CN108267010B - Gas injection device and method for eliminating influence of crosswind - Google Patents
Gas injection device and method for eliminating influence of crosswind Download PDFInfo
- Publication number
- CN108267010B CN108267010B CN201810262191.7A CN201810262191A CN108267010B CN 108267010 B CN108267010 B CN 108267010B CN 201810262191 A CN201810262191 A CN 201810262191A CN 108267010 B CN108267010 B CN 108267010B
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- driving device
- gas injection
- blowing
- gas
- connecting rod
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- 238000002347 injection Methods 0.000 title claims abstract description 129
- 239000007924 injection Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000005245 sintering Methods 0.000 claims abstract description 129
- 238000007664 blowing Methods 0.000 claims abstract description 124
- 239000007789 gas Substances 0.000 claims abstract description 121
- 239000002737 fuel gas Substances 0.000 claims abstract description 62
- 230000002265 prevention Effects 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 230000008859 change Effects 0.000 abstract description 3
- 239000000567 combustion gas Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 239000000446 fuel Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000012256 powdered iron Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/22—Sintering; Agglomerating in other sintering apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
Abstract
The utility model provides a eliminate gas jetting device of crosswind influence, this device includes sintering pallet, gas jetting device, jetting cover. The sintering machine trolley is positioned in the blowing cover. The fuel gas injection device is positioned above the sintering pallet. The two side wall plates of the blowing cover are positioned at the two sides of the sintering machine trolley. The top of the blowing cover is a shutter type side wind roof prevention device. The shutter type side wind prevention roof device comprises a connecting rod and a shutter plate. One end of the connecting rod extends out of the side surface of the blowing cover. The shutter plate is connected with the connecting rod. The top of the blowing cover is provided with a shutter type side wind roof prevention device. By adjusting the shutter type side wind prevention top plate device, the influence of side wind on the internal combustion gas injection of the sintering machine is eliminated, and an injection cover device and a control method which can be changed along with the change of the on-site side wind condition and the cover internal flow field condition are developed, so that the aims of stable production, smooth production and high production of the whole production line are achieved.
Description
Technical Field
The invention relates to a gas blowing device and a gas blowing method, in particular to a gas blowing device and a gas blowing method for eliminating the influence of crosswind, and belongs to the field of sintering.
Background
The sintering process is one key link in iron making process, and is characterized by that various powdered iron-containing raw materials are mixed with proper quantity of fuel and flux, and added with proper quantity of water, and after mixing and pelletizing, the materials are undergone the processes of a series of physical-chemical change on sintering equipment, and sintered into blocks, so that they are fed into blast furnace to implement next process.
In order to reduce the coke ratio and smelting cost of blast furnace ironmaking, the requirements of blast furnace on sinter are often high strength and high reducibility. In the sintering process, sintered ore is generally required to have high strength, high yield, low return rate, and low fuel consumption. The high-strength and high-reducibility sintered ore consumes less coke in the blast furnace smelting process, thereby reducing the emission of carbon dioxide. In the long term, carbon dioxide emission reduction requirement becomes one of the bottlenecks restricting the development of the steel industry. According to the related data, the carbon dioxide emission of the sintering and blast furnace process accounts for about 60% of the total industrial emission. Therefore, reduction of the sintered solid fuel consumption ratio and reduction of the fuel ratio of the blast furnace burden are urgent needs of iron-making technology, both from the viewpoint of cost reduction of enterprises and from the viewpoint of environmental protection.
In such a large environment, the "technology for injecting gas fuel on the surface of a sintered material" developed by JFE corporation in japan has been developed, and the principle is that gas fuel diluted below the lower limit of the combustible concentration is injected above a sintering pallet at a distance after an ignition furnace by an injection device, so that the gas fuel is burned and heated in a sintered material layer, and the process diagram is shown in fig. 1-2. The technology can reduce the solid carbon consumption and CO in the production of the sinter 2 And meanwhile, the emission quantity is increased, and the high-temperature zone width of the sinter layer during production is widened due to the combustion of the gas fuel, so that the sinter temperature time of 1200-1400 ℃ is prolonged, and the strength and the 5-10 mm porosity of the sinter are effectively enhanced. At present, the technology has good energy saving, emission reduction and quality improvement effects, and has good market development potential in the future. The structure of the blowing device in the prior art is shown in fig. 1-2: the blowing device consists of a blowing main pipe, a blowing branch pipe, a blowing pipe row, a blowing cover and a side sealing piece. One end of the blowing main pipe is connected with the gas pipeline in the factory, and the other end of the blowing main pipe is connected with the blowing pipe row through the blowing branch pipe, and the blowing pipe row is positioned in the blowing cover and above the sintering machine trolley. When in production, gas enters the injection main pipe from the gas pipeline in the factory and then enters the injection branch pipe, finally enters the injection pipe row and is sprayed out, and is mixed with air in the injection cover to form mixed gas with the concentration required by design, and enters the sinter bed to assist sintering, and the side sealing piece can effectively ensure that the gas and the mixed gas in the cover can not overflowTo the outside of the cover.
