CN108660271B - Blast furnace dry quenching coke powder spraying equipment - Google Patents
Blast furnace dry quenching coke powder spraying equipment Download PDFInfo
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- CN108660271B CN108660271B CN201810751409.5A CN201810751409A CN108660271B CN 108660271 B CN108660271 B CN 108660271B CN 201810751409 A CN201810751409 A CN 201810751409A CN 108660271 B CN108660271 B CN 108660271B
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- 238000010791 quenching Methods 0.000 title claims abstract description 75
- 230000000171 quenching effect Effects 0.000 title claims abstract description 71
- 238000005507 spraying Methods 0.000 title claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 15
- 239000000843 powder Substances 0.000 claims abstract description 108
- 239000003245 coal Substances 0.000 claims abstract description 81
- 238000007664 blowing Methods 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 6
- 210000003437 trachea Anatomy 0.000 claims 4
- 239000000571 coke Substances 0.000 abstract description 45
- 238000009835 boiling Methods 0.000 abstract description 5
- 239000002817 coal dust Substances 0.000 description 21
- 241000273930 Brevoortia tyrannus Species 0.000 description 11
- 239000000243 solution Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 229940098458 powder spray Drugs 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/007—Conditions of the cokes or characterised by the cokes used
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Coke Industry (AREA)
Abstract
The blast furnace dry quenching powder blowing equipment comprises a pulverized coal bunker, wherein first through holes which are bilaterally symmetrical are respectively formed in the lower ports of the pulverized coal bunker, the inner sides of the first through holes on the right side are respectively connected with a rotating shaft of a first motor through a bearing, the left side of the first motor is respectively fixedly connected with the right side of the corresponding pulverized coal bunker, the left end of the rotating shaft of the first motor is respectively fixedly connected with the right end of a transverse pipe, and the left end of the periphery of the transverse pipe is respectively connected with the inner side bearing of the first through hole on the left side. According to the invention, the mixing proportion of the coal powder and the dry coke quenching powder is controlled by respectively controlling the feeding speed of the coal powder and the dry coke quenching powder, the mixing efficiency is increased, the hardened coal powder block or the dry coke quenching powder block can be smashed by the smashing impeller, the blowing quality is improved, meanwhile, the lower port of the coal powder bin can be cleaned by the smashing impeller, the feeding of the coal powder and the dry coke quenching powder is facilitated, the coal powder and the dry coke quenching powder are more fully mixed by utilizing a boiling type mixing principle, the market demand can be met, and the dry coke quenching powder mixing device is suitable for popularization.
Description
Technical Field
The invention belongs to the field of blowing devices, and particularly relates to a blast furnace dry quenching coke powder blowing device.
Background
The coal powder is injected to replace part of coke, so that the coking investment can be saved, a coke oven is built less, and the air pollution caused by coking is reduced; on the other hand, the condition of supply and demand tension of coking coal can be greatly relieved; in the prior art, blast furnace smelting adopts full coke smelting or partial coke and partial coal injection, researches show that the mesh size of the fly ash of dry quenching and the coal powder prepared by a coal injection mill of the blast furnace are basically the same, and the heat value of the fly ash (coke powder) of the dry quenching is higher than that of the coal powder according to physicochemical index parameters provided by a chemical plant, and the dry quenching coke powder is mixed into the coal powder in proportion, so that the heat value of the coal powder can be improved, the waste utilization of the dry quenching coke powder is realized, and the energy conservation and the environmental protection are realized; however, the existing blast furnace blowing device is complex in structure, coal powder and dry quenching coke powder need to be weighed respectively when mixed, the mixing efficiency is poor, a large amount of coal powder or dry quenching coke powder is accumulated in a coal powder bin to easily form plate caking, the mixing of the coal powder and the dry quenching coke powder is influenced, a powder conveying pipeline is blocked, the blowing of the coal powder is influenced, and the actual requirement cannot be met, so that the novel blast furnace dry quenching coke powder blowing equipment is invented.
