pin.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5 and 6, the accurate control air supply system of the vertical cooling furnace comprises an air supply device assembly 1 and a detection control device 4, wherein the air supply device assembly 1 comprises a shaft furnace shell 2, an upper cone hopper 9 and a lower cone hopper 6, and an annular gap formed by inserting the upper cone hopper 9 into the lower cone hopper 6 is formed into an annular air channel; the upper cone hopper 9, the lower cone hopper 6 and the shaft furnace shell 2 divide the air chamber into an upper air chamber 8 and a lower air chamber 7 which are completely isolated through an upper partition plate 8.1 and a lower partition plate 8.2, and an upper hood 10 and a lower hood 12 are arranged in the center of the lower air chamber 7; the upper air chamber 8 is divided into N independent small air chambers 8.4 through air chamber partition plates 8.3, each small air chamber 8.4 is connected with an upper ring flue 5.6 through an upper branch pipe 5.8, and an upper regulating valve 5.7 is arranged on the upper branch pipe 5.8; the lower air chamber 7 is divided into an independent middle air channel 7.1 and a central air channel 7.2 through a middle partition plate 7.3, a flow guide pipe 7.4, a central flow guide pipe 7.5 and a wind shielding ring 7.8, and N independent right air chambers 7.12 and left air chambers 7.14 are divided between the flow guide pipe 7.4 and the central flow guide pipe 7.5 through a plurality of lower partition plates 7.7; the middle of the central guide pipe 7.5 is divided into 4 independent central air chambers 7.16 through a central partition plate 7.6; the middle air duct 7.1 is connected with the middle ring flue 5.14 through a middle branch pipe 5.9, a middle regulating valve 5.10 is arranged on the middle branch pipe 5.9, the outer part of the middle air duct 7.2 is connected with the lower ring flue 5.13 through a lower branch pipe 5.12, the inner part is connected with the central air chamber 7.16 through an upper outlet 7.15, and a lower regulating valve 5.11 is arranged on the lower branch pipe 5.12.
As shown in fig. 1, the upper ring flue 5.6 is connected with the main flue pipe 5 through an upper branch pipe 5.3, and an upper distributing valve 5.4 is arranged on the upper branch pipe 5.3; the middle ring flue 5.14 is connected with the smoke and wind main pipe 5 through a middle branch pipe 5.2, and a middle distribution valve 5.5 is arranged on the middle branch pipe 5.2; the lower ring flue 5.13 is connected with the smoke and wind main pipe 5 through a lower branch pipe 5.1, and a lower distributing valve 5.15 is arranged on the lower branch pipe 5.1; the flue gas volume in the flue gas main pipe 5 is reasonably distributed through the upper distribution valve 5.4, the middle distribution valve 5.5 and the lower distribution valve 5.15.
As shown in fig. 2, 3 and 5, the middle air duct 7.1 in the lower air chamber 7 is divided into a left air duct 7.1.1 and a right air duct 7.1.2 which are respectively closed through a vertical plate 7.1.3, the left air duct 7.1.1 is communicated with the left air chamber 7.12 through a left outlet 7.11, the right air duct 7.1.2 is communicated with the right air chamber 14 through a right outlet 7.10, the left air duct 7.1.1 and the right air duct 7.1.2 are respectively connected with the middle ring flue 5.14 through middle branch pipes 5.9, and each middle branch pipe 5.9 is provided with a middle regulating valve 5.10; through the interior left wind channel 7.1.1 and right wind channel 7.1.2 in well wind channel 7.1, can be with four feed openings in the shaft furnace more even subdivision, prevent simultaneously that the sintering ore 3 in four feed openings from hardening or blocking the back from causing the gas circuit short circuit, walk by the short circuit side a large amount of gas in the wind channel 7.1 in the left and right sides, cause the amount of wind in wind channel 7.1 in the left and right sides can not evenly effectively distribute.