The utility model provides a gas jetting device under the prior art, owing to lack the structural measure that can effectively eliminate the crosswind influence, so be open workshop at the sintering machine workshop, even when open workshop in seaside, the influence that receives the crosswind covers in the air current field disorder, gas and atmosphere can't mix steadily to can bring following problem for the production:
1. gas concentration of the sucked material layer is uneven: when the airflow field in the cover is disturbed due to the influence of the side wind, the fuel gas cannot be well and stably mixed with the air in the cover, and the situation that part of the fuel gas is not diluted to the designed concentration or part of the fuel gas is diluted to below the designed concentration is necessarily generated, so that after the fuel gas is sucked into the material layer, the concentration of the fuel gas is different, the burning position and the heat compensation amount are different, and the auxiliary sintering effect of the fuel gas injection is greatly negatively influenced;
2. easily cause gas to escape: when the airflow field in the cover is disturbed due to the influence of the side wind, the cover is not provided with a stable and uniform downward flow field, so that the negative pressure of the material surface can not form suction force to the fuel gas sprayed out of the spraying pipe well, and when the specific gravity of the selected fuel gas (such as coke oven gas) is lighter than that of the atmosphere, the situation that part of the fuel gas gets rid of the suction force of the material surface and escapes upwards is necessarily formed. Thus, serious energy waste can be caused, and potential safety hazards of personnel poisoning can be generated.
Disclosure of Invention
Aiming at the problems in the prior art, the operation of a sintering machine in the prior art is influenced by side wind, so that the effect of jetting of fuel gas is seriously hindered. By adjusting the shutter type side wind prevention top plate device, the influence of side wind on the internal combustion gas injection of the sintering machine is eliminated, and an injection cover device and a control method which can be changed along with the change of the on-site side wind condition and the cover internal flow field condition are developed, so that the aims of stable production, smooth production and high production of the whole production line are achieved.
According to a first embodiment of the present invention, a gas injection device is provided that eliminates the effects of crosswind.
The utility model provides a eliminate gas jetting device of crosswind influence, this device includes sintering pallet, gas jetting device, jetting cover. The sintering machine trolley is positioned in the blowing cover. The fuel gas injection device is positioned above the sintering pallet. The two side wall plates of the blowing cover are positioned at the two sides of the sintering machine trolley. The top of the blowing cover is a shutter type side wind roof prevention device. The shutter type side wind prevention roof device comprises a connecting rod and a shutter plate. One end of the connecting rod extends out of the side surface of the blowing cover. The shutter plate is connected with the connecting rod.
In the invention, the gas injection device comprises a gas injection main pipe, a gas injection branch pipe and a gas injection pipe. The gas injection pipe is arranged above the sintering pallet and is positioned in the injection cover. One end of the fuel gas injection branch pipe is connected with the fuel gas injection main pipe, and the other end is connected with the fuel gas injection pipe.
Preferably, the device further comprises rectifying means. The rectifying device comprises a winch device, a rope, a fixed pulley and a rectifying plate. The winch device is arranged outside the blowing hood. The fixed pulley is arranged on the bottom surface of the shutter type side wind roof prevention device and is positioned right above the gas injection pipe. One end of the rope is connected with the winch device, and the other end of the rope is connected with the rectifying plate after passing through the fixed pulley. The rectification plate is arranged between the fixed pulley and the gas injection pipe.
Preferably, the louver type side wind roof prevention device further includes a driving device. The driving device is connected with the connecting rod.
Preferably, the apparatus further comprises an anemometer. The wind speed detector is arranged on the blowing cover and is positioned above the sintering machine trolley. The wind speed detector detects the wind speed at two sides of the sintering machine trolley in the blowing cover.
Preferably, the driving device is an electric driving device.
Preferably, the driving device is a pneumatic driving device. The pneumatic driving device is a cylinder driving device. The cylinder driving device comprises a cylinder body, a piston and a three-way electromagnetic valve. Wherein, the opening and closing of the three-way electromagnetic valve controls the air inlet and outlet of the front and back chambers of the cylinder body, thereby controlling the piston to move back and forth in the cylinder body. The piston is connected to the connecting rod such that the connecting rod rotates or moves.
Preferably, the shutter type side wind roof prevention device includes 2 links, one of which extends from one side of the blowing cover and is connected to the driving device, and the other of which extends from the other side of the blowing cover and is connected to the driving device. Two sides of the shutter plate are respectively connected with a connecting rod.
Preferably, the up-down positions of the 2 connecting rods are arranged in parallel. The driving device drives the connecting rod to move and drives the shutter plate to move obliquely.
Preferably, the rope is a steel wire rope.
Preferably, the apparatus further comprises a rectifying means driving means. The rectifying device driving device is connected with the winch device and drives the winch device to rotate.
Preferably, the rectifying plate is disposed parallel to the upper surface of the sintering pallet.
Preferably, the apparatus further comprises a control system. The control system is connected with the wind speed detector and controls the driving device and the rectifying device driving device.
According to a second embodiment of the present invention, a gas injection method for eliminating the influence of crosswind is provided.
A gas injection method for eliminating the influence of crosswind or a method using the gas injection apparatus according to the first embodiment, the method comprising the steps of:
1) The sintering machine starts to run, and the sintering machine trolley moves forwards;
2) The wind speed detector detects the wind speeds at two sides of the sintering machine trolley in the blowing cover and feeds the wind speeds back to the control system; if the crosswind does not affect the fuel gas injection, starting to execute the step 5); if the crosswind influences the injection of the fuel gas, executing the step 3);
3) The control system controls the driving device, the driving device acts on the connecting rod, and the movement of the connecting rod drives the shutter plate to move obliquely; and/or
The control system controls the rectifying device driving device, the rectifying device driving device acts on the winch device, and the rotation of the winch device lifts or lowers the rectifying plate, so that the distance between the rectifying plate and the sintering machine trolley is adjusted;
4) Detecting the wind speeds at two sides of the sintering machine trolley in the injection cover again to confirm that the injection of the fuel gas is not influenced;
5) And starting to blow fuel gas.