Disclosure of Invention
The invention provides a blast furnace dry quenching powder spraying device which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
The blast furnace dry quenching powder blowing equipment comprises a pulverized coal bunker, wherein first through holes which are bilaterally symmetrical are respectively formed in the lower end opening of the pulverized coal bunker, the inner sides of the first through holes on the right side are respectively connected with a rotating shaft of a first motor in a bearing mode, the left side of the first motor is respectively fixedly connected with the right side of the corresponding pulverized coal bunker, the left end of the rotating shaft of the first motor is respectively fixedly connected with the right end of a transverse pipe, the left end of the periphery of the transverse pipe is respectively connected with the inner side bearing of the first through hole on the left side, a transverse shaft is movably installed in the transverse pipe, the right end of the transverse shaft is respectively connected with the left end bearing of the rotating shaft of the corresponding first motor, the left end of the transverse shaft is respectively fixedly connected with the right end of the rotating shaft of a second motor, the right side of the second motor is respectively fixedly connected with the left side of the corresponding pulverized coal bunker, and the; a row of second through holes are respectively formed in the upper part, the lower part, the front part and the rear part of the middle part of the transverse pipe, scrapers are respectively fixedly mounted in the upper part, the lower part and the front part of the periphery of the middle part of the transverse pipe, the inner sides of the scrapers are respectively provided with third through holes corresponding to the second through holes, the second through holes are respectively collinear with the central lines of the corresponding third through holes, rotating shafts are respectively mounted in the third through holes in a bearing mode, the outer ends of the rotating shafts are respectively positioned on the outer sides of the corresponding scrapers, the inner ends of the rotating shafts respectively penetrate through the corresponding second through holes and are positioned in the transverse pipe, a plurality of first helical gears are respectively and fixedly mounted on the periphery of the transverse shaft, the inner ends of the rotating shafts are respectively and fixedly matched with the corresponding second helical gears, crushing impellers are respectively and fixedly mounted at the outer ends of the rotating shafts, curved grooves which are symmetrical; the coal powder bin is provided with a Y-shaped pipe below, the upper end port of the Y-shaped pipe is fixedly connected with the lower end port of the corresponding coal powder bin, the lower end port of the Y-shaped pipe is fixedly connected with the upper end port of the four-way pipe, the left end port of the four-way pipe is fixedly provided with an air pipe, the right end of the air pipe is fixedly provided with a nozzle, the bottom side of the air pipe is fixedly provided with a throttle valve, the upper end port of the throttle valve is communicated with the inside of the air pipe, and the lower end port of the throttle.
According to the blast furnace dry quenching powder spraying and blowing equipment, the middle of the top side of the Y-shaped pipe is provided with the fourth through hole, the rotating shaft of the third motor is arranged in the fourth through hole in a bearing mode, the third motor is fixedly connected with the Y-shaped pipe, and the lower end of the rotating shaft of the third motor is fixedly provided with the stirring device.
According to the blast furnace dry quenching powder spraying device, the lower port of the four-way pipe is internally provided with the filter screen.
According to the blast furnace dry quenching powder spraying device, the lower port of the four-way pipe is provided with the annular groove, and the filter screen is movably arranged in the annular groove.
According to the blast furnace dry quenching powder spraying device, the vibrating motors are respectively and fixedly installed on the right sides of the pulverized coal bins.
According to the blast furnace dry quenching powder spraying device, the speed regulators are fixedly arranged on the bottom sides of the first motors respectively.