As shown in fig. 2, the lower cone hopper 6 is divided into a middle cone hopper 6.1 and a small cone hopper 6.2, the middle cone hopper 6.1 is sleeved with the small cone hopper 6.2 to form an annular gap, the annular gap is sealed by a flexible connection 6.4, the small cone hopper 6.2 is provided with a vibrator 6.3, and the problem that sintered ore hangs on the upper cone hopper 9 and the lower cone hopper 6 is prevented by vibration.
As shown in fig. 2, 3 and 5, the central flow guide pipe 7.5 is provided with a plurality of rib plates 7.13, a positioning block 7.9 is arranged between the rib plates 7.13 and the lower partition plate 7.7, the lower hood 12 is provided with a clamping support 12.1 and a pin hole 12.2, the upper part of the lower hood 12 is fixed on the wind shield 7.8 through a bolt 11, the middle part of the lower hood 12 is clamped on the positioning block 7.9 through an upper clamping support 12.1, and the lower part of the lower hood 12 is fixed on the lower partition plate 7.7 through a pin shaft 13.
As shown in fig. 1 and 2, the detection control device 4 comprises a thermal infrared imager arranged on the top of the shaft furnace and pressure monitoring points in each air chamber, and is used for adjusting the air quantity of the independent air chamber by sending and receiving signals of each upper adjusting valve 5.7, each middle adjusting valve 5.10 and each lower adjusting valve 5.11; the total air quantity distribution is carried out on the upper ring flue 5.6, the middle ring flue 5.14 and the lower ring flue 5.13 respectively by sending and receiving signals of the upper distribution valve 5.4, the middle distribution valve 5.5 and the lower distribution valve 5.15; the thermal infrared imager, the pressure of each air duct, the upper regulating valve 5.7, the middle regulating valve 5.10, the lower regulating valve 5.11, the upper distributing valve 5.4, the middle distributing valve 5.5 and the lower distributing valve 5.15 are respectively connected with the detection control device 4.
Claims (6)
1. The accurate air supply control system of the vertical cooling furnace comprises an air supply device assembly and a detection control device, wherein the air supply device assembly comprises a shaft furnace shell, an upper cone hopper and a lower cone hopper, and an annular gap formed by inserting the upper cone hopper into the lower cone hopper forms an annular air channel; the upper cone hopper, the lower cone hopper and the shaft furnace shell divide the air chamber into an upper air chamber and a lower air chamber which are completely isolated through an upper partition plate and a lower partition plate, and an upper hood and a lower hood are arranged in the center of the lower air chamber; the method is characterized in that: the upper air chamber is divided into N independent small air chambers through an air chamber partition plate, each small air chamber is connected with an upper ring flue through an upper branch pipe, a smoke air main pipe is arranged on one side of the upper ring flue, and an upper regulating valve is arranged on the upper branch pipe; the lower air chamber is divided into an independent middle air channel and a central air channel by a middle partition plate, a flow guide pipe, a central flow guide pipe and a wind shielding ring, and N independent right air chambers and N independent left air chambers are respectively arranged between the flow guide pipe and the central flow guide pipe by a plurality of lower partition plates; the middle of the central guide pipe is divided into 4 independent central air chambers through a central partition plate; the middle air channel is connected with the middle ring flue through a middle branch pipe, the middle branch pipe is provided with a middle regulating valve, the outside of the central air channel is connected with the lower ring flue through a lower branch pipe, the inside of the central air channel is connected with the central air chamber through an upper outlet, the lower branch pipe is provided with a lower regulating valve, the middle air channel in the lower air chamber is divided into a left air channel and a right air channel which are respectively sealed through a middle partition plate, the left air channel is communicated with the left air chamber through a left outlet, and the right air channel is communicated with the right air chamber through a right outlet.
2. The accurate air supply control system for a shaft cooling furnace according to claim 1, wherein: the left air duct and the right air duct are respectively connected with the middle ring flue through middle branch pipes, and each middle branch pipe is provided with a middle regulating valve.