Preferably, the method further comprises: 4) In the running and gas blowing process of the sintering machine, the wind speed detector detects the wind speeds at two sides of the sintering machine trolley in the blowing cover in real time, the judgment is carried out according to the wind speeds, and if the side wind does not influence the gas blowing, the running is continued; if the crosswind influences the injection of the fuel gas, the inclined angle of the shutter plate is adjusted in real time through the driving device, and/or the distance between the rectifying plate and the sintering pallet is adjusted through the driving device of the rectifying device.
According to the invention, through the arrangement of the wind speed detector, the wind speed value at the two sides close to the upper part of the material surface in the cover can be detected in real time in the production process.
In the invention, an adjustable lifting rectifying plate is additionally arranged in the blowing cover in the prior art and consists of a winch device, a steel wire rope, a fixed pulley and a rectifying plate, wherein the rectifying plate is parallel to the material surface and is positioned above the material surface, one end of the steel wire rope is connected with the rectifying plate, the other end of the steel wire rope is connected with the winch device, and the winch device is operated to apply pulling force to the steel wire rope so as to control the lifting movement of the rectifying plate.
In the prior art, the installation of the gas injection device in the sintering machine greatly increases the sintering effect of the sintered ore and improves the quality of the finished ore. However, because of the large-scale equipment of the sintering machine, the sintering machine is generally arranged in an open environment, and a large amount of air is required to be sucked into the sintering machine, closed sintering cannot be performed, that is, the outer side of the sintering machine is generally communicated with the atmosphere. Because the size of the sintering machine is large, the external environment is open, the use of the sintering machine is often influenced by side wind at two sides of the sintering machine, if a blowing device is started, fuel gas is blown out from a blowing pipe and is necessarily influenced by the side wind before entering below the surface of a sintered ore, the applicant of the invention uses the sintering machine with the blowing device in the actual production process, and finds that the side wind has great influence on the blowing of the fuel gas, even if a blowing cover is arranged, the blowing cover can only reduce the influence of wind at two sides of a trolley of the sintering machine, but the side wind at the outer side of the sintering machine enters the sintering machine from the upper part of the trolley blowing cover of the sintering machine, so that the air flow field in the cover is disturbed, the fuel gas cannot be well mixed with the atmosphere in the cover, partial fuel gas is not diluted to the designed concentration or the condition that the partial fuel gas is diluted to the designed concentration is below, after being sucked into the material layer, the combustion position and heat supplement quantity of the fuel gas are different, and the auxiliary effect of the blowing of the fuel gas is greatly influenced; in addition, when the airflow field in the cover is disturbed due to the influence of the side wind, the flow field in the cover is not stable and uniform downward, so that the negative pressure of the material surface can not form suction force to the fuel gas sprayed out of the spraying pipe well, and when the specific gravity of the selected fuel gas (such as coke oven gas) is lighter than that of the atmosphere, the situation that part of the fuel gas gets rid of the suction force of the material surface and escapes upwards is necessarily formed. Thus, serious energy waste can be caused, and potential safety hazards of personnel poisoning can be generated.
According to the invention, the top of the blowing cover is provided with the shutter type side wind roof plate device, and the shutter type side wind roof plate device can adaptively adjust the opening of the top of the blowing cover (namely the opening of the top of the blowing cover) according to the size of side wind, so that the air circulation proportion between the inside of the blowing cover and the outside of the sintering machine can be well eliminated. For example: if the lateral wind on the outer side of the sintering machine is large, the opening degree of the top of the blowing cover is reduced by the shutter type lateral wind prevention top plate device, and the channel area of the blowing cover, which is communicated with the air on the outer side of the sintering machine, is reduced, so that the influence of the lateral wind is reduced or even eliminated; if the lateral wind of the outer side of the sintering machine is smaller, the opening of the top of the blowing cover is increased through the shutter type lateral wind prevention top plate device, the channel area of the blowing cover, which is in air communication with the outer side of the sintering machine, is increased, and the sintering effect of the sintering machine on the sintering ore is improved while the gas blowing is not influenced.
In the present invention, the louver type side wind roof panel apparatus is similar to the louver structure of the window in the house in the prior art, and is generally a link and a louver (or louver), and the inclination angle of the louver can be adjusted by the movement of the link, thereby adjusting the opening degree of the entire louver type side wind roof panel apparatus. In general, the included angle between the louver board and the connecting rod is 0-90 degrees, and the smaller the included angle is, the smaller the opening degree of the louver type side wind prevention roof device is; the larger the included angle is, the larger the opening degree of the shutter-type side wind roof device is. For example: when the included angle between the louver plates and the connecting rod is 90 degrees, namely the direction of the surface of the louver plates is vertical to the axial direction of the connecting rod, the opening of the louver type side wind roof prevention device is the largest; when the included angle between the louver board and the connecting rod is 0 degree, that is, the direction of the surface of the louver board is parallel to the axial direction of the connecting rod, the opening degree of the louver type side wind roof prevention device is minimum.