The invention has the advantages that: according to the invention, the mixing proportion of the coal powder and the dry coke quenching powder is controlled by respectively controlling the feeding speed of the coal powder and the dry coke quenching powder, the mixing efficiency is increased, the hardened coal powder block or the dry coke quenching powder block can be smashed by the smashing impeller, the blowing quality is improved, meanwhile, the lower port of the coal powder bin can be cleaned by the smashing impeller, the feeding of the coal powder and the dry coke quenching powder is facilitated, the coal powder and the dry coke quenching powder are more fully mixed by utilizing a boiling type mixing principle, the market demand can be met, and the dry coke quenching powder mixing device is suitable for popularization. When the device works, the first motor and the second motor are respectively electrified, and the rotating speed ratio of the first motor on the left side to the first motor on the right side is respectively adjusted according to the mixing ratio of the pulverized coal to the dry coke quenching powder, such as: the mixing ratio of the coal powder and the dry coke quenching powder is 3 \ 1, and the rotating speed ratio of the left first motor to the right first motor is 3 \ 1; the first motor drives the scrapers to rotate through the corresponding horizontal pipes respectively, the pulverized coal or the dry quenching powder at the bottom of the pulverized coal bin is scraped into the lower ports of the corresponding pulverized coal bins by the scrapers respectively, meanwhile, the second motor is electrified to rotate rapidly, the second motor is opposite to the corresponding first motor in rotation direction respectively, the second motor drives the corresponding first bevel gears to rotate through the transverse shafts respectively, the first bevel gears are meshed and matched with the corresponding second bevel gears respectively, the second bevel gears drive the crushing impellers to rotate through the corresponding rotating shafts respectively, plate caking is easily generated due to overlarge stacking pressure of coal dust or dry coke quenching powder at the bottom of the coal dust bin, the crushing impellers rotating at high speed can stir the hardened blocks, the crushing impellers have the function of loosening the coal dust or the dry coke quenching powder at the bottom of the coal dust bin, the phenomenon that the normal rotation of the scraper is hindered due to the fact that the hardened blocks are too strong, and the hardened blocks cannot scrape the coal dust or the dry coke quenching powder at the bottom of the coal dust bin into the lower port of the corresponding coal dust bin is avoided; part of hardened blocks which are not smashed by the smashing impeller rotate along with the scraping plate, under the action of centrifugal force, coal dust or dry coke quenching powder and plate caking thereof on the top sides of the front side scraping plate and the rear side scraping plate are respectively thrown into the corresponding curved surface grooves, meanwhile, the coal dust or the dry coke quenching powder and the hardened blocks thereof are smashed again by the smashing impeller of the curved surface grooves, in the process that the smashing impeller continuously enters and exits from the curved surface grooves, the smashing impeller can respectively smash the coal dust or the dry coke quenching powder which is attached or solidified on the inner wall of the curved surface grooves, the cleaning of the curved surface grooves is realized, the completely powdered coal dust or the dry coke quenching powder enters the lower end ports of the coal dust bins from the lower sides of the corresponding curved surface grooves again, the coal dust and the dry coke quenching powder respectively enter the upper end ports of the corresponding Y-shaped pipes from the lower end ports of the coal dust bins, and the dry coke quenching powder are converged in the Y-shaped pipes and enter the; compressed air is injected into the air pipe from the left end of the air pipe by the air compression pump, a part of the compressed air enters the lower port of the four-way pipe through the throttle valve and the connecting pipe, the compressed air blows upwards to enable the pulverized coal entering the inner cavity of the four-way pipe from the upper port of the four-way pipe and the dry coke quenching powder to form boiling powder spray, the pulverized coal and the dry coke quenching powder are fully mixed, the other part of the compressed air is rapidly sprayed into the right port of the four-way pipe through the nozzle, the process that the compressed air is sprayed out by the nozzle forms strong airflow to take away the powder spray in the inner cavity of the four-way pipe, the right port of the four-way pipe is connected with the blast furnace through the pipeline, the pulverized coal and the dry coke quenching powder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of the view of FIG. 1 taken along line B; FIG. 4 is an enlarged view of section I of FIG. 1; fig. 5 is a partial enlarged view of ii of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