3. The accurate air supply control system for a shaft cooling furnace according to claim 1, wherein: the upper ring flue is connected with the smoke wind main pipe through an upper branch pipe, and an upper distributing valve is arranged on the upper branch pipe; the middle ring flue is connected with the smoke wind main pipe through a middle branch pipe, and a middle distributing valve is arranged on the middle branch pipe; the lower ring flue is connected with the smoke wind main pipe through a lower branch pipe, and a lower distributing valve is arranged on the lower branch pipe.
4. The accurate air supply control system for a shaft cooling furnace according to claim 1, wherein: the lower cone hopper is divided into a middle cone hopper and a small cone hopper, an annular gap is formed after the middle cone hopper is sleeved with the small cone hopper, the annular gap is closed through a soft connecting ring, and a vibrator is arranged on the small cone hopper.
5. The accurate air supply control system for a shaft cooling furnace according to claim 1, wherein: the central honeycomb duct on be equipped with a plurality of gusset, be equipped with the locating piece between gusset and lower baffle, lower hood on be equipped with card support and pinhole, lower hood top pass through the bolt fastening on the windshield circle, the centre is hung the card through upper and lower card support and is blocked on the locating piece, the below passes through the pivot and fixes the pinhole on the lower hood on the lower baffle.
6. The accurate air supply control system for a shaft cooling furnace according to claim 1, wherein: the detection control device comprises a thermal infrared imager arranged on the top of the shaft furnace and pressure monitoring points in each air chamber, and sends and receives signals of each upper regulating valve, each middle regulating valve and each lower regulating valve to regulate the air quantity of the independent air chamber; the flue gas main pipe respectively carries out air quantity distribution on the upper ring flue, the middle ring flue and the lower ring flue through an upper distribution valve, a middle distribution valve and a lower distribution valve; the thermal infrared imager, the pressure of each air duct, the upper regulating valve, the middle regulating valve, the lower regulating valve, the upper distributing valve, the middle distributing valve and the lower distributing valve are respectively connected with the detection control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271956.0A CN107044781B (en) | 2016-12-24 | 2016-12-24 | Accurate air supply control system of vertical cooling furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271956.0A CN107044781B (en) | 2016-12-24 | 2016-12-24 | Accurate air supply control system of vertical cooling furnace |
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| Publication Number | Publication Date |
|---|---|
| CN107044781A CN107044781A (en) | 2017-08-15 |
| CN107044781B true CN107044781B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611271956.0A Active CN107044781B (en) | 2016-12-24 | 2016-12-24 | Accurate air supply control system of vertical cooling furnace |
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| CN111707698B (en) * | 2020-07-16 | 2021-04-13 | 西安交通大学 | Experimental device and test method for high-temperature calcination reaction characteristics in flow and temperature cooperative alternating heating mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232519A (en) * | 2007-03-20 | 2008-10-02 | Mitsubishi-Hitachi Metals Machinery Inc | Sintered ore cooling device |
| CN205653399U (en) * | 2016-04-26 | 2016-10-19 | 中冶焦耐工程技术有限公司 | Put out stove multi -wind way air feed automatic regulating system futilely |
| CN207779150U (en) * | 2016-12-24 | 2018-08-28 | 瑞安市阀门一厂 | The vertical accurate air feed control system of cooling furnace |
-
2016
- 2016-12-24 CN CN201611271956.0A patent/CN107044781B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232519A (en) * | 2007-03-20 | 2008-10-02 | Mitsubishi-Hitachi Metals Machinery Inc | Sintered ore cooling device |
| CN205653399U (en) * | 2016-04-26 | 2016-10-19 | 中冶焦耐工程技术有限公司 | Put out stove multi -wind way air feed automatic regulating system futilely |
| CN207779150U (en) * | 2016-12-24 | 2018-08-28 | 瑞安市阀门一厂 | The vertical accurate air feed control system of cooling furnace |
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| CN107044781A (en) | 2017-08-15 |
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