In the present invention, the device further comprises rectifying means. The rectifying device is an adjustable rectifying device, that is to say, the rectifying device can adjust the distance between the rectifying plate and the gas injection pipe according to actual production requirements. The rectifying device can also eliminate the influence of the crosswind on the gas injection. Through the rectifying device, the flow direction of air entering the injection cover from the outside of the sintering machine can be adjusted, so that the air entering the upper part of the sintering material surface from the outside is changed into uniform flow direction air after passing through the rectifying device, and the air is convenient to mix with fuel gas. When the external crosswind is large, the distance between the rectifying plate and the gas injection pipe is adjusted by adjusting the height of the rectifying device. For example, when the external crosswind is small, the opening degree of the shutter-type crosswind prevention roof device can be increased, the influence of the crosswind can be eliminated through the adjustment of the rectifying device, and the smaller the crosswind is, the higher the position of the rectifying device can be; the larger the crosswind, the lower the position of the rectifying device; when the external side wind is large, the opening degree of the shutter type side wind prevention top plate device can be adjusted to be small, the influence of the side wind on the injection of the fuel gas is reduced, then the influence of the side wind is further eliminated through the adjustment of the rectifying device, and the smaller the side wind is, the higher the position of the rectifying device can be; the greater the crosswind, the lower the position of the fairing.
In the present invention, a driving device is provided, and the driving device may be an electric type or a pneumatic type, so long as the movement of the link can be driven by the provided driving device, thereby adjusting the inclination angle of the louver. The driving device is arranged, so that the gas injection device for eliminating the influence of the crosswind is more convenient to operate and more intelligent.
The applicant has used the gas injection device for eliminating the influence of the side wind in the actual sintering process, the opening degree of the shutter type side wind prevention top plate device is adjusted through the adjustment of the inclined angle of the shutter plate, and the influence of the side wind on the gas injection of the sintering machine can be well eliminated through the adjustment of the distance between the rectifying plate and the sintering machine trolley, so that the problem brought by the side wind can be completely solved, and a good effect is obtained.
In the invention, the side wall plates of the blowing cover refer to the panels of the blowing cover positioned at two sides of the sintering machine trolley, and mainly support and lease.
In the present invention, the devices not illustrated are all devices commonly known in the art, and are well known to those skilled in the art.
In the present invention, the length of the sintering machine (or the running length of the sintering machine carriage) is 70 to 140 meters, preferably 80 to 130 meters, more preferably 90 to 120 meters.
In the present invention, the seal cap is common to the blowing cap. The gas injection pipe, the gas injection pipe row and the injection pipe are all used, and the same component is expressed. The trolley is universal with the sintering machine trolley.
In the present invention, the length of the louver type side wind roof device (the direction in which the sintering pallet is traveling) may be the same as or shorter than the length of the blowing cover. In general, the length of the louver type side roof panel device is 50 to 100%, preferably 60 to 98%, and more preferably 70 to 95% of the length of the blowing cover.
In the present invention, the width of the louver type side roof panel device (perpendicular to the traveling direction of the sintering pallet) is generally slightly narrower than the width of the top of the blowing hood. The width of a typical louver type side wind roof device is 70 to 100%, preferably 80 to 98%, more preferably 85 to 95% of the width of the top of the blowing hood.
In the present invention, the length and width of the louver can be set according to the actual production process.
Compared with the prior art, the gas injection device for eliminating the influence of the crosswind has the following beneficial technical effects:
1. the shutter type side wind prevention top plate device can freely adjust the opening of the top of the blowing cover and adjust the size of the passage area in the blowing cover for air circulation with the outer side of the sintering machine, thereby reducing or even eliminating the influence of side wind;
2. through setting up fairing, adjust fairing's height to the interval between pinion rack and the gas injection pipe has been adjusted. The influence of the side wind can be eliminated;
3. the influence of the side wind on the gas injection is further eliminated by the aid of the two technical means of the shutter type side wind prevention top plate device and the rectifying device, and the two technical means can be cooperatively processed.
Drawings
FIG. 1 is a schematic diagram of a blowing device of a sintering machine in the prior art;
FIG. 2 is a cross-sectional view of a prior art sintering machine blowing apparatus;
FIG. 3 is a schematic diagram of a gas injection device for eliminating the influence of crosswind according to the present invention;
FIG. 4 is a schematic diagram of another design structure of a gas injection device for eliminating the influence of crosswind according to the present invention;
fig. 5 is a schematic control diagram of a gas injection method for eliminating the influence of crosswind according to the present invention.
Reference numerals: 1: sintering machine trolley; 2: a fuel gas injection device; 201: a fuel gas injection header pipe; 202: a fuel gas injection branch pipe; 203: a gas injection pipe; 3: a blowing cover; 4: a shutter type side wind roof device; 401: a connecting rod; 402: a louver board; 403: a driving device; 5: a rectifying device; 501: a winch device; 502: a rope; 503: a fixed pulley; 504: a rectifying plate; 6: a wind speed detector; 7: a cylinder driving device; 701: a cylinder; 702: a piston; 703: a three-way electromagnetic valve; 8: a rectifying device driving device; 9: and a control system.