blast furnace dry quenching coke powder blowing equipment, as shown in the figure, comprises a pulverized coal bunker 1, wherein the lower port of the pulverized coal bunker 1 is respectively provided with first through holes 2 which are bilaterally symmetrical, the inner sides of the first through holes 2 on the right side are respectively connected with a rotating shaft of a first motor 3 in a bearing mode, the left side of the first motor 3 is respectively fixedly connected with the right side of the corresponding pulverized coal bunker 1, the left end of the rotating shaft of the first motor 3 is respectively fixedly connected with the right end of a transverse pipe 4, the left end of the periphery of the transverse pipe 4 is respectively connected with the inner side bearing of the first through hole 2 on the left side, a transverse shaft 5 is respectively movably arranged in the transverse pipe 4, the right end of the transverse shaft 5 is respectively connected with the left end bearing of the rotating shaft of the corresponding first motor 3, the left end of the transverse shaft 5 is respectively fixedly connected with the right end of the rotating shaft of a second motor 6, the right side of the second motor 6 is respectively fixedly, The center lines of the transverse shaft 5, the transverse pipe 4 and the rotating shaft of the first motor 3 are collinear; a row of second through holes 7 are respectively arranged at the upper part, the lower part, the front part and the rear part of the middle part of the transverse pipe 4, scrapers 8 are respectively fixedly arranged at the upper part, the lower part, the front part and the rear part of the periphery of the middle part of the transverse pipe 4, the inner sides of the scrapers 8 are respectively provided with third through holes 9 corresponding to the second through holes 7, the second through holes 7 are respectively collinear with the central lines of the corresponding third through holes 9, rotating shafts 10 are respectively arranged in the third through holes 9 in a bearing way, the outer ends of the rotating shafts 10 are respectively positioned at the outer sides of the corresponding scrapers 8, the inner ends of the rotating shafts 10 respectively penetrate through the corresponding second through holes 7 and are positioned in the transverse pipe 4, a plurality of first bevel gears 11 are respectively and fixedly arranged at the periphery of the transverse shaft 5, the inner ends of the rotating shafts 10 are respectively and fixedly provided with second bevel gears 12, the circles of the curved surface grooves 14 are respectively collinear with the central lines of the corresponding transverse pipes 4, and the crushing impellers 13 can respectively rotate along the corresponding curved surface grooves 14; the coal powder bunker is characterized in that a Y-shaped pipe 15 is arranged below the coal powder bunker 1, the upper end ports of the Y-shaped pipes 15 are respectively and fixedly connected with the lower end ports of the corresponding coal powder bunkers 1, the lower end ports of the Y-shaped pipes 15 are fixedly connected with the upper end ports of a four-way pipe 19, an air pipe 20 is fixedly installed at the left end port of the four-way pipe 19, a nozzle 21 is fixedly installed at the right end of the air pipe 20, a throttle valve 22 is fixedly installed at the bottom side of the air pipe 20, the upper end ports of the throttle valve 22 are communicated with the interior of the air pipe 20, and the lower. According to the invention, the mixing proportion of the coal powder and the dry coke quenching powder is controlled by respectively controlling the feeding speed of the coal powder and the dry coke quenching powder, the mixing efficiency is increased, the hardened coal powder block or the dry coke quenching powder block can be smashed by the smashing impeller, the blowing quality is improved, meanwhile, the lower port of the coal powder bin can be cleaned by the smashing impeller, the feeding of the coal powder and the dry coke quenching powder is facilitated, the coal powder and the dry coke quenching powder are more fully mixed by utilizing a boiling type mixing principle, the market demand can be met, and the dry coke quenching powder mixing device is suitable for popularization. When the device is used, the first motor 3 and the second motor 6 are respectively electrified when the device works, and the rotating speed ratio of the first motor 3 on the left side and the first motor 3 on the right side is respectively adjusted according to the mixing ratio of the pulverized coal and the dry coke quenching powder, for example: the mixing ratio of the coal