Detailed Description
According to a first embodiment of the present invention, a gas injection device is provided that eliminates the effects of crosswind.
The utility model provides a eliminate gas jetting device of crosswind influence, this device includes sintering pallet 1, gas jetting device 2, jetting cover 3. The sintering pallet 1 is located in the blowing hood 3. The gas injection device 2 is located above the sintering pallet 1. Two side wall plates of the blowing hood 3 are located on both sides of the sintering pallet 1. The top of the blowing cover 3 is a shutter type side wind roof prevention device 4. The louver type side wind roof device 4 includes a link 401 and a louver 402. One end of the link 401 protrudes out of the side of the blowing hood 3. The shutter plate 402 is connected to the link 401.
In the present invention, the gas injection device 2 includes a gas injection header 201, a gas injection branch 202, and a gas injection pipe 203. The gas injection pipe 203 is disposed above the sintering pallet 1, and the gas injection pipe 203 is located in the injection hood 3. The fuel gas injection branch pipe 202 has one end connected to the fuel gas injection header 201 and the other end connected to the fuel gas injection pipe 203.
Preferably, the device further comprises rectifying means 5. The rectifying device 5 includes a winch device 501, a rope 502, a fixed pulley 503, and a rectifying plate 504. The winch device 501 is arranged outside the blowing hood 3. The fixed pulley 503 is provided on the bottom surface of the louver type side wind roof apparatus 4 and is located directly above the gas blowing pipe 203. One end of the rope 502 is connected to the winch 501, and the other end of the rope 502 is connected to the rectifying plate 504 via the fixed pulley 503. The rectifying plate 504 is provided between the fixed pulley 503 and the gas blowing pipe 203.
Preferably, the louver type side wind roof prevention device 4 further includes a driving device 403. The driving device 403 is connected to the link 401.
Preferably, the device further comprises an anemometer 6. The wind speed detector 6 is provided on the blowing hood 3 and above the sintering pallet 1. The wind speed detector 6 detects the wind speed at both sides of the sintering pallet 1 in the blowing hood 3.
Preferably, the driving device 403 is an electric driving device.
Preferably, the driving device 403 is a pneumatic driving device. The pneumatic driving device is a cylinder driving device 7. The cylinder driving apparatus 7 includes a cylinder block 701, a piston 702, and a three-way electromagnetic valve 703. Wherein the inlet and outlet of the front and rear chambers of the cylinder 701 are controlled by the opening and closing of the three-way solenoid valve 703, thereby controlling the front and rear movement of the piston 702 in the cylinder 701. Piston 702 is coupled to link 401 such that link 401 rotates or moves.
Preferably, the shutter type side wind roof prevention device 4 includes 2 links 401, one of which 401 extends from one side of the blowing cover 3 and is connected to the driving device 403, and the other of which 401 extends from the other side of the blowing cover 3 and is connected to the driving device 403. Both sides of the louver 402 are connected to one link 401, respectively.
Preferably, the 2 links 401 are arranged in parallel in the up-down position. The driving device 403 drives the connecting rod 401 to move, and drives the shutter plate 402 to move obliquely.
Preferably, the cords 502 are steel wire cords.
Preferably, the device further comprises a rectifying means driving means 8. The rectifying device driving device 8 is connected to the winch device 501 and drives the rotation of the winch device 501.
Preferably, the rectifying plate 504 is disposed parallel to the upper surface of the sintering pallet 1.
Preferably, the device further comprises a control system 9. The control system 9 is connected to the wind speed detector 6 and controls the drive means 403 and the rectifying means drive means 8.
According to a second embodiment of the present invention, a gas injection method for eliminating the influence of crosswind is provided.
A gas injection method for eliminating the influence of crosswind or a method using the gas injection apparatus according to the first embodiment, the method comprising the steps of:
1) The sintering machine starts to run, and the sintering machine trolley 1 moves forwards;
2) The wind speed detector 6 detects the wind speed at two sides of the sintering pallet 1 in the blowing cover 3 and feeds the wind speed back to the control system 9; if the crosswind does not affect the fuel gas injection, executing the step 5); if the crosswind influences the injection of the fuel gas, executing the step 3);
3) The control system 9 controls the driving device 403, the driving device 403 acts on the connecting rod 401, and the movement of the connecting rod 401 drives the shutter plate 402 to move obliquely; and/or
The control system 9 controls the rectifying device driving device 8, the rectifying device driving device 8 acts on the winch device 501, and the rotation of the winch device 501 lifts or lowers the rectifying plate 504, so that the distance between the rectifying plate 504 and the sintering pallet 1 is adjusted;
4) Detecting the wind speeds at two sides of the sintering pallet 1 in the injection cover 3 again to confirm that the injection of the fuel gas is not influenced;
5) And starting to blow fuel gas.
Preferably, the method further comprises: 4) In the running and gas blowing process of the sintering machine, the wind speed detector 6 detects the wind speeds at two sides of the sintering machine trolley 1 in the blowing cover 3 in real time, the judgment is carried out according to the wind speeds, and if the side wind does not influence the gas blowing, the running is continued; if the crosswind affects the injection of the fuel gas, the inclination angle of the shutter plate 402 is adjusted in real time by the driving device 403, and/or the distance between the rectifying plate 504 and the sintering pallet 1 is adjusted by the rectifying device driving device 8.