powder and the dry quenched coke powder is 3 \ 1, and the rotation speed ratio of the left first motor 3 to the right first motor 3 is 3 \ 1; the first motor 3 drives the scrapers 8 to rotate through the corresponding horizontal pipes 4 respectively, the pulverized coal or the dry quenching coke powder at the bottom of the pulverized coal bin 1 is scraped into the lower port of the corresponding pulverized coal bin 1 by the scrapers 8 respectively, meanwhile, the second motor 6 is electrified to rotate rapidly, the direction of the second motor 6 is opposite to that of the corresponding first motor 3 respectively, the second motor 6 drives the corresponding first bevel gears 11 to rotate through the horizontal shafts 5 respectively, the first bevel gears 11 are meshed and matched with the corresponding second bevel gears 12 respectively, the second bevel gears 12 drive the crushing impellers 13 to rotate through the corresponding rotating shafts 10 respectively, the pulverized coal or the dry quenching coke powder at the bottom of the pulverized coal bin 1 is easy to generate plate caking due to overlarge pressure, the crushing impellers 13 rotating at high speed can stir the hardened blocks, the crushing impellers 13 have the function of loosening the pulverized coal or the dry quenching coke powder at the bottom of the pulverized coal bin 1, and the normal rotation of the scrapers 8 is prevented from being hindered due to, the hardened block is too firm, and the scraper 8 cannot scrape the coal powder or the dry coke quenching powder at the bottom of the coal powder bin 1 into the corresponding lower port of the coal powder bin 1; the plate lumps which are not partially crushed by the crushing impeller 13 rotate along with the scrapers 8, under the action of centrifugal force, the coal dust or dry coke-quenching powder and the plate lumps on the top sides of the front side and the rear side scrapers 8 are respectively thrown into the corresponding curved surface grooves 14, meanwhile, the pulverized coal or the dry coke quenching powder and the hardened blocks thereof are crushed again by the crushing impeller 13 of the curved groove 14, and in the process that the crushing impeller 13 continuously enters and exits the curved groove 14, the crushing impeller 13 can respectively crush the coal dust or the dry coke quenching powder which is attached or hardened and solidified on the inner wall of the curved groove 14, so as to realize the cleaning of the curved groove 14, the completely powdered coal dust or the dry coke quenching powder enters the lower port of the coal dust bin 1 again from the lower side of the corresponding curved groove 14, the coal dust and the dry coke quenching powder respectively enter the upper port of the corresponding Y-shaped pipe 19 from the lower port of the coal dust bin 1, and the coal dust and the dry coke quenching powder are converged in the Y-shaped pipe 15 and enter the upper port of the four-way pipe 19 from the lower port of the Y-shaped pipe 15; compressed air is injected into the air pipe 20 from the left end of the air pipe 20 by the air compression pump, a part of the compressed air enters the lower port of the four-way pipe 19 through the throttle valve 22 and the connecting pipe 23, the compressed air blows upwards to enable coal powder entering the inner cavity of the four-way pipe 19 from the upper port of the four-way pipe 19 and dry coke-quenching powder to form boiling powder spray, the coal powder and the dry coke-quenching powder are fully mixed, the other part of the compressed air is fast sprayed into the right port of the four-way pipe 19 through the nozzle 21, the strong airflow is formed in the process that the nozzle 21 sprays the compressed air to take away the powder spray in the inner cavity of the four-way pipe 19, the right port of the four-way pipe 19 is connected with the blast furnace through a pipeline, the coal powder and the dry coke-quenching powder form powder.
Specifically, as shown in the figure, a fourth through hole 16 is formed in the middle of the top side of the Y-shaped pipe 15 in the embodiment, a rotating shaft of a third motor 17 is bearing-mounted in the fourth through hole 16, the third motor 17 is fixedly connected with the Y-shaped pipe 15, and a stirring device 18 is fixedly mounted at the lower end of the rotating shaft of the third motor 17. After the powder in the coal powder bin 1 enters the Y-shaped pipe 15, the powder is initially mixed and stirred by the stirring device 18.
Specifically, as shown in the figure, a filter screen 24 is disposed in the lower port of the four-way pipe 19 according to the embodiment. The filter screen 24 can reduce the pressure of the compressed air in the connecting pipe 23 blowing into the four-way pipe 19, so as to avoid blowing the powder back to the upper port of the four-way pipe 19, and meanwhile, the filter screen 24 can avoid the powder falling into the connecting pipe 23.
Further, as shown in the figure, the lower port of the four-way pipe 19 according to the embodiment is provided with an annular groove 27, and the filter screen 24 is movably installed in the annular groove 27. The filter screen 24 is movably arranged, so that the filter screen 24 is convenient to clean and replace.
Further, as shown in the drawings, the vibration motors 25 are fixedly installed at the right sides of the pulverized coal bunker 1. When the vibration motor 25 works, the bin walls of the corresponding pulverized coal bins 1 are vibrated respectively, so that the pulverized coal or the dry coke quenching powder attached to the bin walls are shaken off, and the pulverized coal or the dry coke quenching powder is prevented from forming plate caking and being attached to the bin walls when being extruded.
Further, as shown in the drawings, speed regulators 26 are fixedly mounted on the bottom sides of the first motors 3 in the present embodiment, respectively. The rotational speeds of the first motors 3 can be respectively adjusted by the speed adjusters 26, which facilitate adjustment of the rotational speeds of the first motors 3.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. Blast furnace dry quenching powder spraying equipment is characterized in that: comprises two pulverized coal bins (1), wherein the lower ports of the pulverized coal bins (1) are respectively provided with first through holes (2) which are bilaterally symmetrical, the inner sides of the first through holes (2) on the right sides are respectively connected with a rotating shaft of a first motor (3) in a bearing mode, the left side of the first motor (3) is respectively fixedly connected with the right side of the corresponding pulverized coal bin (1), the left end of the rotating shaft of the first motor (3) is respectively fixedly connected with the right end of a transverse pipe (4), the left end of the periphery of the transverse pipe (4) is respectively connected with the inner side bearing of the first through hole (2) on the left side, a transverse shaft (5) is respectively and movably installed in the transverse pipe (4), the right end of the transverse shaft (5) is respectively connected with the left end bearing of the rotating shaft of the first motor (3) in a corresponding mode, the left end of the transverse shaft (5) is respectively and fixedly connected with the right end of the rotating shaft of a second motor (6), the right, the first through hole (2) is respectively collinear with the rotating shaft of the corresponding second motor (6), the transverse shaft (5), the transverse pipe (4) and the rotating shaft center line of the first motor (3); a row of a plurality of second through holes (7) are respectively formed in the upper part, the lower part, the front part and the rear part of the middle part of the transverse pipe (4), scrapers (8) are respectively fixedly installed in the upper part, the lower part, the front part and the rear part of the periphery of the middle part of the transverse pipe (4), third through holes (9) are respectively formed in the inner sides of the scrapers (8) corresponding to the second through holes (7), the second through holes (7) are respectively collinear with the central lines of the corresponding third through holes (9), rotating shafts (10) are respectively installed in the third through holes (9) in a bearing mode, the outer ends of the rotating shafts (10) are respectively located on the outer sides of the corresponding scrapers (8), the inner ends of the rotating shafts (10) respectively penetrate through the corresponding second through holes (7) and are located in the transverse pipe (4), a plurality of first helical gears (11) are respectively and uniformly and fixedly installed on the periphery of, the outer ends of the rotating shafts (10) are respectively fixedly provided with a crushing impeller (13), the inner wall of the lower end port of the pulverized coal bunker (1) is respectively provided with a curved surface groove (14) which is symmetrical front and back, the axis of a circle where the curved surface groove (14) is located is respectively collinear with the central line of the corresponding transverse pipe (4), and the crushing impellers (13) can respectively rotate along the corresponding curved surface grooves (14); the lower side of buggy storehouse (1) is equipped with Y type pipe (15), the last port of Y type pipe (15) respectively with the lower port fixed connection of corresponding buggy storehouse (1), the last port of Y type pipe (15) is decided and is connected the last port of four-way pipe (19), the left port fixed mounting trachea (20) of four-way pipe (19), the right-hand member fixed mounting nozzle (21) of trachea (20), bottom side fixed mounting choke valve (22) of trachea (20), the last port of choke valve (22) communicates with each other with trachea (20) inside, the lower port of choke valve (22) passes through connecting pipe (23) fixed connection with the lower port of four-way pipe (19).