Example 1
As shown in fig. 1, the gas injection device for eliminating the influence of crosswind comprises a sintering pallet 1, a gas injection device 2 and an injection cover 3. The sintering pallet 1 is located in the blowing hood 3. The gas injection device 2 is located above the sintering pallet 1. Two side wall plates of the blowing hood 3 are located on both sides of the sintering pallet 1. The top of the blowing cover 3 is a shutter type side wind roof prevention device 4. The louver type side wind roof device 4 includes a link 401 and a louver 402. One end of the link 401 protrudes out of the side of the blowing hood 3. The shutter plate 402 is connected to the link 401.
Example 2
As shown in fig. 1, embodiment 1 is repeated except that the fuel gas injection device 2 includes a fuel gas injection header 201, a fuel gas injection branch pipe 202, and a fuel gas injection pipe 203. The gas injection pipe 203 is disposed above the sintering pallet 1, and the gas injection pipe 203 is located in the injection hood 3. The fuel gas injection branch pipe 202 has one end connected to the fuel gas injection header 201 and the other end connected to the fuel gas injection pipe 203. The device further comprises rectifying means 5. The rectifying device 5 includes a winch device 501, a rope 502, a fixed pulley 503, and a rectifying plate 504. The winch device 501 is arranged outside the blowing hood 3. The fixed pulley 503 is provided on the bottom surface of the louver type side wind roof apparatus 4 and is located directly above the gas blowing pipe 203. One end of the rope 502 is connected to the winch 501, and the other end of the rope 502 is connected to the rectifying plate 504 via the fixed pulley 503. The rectifying plate 504 is provided between the fixed pulley 503 and the gas blowing pipe 203.
Example 3
Embodiment 2 is repeated except that the louver type side wind roof panel apparatus 4 further includes a driving apparatus 403. The driving device 403 is an electric driving device. The driving device 403 is connected to the link 401.
Example 4
Embodiment 2 is repeated except that the louver type side wind roof panel apparatus 4 further includes a driving apparatus 403. The drive 403 is a pneumatic drive. The pneumatic driving device is a cylinder driving device 7. The cylinder driving apparatus 7 includes a cylinder block 701, a piston 702, and a three-way electromagnetic valve 703. Wherein the inlet and outlet of the front and rear chambers of the cylinder 701 are controlled by the opening and closing of the three-way solenoid valve 703, thereby controlling the front and rear movement of the piston 702 in the cylinder 701. Piston 702 is coupled to link 401 such that link 401 rotates or moves.
Example 5
Example 3 is repeated except that the device further comprises an anemometer 6. The wind speed detector 6 is provided on the blowing hood 3 and above the sintering pallet 1. The wind speed detector 6 detects the wind speed at both sides of the sintering pallet 1 in the blowing hood 3.
Example 6
Embodiment 5 is repeated except that the louver type side wind roof prevention device 4 includes 2 links 401, one of which 401 protrudes from one side of the blowing cover 3 and is connected to the driving device 403, and the other of which 401 protrudes from the other side of the blowing cover 3 and is connected to the driving device 403. Both sides of the louver 402 are connected to one link 401, respectively. The 2 links 401 are arranged in parallel in the up-down position. The driving device 403 drives the connecting rod 401 to move, and drives the shutter plate 402 to move obliquely. The cords 502 are steel wire cords.
Example 7
Example 6 is repeated except that the device further comprises a rectifying means driving means 8. The rectifying device driving device 8 is connected to the winch device 501 and drives the rotation of the winch device 501. The rectifying plate 504 is disposed parallel to the upper surface of the sintering pallet 1.
Example 8
Example 7 is repeated except that the device further comprises a control system 9. The control system 9 is connected to the wind speed detector 6 and controls the drive means 403 and the rectifying means drive means 8.
Use example 1
A gas blowing method for eliminating influence of crosswind or a method using the gas blowing apparatus of embodiment 8, the method comprising the steps of:
1) The sintering machine starts to run, and the sintering machine trolley 1 moves forwards;
2) The wind speed detector 6 detects the wind speed at two sides of the sintering pallet 1 in the blowing cover 3 and feeds the wind speed back to the control system 9; if the crosswind does not affect the fuel gas injection, executing the step 5); if the crosswind influences the injection of the fuel gas, executing the step 3);
3) The control system 9 controls the driving device 403, the driving device 403 acts on the connecting rod 401, and the movement of the connecting rod 401 drives the shutter plate 402 to move obliquely; and/or
The control system 9 controls the rectifying device driving device 8, the rectifying device driving device 8 acts on the winch device 501, and the rotation of the winch device 501 lifts or lowers the rectifying plate 504, so that the distance between the rectifying plate 504 and the sintering pallet 1 is adjusted;
4) Detecting the wind speeds at two sides of the sintering pallet 1 in the injection cover 3 again to confirm that the injection of the fuel gas is not influenced;
5) And starting to blow fuel gas.
Use of example 2
Example 1 was repeated except that the method further comprises: 4) In the running and gas blowing process of the sintering machine, the wind speed detector 6 detects the wind speeds at two sides of the sintering machine trolley 1 in the blowing cover 3 in real time, the judgment is carried out according to the wind speeds, and if the side wind does not influence the gas blowing, the running is continued; if the crosswind affects the injection of the fuel gas, the inclination angle of the shutter plate 402 is adjusted in real time by the driving device 403, and/or the distance between the rectifying plate 504 and the sintering pallet 1 is adjusted by the rectifying device driving device 8.
Claims (16)
1. The utility model provides a eliminate gas jetting device of crosswind influence, this device includes sintering machine platform truck (1), gas jetting device (2), jetting cover (3), sintering machine platform truck (1) are located jetting cover (3), gas jetting device (2) are located sintering machine platform truck (1) top; the method is characterized in that: two side wall plates of the blowing cover (3) are positioned on two sides of the sintering pallet (1), the top of the blowing cover (3) is provided with a shutter type side wind prevention top plate device (4), the shutter type side wind prevention top plate device (4) comprises a connecting rod (401) and a shutter plate (402), one end of the connecting rod (401) extends out of the side face of the blowing cover (3), and the shutter plate (402) is connected with the connecting rod (401).
2. The gas injection apparatus of claim 1, wherein: the gas injection device (2) comprises a gas injection header pipe (201), a gas injection branch pipe (202) and a gas injection pipe (203), wherein the gas injection pipe (203) is arranged above the sintering pallet (1), the gas injection pipe (203) is positioned in the injection cover (3), one end of the gas injection branch pipe (202) is connected with the gas injection header pipe (201) and the other end is connected with the gas injection pipe (203); the device still includes fairing (5), fairing (5) include winch device (501), rope (502), fixed pulley (503), rectification board (504), winch device (501) set up in the outside of jetting cover (3), fixed pulley (503) set up on the bottom surface of shutter type side wind roof device (4) and lie in directly over gas jetting pipe (203), the one end and winch device (501) of rope (502) are connected, the other end of rope (502) is connected with rectification board (504) behind fixed pulley (503), rectification board (504) set up between fixed pulley (503) and gas jetting pipe (203).
3. The gas injection apparatus of claim 2, wherein: the shutter type side wind roof prevention device (4) further comprises a driving device (403), and the driving device (403) is connected with the connecting rod (401); and/or
The device also comprises a wind speed detector (6), wherein the wind speed detector (6) is arranged on the blowing cover (3) and is positioned above the sintering machine trolley (1), and the wind speed detector (6) detects the wind speed at two sides of the sintering machine trolley (1) in the blowing cover (3).
4. A gas injection apparatus as claimed in claim 3, wherein: the driving device (403) is an electric driving device; or (b)
The driving device (403) is a pneumatic driving device; the pneumatic driving device is a cylinder driving device (7), the cylinder driving device (7) comprises a cylinder body (701), a piston (702) and a three-way electromagnetic valve (703), wherein the air inlet and the air outlet of a front chamber and a rear chamber of the cylinder body (701) are controlled through the opening and closing of the three-way electromagnetic valve (703), so that the piston (702) is controlled to move back and forth in the cylinder body (701), the piston (702) is connected with the connecting rod (401), and the connecting rod (401) rotates or moves.
5. A gas injection apparatus as claimed in claim 3, wherein: the shutter type side wind roof prevention device (4) comprises 2 connecting rods (401), wherein one connecting rod (401) extends out of one side of the blowing cover (3) and is connected with the driving device (403), and the other connecting rod (401) extends out of the other side of the blowing cover (3) and is connected with the driving device (403); both sides of the shutter plate (402) are respectively connected with a connecting rod (401).
6. The gas injection apparatus of claim 5, wherein: the 2 connecting rods (401) are arranged in parallel at the upper and lower positions, and the driving device (403) drives the connecting rods (401) to move so as to drive the shutter plates (402) to move obliquely; and/or
The rope (502) is a steel wire rope.
7. The gas injection apparatus of claim 2, wherein: the device also comprises a rectifying device driving device (8), wherein the rectifying device driving device (8) is connected with the winch device (501) and drives the winch device (501) to rotate; and/or
The rectifying plate (504) is arranged in parallel with the upper surface of the sintering pallet (1).
8. The gas injection device of any one of claims 3-4, wherein: the device also comprises a control system (9), wherein the control system (9) is connected with the wind speed detector (6) and controls the driving device (403) and the rectifying device driving device (8).
9. A fuel gas injection method for eliminating the influence of crosswind comprises the following steps:
1) The sintering machine starts to run, and the sintering machine trolley (1) moves forwards;
2) The wind speed detector (6) detects the wind speed at two sides of the sintering machine trolley (1) in the blowing cover (3) and feeds the wind speed back to the control system (9); if the crosswind does not affect the fuel gas injection, executing the step 5); if the crosswind influences the injection of the fuel gas, executing the step 3);
3) The control system (9) controls the driving device (403), the driving device (403) acts on the connecting rod (401), and the movement of the connecting rod (401) drives the shutter plate (402) to move obliquely;
4) Detecting the wind speeds at two sides of the sintering pallet (1) in the injection cover (3) again to confirm that the injection of the fuel gas is not influenced;
5) Starting to blow fuel gas;
the device comprises a sintering machine trolley (1), a gas blowing device (2) and a blowing cover (3), wherein the sintering machine trolley (1) is positioned in the blowing cover (3), and the gas blowing device (2) is positioned above the sintering machine trolley (1); the method is characterized in that: two side wall plates of the blowing cover (3) are positioned on two sides of the sintering pallet (1), the top of the blowing cover (3) is provided with a shutter type side wind prevention top plate device (4), the shutter type side wind prevention top plate device (4) comprises a connecting rod (401) and a shutter plate (402), one end of the connecting rod (401) extends out of the side surface of the blowing cover (3), and the shutter plate (402) is connected with the connecting rod (401); the shutter type side wind roof prevention device (4) further comprises a driving device (403), and the driving device (403) is connected with the connecting rod (401); the device also comprises a wind speed detector (6), wherein the wind speed detector (6) is arranged on the blowing cover (3) and is positioned above the sintering machine trolley (1), and the wind speed detector (6) detects the wind speed at two sides of the sintering machine trolley (1) in the blowing cover (3); the device also comprises a control system (9), wherein the control system (9) is connected with the wind speed detector (6) and controls the driving device (403) and the rectifying device driving device (8).