2. The blast furnace dry quenching powder blowing device as claimed in claim 1, wherein: a fourth through hole (16) is formed in the middle of the top side of the Y-shaped pipe (15), a rotating shaft of a third motor (17) is mounted in the fourth through hole (16) through a bearing, the third motor (17) is fixedly connected with the Y-shaped pipe (15), and a stirring device (18) is fixedly mounted at the lower end of the rotating shaft of the third motor (17).
3. The blast furnace dry quenching powder blowing device as claimed in claim 1, wherein: a filter screen (24) is arranged in the lower port of the four-way pipe (19).
4. The blast furnace dry quenching powder blowing apparatus as claimed in claim 1 or 3, wherein: an annular groove (27) is formed in the lower port of the four-way pipe (19), and the filter screen (24) is movably arranged in the annular groove (27).
5. The blast furnace dry quenching powder blowing device as claimed in claim 1, wherein: and a vibration motor (25) is fixedly arranged on the right side of the pulverized coal bin (1) respectively.
6. The blast furnace dry quenching powder blowing device as claimed in claim 1, wherein: the speed regulators (26) are fixedly arranged on the bottom sides of the first motors (3) respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751409.5A CN108660271B (en) | 2018-07-10 | 2018-07-10 | Blast furnace dry quenching coke powder spraying equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751409.5A CN108660271B (en) | 2018-07-10 | 2018-07-10 | Blast furnace dry quenching coke powder spraying equipment |
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| CN108660271A CN108660271A (en) | 2018-10-16 |
| CN108660271B true CN108660271B (en) | 2019-12-13 |
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| CN101020931A (en) * | 2007-03-21 | 2007-08-22 | 鞍钢股份有限公司 | Blast furnace dry quenching powder spraying process and equipment |
| CN205088181U (en) * | 2015-11-09 | 2016-03-16 | 马鞍山钢铁股份有限公司 | Dry coke quenching coking CDQ powder discharging device |
| CN205347463U (en) * | 2016-01-28 | 2016-06-29 | 鞍钢股份有限公司 | Device for blending coke powder into blast furnace blowing raw coal |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3971654A (en) * | 1974-10-16 | 1976-07-27 | Bethlehem Steel Corporation | Method of injecting pelletized coal through blast furnace tuyeres |
| CN101020931A (en) * | 2007-03-21 | 2007-08-22 | 鞍钢股份有限公司 | Blast furnace dry quenching powder spraying process and equipment |
| CN100463974C (en) * | 2007-03-21 | 2009-02-25 | 鞍钢股份有限公司 | Blast furnace dry quenching powder spraying process and equipment |
| CN205088181U (en) * | 2015-11-09 | 2016-03-16 | 马鞍山钢铁股份有限公司 | Dry coke quenching coking CDQ powder discharging device |
| CN205347463U (en) * | 2016-01-28 | 2016-06-29 | 鞍钢股份有限公司 | Device for blending coke powder into blast furnace blowing raw coal |
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| CN108660271A (en) | 2018-10-16 |
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Denomination of invention: Blast furnace dry quenching powder injection equipment Effective date of registration: 20230629 Granted publication date: 20191213 Pledgee: Dongying Bank Co.,Ltd. Jinan Tianqiao Branch Pledgor: Jinan Gaotou Energy Development Co.,Ltd. Registration number: Y2023980046369 |
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Denomination of invention: Blast furnace dry quenching coke powder injection equipment Granted publication date: 20191213 Pledgee: Dongying Bank Co.,Ltd. Jinan Tianqiao Branch Pledgor: Jinan Gaotou Energy Development Co.,Ltd. Registration number: Y2024980025517 |