10. The method according to claim 9, wherein: the gas injection device (2) comprises a gas injection header pipe (201), a gas injection branch pipe (202) and a gas injection pipe (203), wherein the gas injection pipe (203) is arranged above the sintering pallet (1), the gas injection pipe (203) is positioned in the injection cover (3), one end of the gas injection branch pipe (202) is connected with the gas injection header pipe (201) and the other end is connected with the gas injection pipe (203); the device also comprises a rectifying device (5), wherein the rectifying device (5) comprises a winch device (501), a rope (502), a fixed pulley (503) and a rectifying plate (504), the winch device (501) is arranged on the outer side of the blowing cover (3), the fixed pulley (503) is arranged on the bottom surface of the shutter type side wind prevention top plate device (4) and is positioned right above the gas blowing pipe (203), one end of the rope (502) is connected with the winch device (501), the other end of the rope (502) is connected with the rectifying plate (504) after passing through the fixed pulley (503), and the rectifying plate (504) is arranged between the fixed pulley (503) and the gas blowing pipe (203); the method further comprises the steps of: in the step 3), the control system (9) controls the rectifying device driving device (8), the rectifying device driving device (8) acts on the winch device (501), and the rotation of the winch device (501) lifts or lowers the rectifying plate (504), so that the distance between the rectifying plate (504) and the sintering pallet (1) is adjusted.
11. The method according to claim 9, wherein: the method further comprises the steps of: 4) In the running and gas blowing process of the sintering machine, a wind speed detector (6) detects the wind speeds at two sides of a sintering machine trolley (1) in a blowing cover (3) in real time, the judgment is carried out according to the wind speeds, and if the side wind does not influence the gas blowing, the operation is continued; if the crosswind influences the injection of the fuel gas, the inclination angle of the shutter plate (402) is adjusted in real time through the driving device (403).
12. The method according to claim 10, wherein: the method further comprises the steps of: 4) In the running and gas blowing process of the sintering machine, a wind speed detector (6) detects the wind speeds at two sides of a sintering machine trolley (1) in a blowing cover (3) in real time, the judgment is carried out according to the wind speeds, and if the side wind does not influence the gas blowing, the operation is continued; if the crosswind influences the injection of the fuel gas, the distance between the rectifying plate (504) and the sintering pallet (1) is adjusted by a rectifying device driving device (8).
13. The method according to any one of claims 9-12, characterized in that: the driving device (403) is an electric driving device; or (b)
The driving device (403) is a pneumatic driving device; the pneumatic driving device is a cylinder driving device (7), the cylinder driving device (7) comprises a cylinder body (701), a piston (702) and a three-way electromagnetic valve (703), wherein the air inlet and the air outlet of a front chamber and a rear chamber of the cylinder body (701) are controlled through the opening and closing of the three-way electromagnetic valve (703), so that the piston (702) is controlled to move back and forth in the cylinder body (701), the piston (702) is connected with the connecting rod (401), and the connecting rod (401) rotates or moves.
14. The method according to any one of claims 9-12, characterized in that: the shutter type side wind roof prevention device (4) comprises 2 connecting rods (401), wherein one connecting rod (401) extends out of one side of the blowing cover (3) and is connected with the driving device (403), and the other connecting rod (401) extends out of the other side of the blowing cover (3) and is connected with the driving device (403); both sides of the shutter plate (402) are respectively connected with a connecting rod (401).
15. The method according to claim 14, wherein: the 2 connecting rods (401) are arranged in parallel at the upper and lower positions, and the driving device (403) drives the connecting rods (401) to move so as to drive the shutter plates (402) to move obliquely.
16. The method according to claim 10, wherein: the rope (502) is a steel wire rope; the device also comprises a rectifying device driving device (8), wherein the rectifying device driving device (8) is connected with the winch device (501) and drives the winch device (501) to rotate; the rectifying plate (504) is arranged in parallel with the upper surface of the sintering pallet (1).
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| CN201810262191.7A CN108267010B (en) | 2018-03-28 | 2018-03-28 | Gas injection device and method for eliminating influence of crosswind |
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| CN201810262191.7A CN108267010B (en) | 2018-03-28 | 2018-03-28 | Gas injection device and method for eliminating influence of crosswind |
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| CN108267010B true CN108267010B (en) | 2023-10-27 |
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| CN110345765B (en) * | 2019-07-30 | 2021-06-01 | 中冶长天国际工程有限责任公司 | Sintering charge level injection gas anti-escape system and control method thereof |
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